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Dr. Ileana Nicoleta Popescu
Faculty of Materials Engineering and Mechanics, Valahia University of Targoviste, Targoviste , Romania

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0 Biosensors
0 Nanomaterials
0 Sensors
0 microfluidic devices

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Review
Published: 18 November 2020 in Sensors
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The coronavirus disease 2019 (COVID-19) pandemic is considered a public health emergency of international concern. The 2019 novel coronavirus (2019-nCoV) or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that caused this pandemic has spread rapidly to over 200 countries, and has drastically affected public health and the economies of states at unprecedented levels. In this context, efforts around the world are focusing on solving this problem in several directions of research, by: (i) exploring the origin and evolution of the phylogeny of the SARS-CoV-2 viral genome; (ii) developing nanobiosensors that could be highly effective in detecting the new coronavirus; (iii) finding effective treatments for COVID-19; and (iv) working on vaccine development. In this paper, an overview of the progress made in the development of nanobiosensors for the detection of human coronaviruses (SARS-CoV, SARS-CoV-2, and Middle East respiratory syndrome coronavirus (MERS-CoV) is presented, along with specific techniques for modifying the surface of nanobiosensors. The newest detection methods of the influenza virus responsible for acute respiratory syndrome were compared with conventional methods, highlighting the newest trends in diagnostics, applications, and challenges of SARS-CoV-2 (COVID-19 causative virus) nanobiosensors.

ACS Style

Badriyah Alhalaili; Ileana Popescu; Olfa Kamoun; Feras Alzubi; Sami Alawadhia; Ruxandra Vidu. Nanobiosensors for the Detection of Novel Coronavirus 2019-nCoV and Other Pandemic/Epidemic Respiratory Viruses: A Review. Sensors 2020, 20, 6591 .

AMA Style

Badriyah Alhalaili, Ileana Popescu, Olfa Kamoun, Feras Alzubi, Sami Alawadhia, Ruxandra Vidu. Nanobiosensors for the Detection of Novel Coronavirus 2019-nCoV and Other Pandemic/Epidemic Respiratory Viruses: A Review. Sensors. 2020; 20 (22):6591.

Chicago/Turabian Style

Badriyah Alhalaili; Ileana Popescu; Olfa Kamoun; Feras Alzubi; Sami Alawadhia; Ruxandra Vidu. 2020. "Nanobiosensors for the Detection of Novel Coronavirus 2019-nCoV and Other Pandemic/Epidemic Respiratory Viruses: A Review." Sensors 20, no. 22: 6591.

Journal article
Published: 08 November 2019 in Sensors
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In order for automatic microinjection to serve biomedical and genetic research, we have designed and manufactured a PDMS-based sensor with a circular section channel using the microwire molding technique. For the very precise control of microfluidic transport, we developed a microfluidic pulse width modulation system (MPWM) for automatic microinjections at a picoliter level. By adding a computer-aided detection and tracking of fluid-specific elements in the microfluidic circuit, the PDMS microchannel sensor became the basic element in the automatic control of the microinjection sensor. With the PDMS microinjection sensor, we precise measured microfluidic volumes under visual detection, assisted by very precise computer equipment (with precision below 1 μm) based on image processing. The calibration of the MPWM system was performed to increase the reproducibility of the results and to detect and measure microfluidic volumes. The novel PDMS-based sensor system for MPWM measurements of microfluidic volumes contributes to the advancement of intelligent control methods and techniques, which could lead to new developments in the design, control, and in applications of real-time intelligent sensor system control.

ACS Style

Mihăiţă Nicolae Ardeleanu; Ileana Nicoleta Popescu; Iulian Nicolae Udroiu; Emil Mihai Diaconu; Simona Mihai; Emil Lungu; Badriyah Alhalaili; Ruxandra Vidu; Vidu. Novel PDMS-based Sensor System for MPWM Measurements of Picoliter Volumes in Microfluidic Devices. Sensors 2019, 19, 4886 .

AMA Style

Mihăiţă Nicolae Ardeleanu, Ileana Nicoleta Popescu, Iulian Nicolae Udroiu, Emil Mihai Diaconu, Simona Mihai, Emil Lungu, Badriyah Alhalaili, Ruxandra Vidu, Vidu. Novel PDMS-based Sensor System for MPWM Measurements of Picoliter Volumes in Microfluidic Devices. Sensors. 2019; 19 (22):4886.

Chicago/Turabian Style

Mihăiţă Nicolae Ardeleanu; Ileana Nicoleta Popescu; Iulian Nicolae Udroiu; Emil Mihai Diaconu; Simona Mihai; Emil Lungu; Badriyah Alhalaili; Ruxandra Vidu; Vidu. 2019. "Novel PDMS-based Sensor System for MPWM Measurements of Picoliter Volumes in Microfluidic Devices." Sensors 19, no. 22: 4886.

Journal article
Published: 01 May 2019 in Scientific Bulletin of Valahia University - Materials and Mechanics
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A microfluidic device designated for measurement of fluidic flows with different viscosity, necessary within trapping/realising of cells/particles system has been developed. We use a new concept as Microfluidic Pulse Width Modulation (MPWM) for controlling transport of a single cell/particle. The image processing helped the nano-hydraulic volumes/flow rates measurement, through tracking inovative methods with the purpose to build a flow sensor. The device open an unique opportunitie for single cell study with applications in biomedical devices, tools for biochemistry or analytical systems.

ACS Style

Mihǎiţǎ Nicolae Ardeleanu; Simona Mihai; Ruxandra Vidu; Emil Mihai Diaconu; Ileana Nicoleta Popescu. Design of Microfluidic Device and Measurements of MPWM for Single Cell /Particle Manipulation. Scientific Bulletin of Valahia University - Materials and Mechanics 2019, 17, 39 -43.

AMA Style

Mihǎiţǎ Nicolae Ardeleanu, Simona Mihai, Ruxandra Vidu, Emil Mihai Diaconu, Ileana Nicoleta Popescu. Design of Microfluidic Device and Measurements of MPWM for Single Cell /Particle Manipulation. Scientific Bulletin of Valahia University - Materials and Mechanics. 2019; 17 (16):39-43.

Chicago/Turabian Style

Mihǎiţǎ Nicolae Ardeleanu; Simona Mihai; Ruxandra Vidu; Emil Mihai Diaconu; Ileana Nicoleta Popescu. 2019. "Design of Microfluidic Device and Measurements of MPWM for Single Cell /Particle Manipulation." Scientific Bulletin of Valahia University - Materials and Mechanics 17, no. 16: 39-43.

Review
Published: 01 April 2018 in Scientific Bulletin of Valahia University - Materials and Mechanics
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Powder mixtures compaction behavior can be quantitatively expressed by densification equations that describe the relationship between densities - applied pressure during the compaction stages, using correction factors. The modelling of one phase (metal/ceramic) powders or two-phase metal-ceramic powder composites was studied by many researchers, using the most commonly compression equations (Balshin, Heckel, Cooper and Eaton, Kawakita and Lüdde) or relative new ones (Panelli - Ambrózio Filho, Castagnet-Falcão- Leal Neto, Ge Rong-de, Parilák and Dudrová, Gerdemann and Jablonski. Also, for a better understanding of the consolidation process by compressing powder blends and for better prediction of compaction behavior, it's necessary the modeling and simulation of the powder pressing process by computer numerical simulation. In this paper are presented the effect of ceramic particles additions in metallic matrix on the compressibility of composites made by P/M route, taking into account (a) the some of above mentioned powder compression equations and also (b) the compaction behavior modeling through finite element method (FEM) and discrete element modeling (DEM) or combined finite/ discrete element (FE/DE) method.

ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu. Compaction Behaviour Modelling of Metal-Ceramic Powder Mixtures. A Review. Scientific Bulletin of Valahia University - Materials and Mechanics 2018, 16, 28 -37.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu. Compaction Behaviour Modelling of Metal-Ceramic Powder Mixtures. A Review. Scientific Bulletin of Valahia University - Materials and Mechanics. 2018; 16 (14):28-37.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu. 2018. "Compaction Behaviour Modelling of Metal-Ceramic Powder Mixtures. A Review." Scientific Bulletin of Valahia University - Materials and Mechanics 16, no. 14: 28-37.

Journal article
Published: 01 April 2018 in Scientific Bulletin of Valahia University - Materials and Mechanics
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The basic purpose of compaction is to obtain a green compact with sufficient strength to withstand further handling operations. The strength of green compact is influenced by the characteristics of the powders (apparent density, particle size and shape, internal pores etc.), the processing parameters (applied force, pressing type, and temperature) and testing conditions (strain rate etc.) Successful powder cold compaction is determined by the densification and structural transformations of powders (metallic powders, ceramic powders and metal-ceramic powder mixtures) during the compaction stages. In this paper, for understanding the factors that determine a required strength of compacted metal-ceramic powder mixtures, we present the densification mechanisms of different mixtures according to densification theories of compaction, the elastic-plastic deformations of mixture powders, the stressstrain relations and the relaxation behavior of compacted metal-ceramic composite parts and the particularities of each of them.

ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu. Densification Mechanism, Elastic-Plastic Deformations and Stress-Strain Relations of Compacted Metal-Ceramic Powder Mixtures (Review). Scientific Bulletin of Valahia University - Materials and Mechanics 2018, 16, 7 -12.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu. Densification Mechanism, Elastic-Plastic Deformations and Stress-Strain Relations of Compacted Metal-Ceramic Powder Mixtures (Review). Scientific Bulletin of Valahia University - Materials and Mechanics. 2018; 16 (14):7-12.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu. 2018. "Densification Mechanism, Elastic-Plastic Deformations and Stress-Strain Relations of Compacted Metal-Ceramic Powder Mixtures (Review)." Scientific Bulletin of Valahia University - Materials and Mechanics 16, no. 14: 7-12.

Journal article
Published: 01 October 2017 in Scientific Bulletin of Valahia University - Materials and Mechanics
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Over the last few decades, researchers has been focused on the study of processing using different methods of new biocompatible and/or biodegradable materials such as permanent or temporary medical implants in reconstructive surgery. The advantages of obtaining biomedical implants by Powder Metallurgy (P/M) techniques are (i) obtaining the near-net-shaped with complex forms, (ii) making materials with controlled porosity or (iii) making mechanically resistant sintered metallic materials used as reinforcing elements for ceramic/polymeric biocompatible materials. In this first part of the 2-part review, the most used and newest metallic biomaterials obtained by P/M methods are presented, along with their compaction and sintering behavior and the properties of the porous biomaterials studied in correlation with the biomedical domain of application.

ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu; Vasile Bratu. Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications. Scientific Bulletin of Valahia University - Materials and Mechanics 2017, 15, 28 -40.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu, Vasile Bratu. Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications. Scientific Bulletin of Valahia University - Materials and Mechanics. 2017; 15 (13):28-40.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu; Vasile Bratu. 2017. "Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications." Scientific Bulletin of Valahia University - Materials and Mechanics 15, no. 13: 28-40.

Journal article
Published: 15 August 2017 in Journal of the American Romanian Academy of Arts and Sciences
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ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu; University of California Davis. Compaction of Metal-Ceramic Powder Mixtures. Part.2. Journal of the American Romanian Academy of Arts and Sciences 2017, 1, 58 -64.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu, University of California Davis. Compaction of Metal-Ceramic Powder Mixtures. Part.2. Journal of the American Romanian Academy of Arts and Sciences. 2017; 1 (1):58-64.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu; University of California Davis. 2017. "Compaction of Metal-Ceramic Powder Mixtures. Part.2." Journal of the American Romanian Academy of Arts and Sciences 1, no. 1: 58-64.

Journal article
Published: 15 August 2017 in Journal of the American Romanian Academy of Arts and Sciences
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ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu Vidu. Compaction of Metal-Ceramic Powder Mixture. Part.1. Journal of the American Romanian Academy of Arts and Sciences 2017, 1, 51 -57.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu Vidu. Compaction of Metal-Ceramic Powder Mixture. Part.1. Journal of the American Romanian Academy of Arts and Sciences. 2017; 1 (1):51-57.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu Vidu. 2017. "Compaction of Metal-Ceramic Powder Mixture. Part.1." Journal of the American Romanian Academy of Arts and Sciences 1, no. 1: 51-57.

Journal article
Published: 25 April 2017 in Scientific Bulletin of Valahia University - Materials and Mechanics
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In order to determine the optimum geometry of the ingot mold format (the format of ingot mold with a diameter per height ratio H / D It was considered 205Cr115 steel type (according with , STAS 3611 - Romanian stardandization) and known also as X210Cr12 steel type (according with European standard). It has been considered an element of volume of coordinates x, y, z in the solidifying ingot and have made the following assumptions: (i) the equilibrium distribution ratio K, is applied to the solid-liquid interface; (ii) solid diffusion is negligible during solidification; and (iii) the solid density is constant during solidification. In carrying out the simulation of segregation mechanisms are resolved heat transfer equation, that simulating the solidification process and are are solved the interdendritic fluid equation of motion.

ACS Style

Vasile Bratu; Ileana Nicoleta Popescu. The Mathematical Model Applied to Solidify and Segregation of Ledeburite Tool Steel Ingots. Scientific Bulletin of Valahia University - Materials and Mechanics 2017, 15, 28 -31.

AMA Style

Vasile Bratu, Ileana Nicoleta Popescu. The Mathematical Model Applied to Solidify and Segregation of Ledeburite Tool Steel Ingots. Scientific Bulletin of Valahia University - Materials and Mechanics. 2017; 15 (12):28-31.

Chicago/Turabian Style

Vasile Bratu; Ileana Nicoleta Popescu. 2017. "The Mathematical Model Applied to Solidify and Segregation of Ledeburite Tool Steel Ingots." Scientific Bulletin of Valahia University - Materials and Mechanics 15, no. 12: 28-31.

Journal article
Published: 01 October 2015 in Advanced Materials Research
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Heat treatable aluminum alloys and other alloys with similar properties are the most widely used light alloys in aeronautical construction [1-3]. These alloys have (i) high resistance to crack initiation and propagation, (ii) resistance to developing a strong lift force of the wings, (iii) high temperature, (iv)creep and fatigue vibration resistance. These age hardening Al alloys, are designed to take the mechanical stresses of the aircraft during flight. To achieve and continually improve these characteristics are necessary studies and researches on optimizing the manufacturing technological process of these types of Al alloys. This paper presents theoretical and experimental development of aluminum prealloys and high purity 2xxx Al alloys series elaboration for the aviation industry. We aimed to obtain higher energy efficiency, a better protection against gases, development of melt refining decontamination during casting. We are taking into account that the AlCu3.3Mg1.5Mn alloy has in chemical composition besides the alloying elements also a limited percentage of impurities (eg. 0.15% Si and 0.20% Fe), impurities difficult to remove from molten aluminum. In these conditions, the manufacturing processing requires some precautions such as: cleaning melting furnace and the correct choice of materials composing the charge in order to prevent contamination of the bath. The casted and homogenized Al alloys were analyzed in terms of composition and microstructure.

ACS Style

Vasile Bratu; Ileana Nicoleta Popescu; Elena Valentina Stoian; Dan Nicolae Ungureanu; Carmen Otilia Rusanescu; Lucica Grigora Toma; Adrian Catalin Voicu. Casting and Homogenization of AlCu3.3Mg1.5Mn Alloy for Aircraft Industry. Advanced Materials Research 2015, 1128, 44 -50.

AMA Style

Vasile Bratu, Ileana Nicoleta Popescu, Elena Valentina Stoian, Dan Nicolae Ungureanu, Carmen Otilia Rusanescu, Lucica Grigora Toma, Adrian Catalin Voicu. Casting and Homogenization of AlCu3.3Mg1.5Mn Alloy for Aircraft Industry. Advanced Materials Research. 2015; 1128 ():44-50.

Chicago/Turabian Style

Vasile Bratu; Ileana Nicoleta Popescu; Elena Valentina Stoian; Dan Nicolae Ungureanu; Carmen Otilia Rusanescu; Lucica Grigora Toma; Adrian Catalin Voicu. 2015. "Casting and Homogenization of AlCu3.3Mg1.5Mn Alloy for Aircraft Industry." Advanced Materials Research 1128, no. : 44-50.

Review
Published: 28 July 2015 in Proceedings of the 39th ARA Congress
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ACS Style

Ileana Nicoleta Popescu; Lucica Grigora Toma; Ruxandra Vidu. Composite Materials with Complex Compositions used in Vehicle Brake System: a Review. Proceedings of the 39th ARA Congress 2015, 58 -63.

AMA Style

Ileana Nicoleta Popescu, Lucica Grigora Toma, Ruxandra Vidu. Composite Materials with Complex Compositions used in Vehicle Brake System: a Review. Proceedings of the 39th ARA Congress. 2015; ():58-63.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Lucica Grigora Toma; Ruxandra Vidu. 2015. "Composite Materials with Complex Compositions used in Vehicle Brake System: a Review." Proceedings of the 39th ARA Congress , no. : 58-63.

Journal article
Published: 01 July 2015 in Advanced Materials Research
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This paper presents experimental results revealed on the samples type 2024 aluminum alloy used in aeronautics. The results of microstructural and compositional investigations presented in this paper were performed on samples taken from 2024 Al alloy samples produced by ALRO Slatina. The main objective of the investigation is the conformity assessment of alloys in terms of chemical composition with the specifications type of aviation [SAE AMS 47N, EN 515, etc]. It also aims microstructural conformity assessment in terms of the grain and the hardening effects by natural or artificial aging applied by the manufacturer. Adequate characterization of 2024 aluminum alloys type was achieved by combined investigations: (i) Wet Chemical Analysis, (ii) Spectrochemical Analysis and (iii) Electron Microscopy. The main conclusion that emerges from the investigations carried out on aluminum samples revealed that: (a) alloys fits in terms of composition with the standard specification for 2024, in all cases; (b) microstructure vary in fineness of grain, but meets the requirements of aviation rules; the investigated microstructures have been appreciated as adequate of aluminum alloys type "2024".

ACS Style

Florina Violeta Anghelina; Vasile Bratu; Elena Valentina Stoian; Ileana Nicoleta Popescu. Microstructural Investigation of Aluminum Alloys Type "2024" for the Aviation Industry. Advanced Materials Research 2015, 1114, 62 -67.

AMA Style

Florina Violeta Anghelina, Vasile Bratu, Elena Valentina Stoian, Ileana Nicoleta Popescu. Microstructural Investigation of Aluminum Alloys Type "2024" for the Aviation Industry. Advanced Materials Research. 2015; 1114 ():62-67.

Chicago/Turabian Style

Florina Violeta Anghelina; Vasile Bratu; Elena Valentina Stoian; Ileana Nicoleta Popescu. 2015. "Microstructural Investigation of Aluminum Alloys Type "2024" for the Aviation Industry." Advanced Materials Research 1114, no. : 62-67.

Journal article
Published: 01 July 2015 in Advanced Materials Research
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Rapid developments in telecommunications and digital processing of information are facing the problem of electromagnetic wave pollution and interference. The aim of this article is the characterization at microwave frequencies of composite materials based on silicone rubber. These materials contain 80% siloxane rubber and only 20% powdery feeling like nanocarbon and pyrite cinder. To achieve these objectives were reviewed and selected raw materials and characteristics were determined in a structural material, the electromagnetic attenuation as well as electrically, by making measurements of electrical conductivity of thin layers of polymer matrix composites produced by the doctor blade technique. Starting from sample siloxane rubber, i.e. without additives or filler reinforcement in compression analysis we find that reinforcing agents leads to increased values of the modulus of elasticity in especially for pyrite ashes. For materials analyzed in this paper, measurements were made in the frequency range between (1-18) GHz and have found high attenuation over 45 dB in the case of composite materials with pyrite ash filler. So we can say that this materials can used for shielding against electromagnetic waves in order to protect the human factor. The novelty of the paper consists in the compositions of the specimens and their mechanical and electromagnetic characteristics.

ACS Style

Elena Valentina Stoian; Vasile Bratu; Florina Violeta Anghelina; Ileana Nicoleta Popescu. Composite Materials Based on Silicone Rubber Used to Mitigation Electromagnetic Pollution. Advanced Materials Research 2015, 1114, 76 -80.

AMA Style

Elena Valentina Stoian, Vasile Bratu, Florina Violeta Anghelina, Ileana Nicoleta Popescu. Composite Materials Based on Silicone Rubber Used to Mitigation Electromagnetic Pollution. Advanced Materials Research. 2015; 1114 ():76-80.

Chicago/Turabian Style

Elena Valentina Stoian; Vasile Bratu; Florina Violeta Anghelina; Ileana Nicoleta Popescu. 2015. "Composite Materials Based on Silicone Rubber Used to Mitigation Electromagnetic Pollution." Advanced Materials Research 1114, no. : 76-80.

Journal article
Published: 01 July 2015 in Advanced Materials Research
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For ensuring fuel consumption and pollution reduction, the researches made in the past decades considerable efforts to replacing steel with aluminum alloys in manufacturing auto bodies, or in naval transportation, because the promising weight saving. The researches consisted in general corrosion (the gravimetric index and the corrosion rate, Vcorr) and tensile tests (Rm, Rp0.2 and A5) in correlation with microstructure analysis of heat treated Al-Mg-(Si) system samples alloy, in order to obtain the best corrosion resistance and high mechanical characteristics. The Al alloys in extrusion state were solution treated at 510 – 545oC for 10-60 minutes, quenched in water 30-50o C and artificial aging at 150, 180 and 210°C at different time of aging (1, respectively 3, 7 and 11 hours). After heat treatment the obtained alloys were corroded in solution of 53g NaCl + 1000 ml distilled water and boiled in these solutions for 8, 16 respectively 24 hours. The gravimetric index was determinate by mass loss measurements for all types of heat treatment conditions. After corrosion test, samples were prepared for optical microstructural analyzing and mechanical tested. We have compared the obtained results on Al-Mg and Al-Mg-Si alloys. Were established (i) the optimum heat conditions parameters for obtaining of highest values of mechanical characteristics and corrosion resistance and also (ii) was explained the structural evolution during age (precipitation) hardening for both systems.

ACS Style

Ileana Nicoleta Popescu; Maria Cristiana Enescu; Vasile Bratu; Raluca Ioana Zamfir; Elena Valentina Stoian. Development, Microstructure and Corrosion Resistance of Al-Mg-(Si) Binary and Ternary System Samples in 5.3% NaCl Solution for Applications with Environmental Impact. Advanced Materials Research 2015, 1114, 239 -244.

AMA Style

Ileana Nicoleta Popescu, Maria Cristiana Enescu, Vasile Bratu, Raluca Ioana Zamfir, Elena Valentina Stoian. Development, Microstructure and Corrosion Resistance of Al-Mg-(Si) Binary and Ternary System Samples in 5.3% NaCl Solution for Applications with Environmental Impact. Advanced Materials Research. 2015; 1114 ():239-244.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Maria Cristiana Enescu; Vasile Bratu; Raluca Ioana Zamfir; Elena Valentina Stoian. 2015. "Development, Microstructure and Corrosion Resistance of Al-Mg-(Si) Binary and Ternary System Samples in 5.3% NaCl Solution for Applications with Environmental Impact." Advanced Materials Research 1114, no. : 239-244.

Journal article
Published: 01 August 2014 in Solid State Phenomena
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The purpose of these researches was to determine the effect of silicon carbide particles (SiCp) proportion and the effect of some process parameters (temperatures and times of aging) on characteristics of Al-Cu/SiCp composites obtained by P/M route. The age-hardened composites and un-reinforced alloys solution treated at 515 ± 5°C, maintaining time 360 minutes, quenched in water and artificial aging at 150-190o C during respectively 240-720 minutes/ furnace cooled, were tested from hardness and microstructural point of view. The effect of SiCp proportion in matrix during cold compaction was observed on densification curves of all experimental powders mixtures Al-4Cu/ (5, 10, 15 and 20) wt.%SiC. The composites were analyzed using optical and electron microscopy (including ESEM-Enviromental Scanning Electron Microscopy), in terms of shape and size of grains, pores, ceramic particles, second phases and precipitates.

ACS Style

Ileana Nicoleta Popescu; Ruxandra Vidu; Vasile Bratu; Adrian Bebe Olei; Dan Nicolae Ungureanu; Florina Violeta Anghelina. Effects of Silicon Carbide Proportion and Artificial Aging Parameters on Microstructure and Hardness of Al-Cu/SiCp Composites. Solid State Phenomena 2014, 216, 122 -127.

AMA Style

Ileana Nicoleta Popescu, Ruxandra Vidu, Vasile Bratu, Adrian Bebe Olei, Dan Nicolae Ungureanu, Florina Violeta Anghelina. Effects of Silicon Carbide Proportion and Artificial Aging Parameters on Microstructure and Hardness of Al-Cu/SiCp Composites. Solid State Phenomena. 2014; 216 ():122-127.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Ruxandra Vidu; Vasile Bratu; Adrian Bebe Olei; Dan Nicolae Ungureanu; Florina Violeta Anghelina. 2014. "Effects of Silicon Carbide Proportion and Artificial Aging Parameters on Microstructure and Hardness of Al-Cu/SiCp Composites." Solid State Phenomena 216, no. : 122-127.

Journal article
Published: 01 November 2013 in Applied Surface Science
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ACS Style

Ileana Nicoleta Popescu; Constantin Ghiţă; Vasile Bratu; Guillermo Palacios-Navarro. Tribological behaviour and statistical experimental design of sintered iron–copper based composites. Applied Surface Science 2013, 285, 72 -85.

AMA Style

Ileana Nicoleta Popescu, Constantin Ghiţă, Vasile Bratu, Guillermo Palacios-Navarro. Tribological behaviour and statistical experimental design of sintered iron–copper based composites. Applied Surface Science. 2013; 285 ():72-85.

Chicago/Turabian Style

Ileana Nicoleta Popescu; Constantin Ghiţă; Vasile Bratu; Guillermo Palacios-Navarro. 2013. "Tribological behaviour and statistical experimental design of sintered iron–copper based composites." Applied Surface Science 285, no. : 72-85.