Dr. Adrian Boyd
Ulster University
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20Years (2007-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 January 2015 in Materials Science and Engineering: C
Journal Article
Journal Article
KRKrzysztof Rodzeń
Krzysztof Rodzeń
Preetam Sharma
Alistair T. McIlhaggerMMMozaffar Mokhtari
Mozaffar Mokhtari
Foram DaveAdrian Boyd +3
The manufacture of polyetheretherketone/hydroxyapatite (PEEK/HA) composites is seen as a viable approach to help enhance direct bone apposition in orthopaedic implants. A range of methods have been used to produce composites, including Selective Laser Sintering and injection moulding. Such techniques have drawbacks and lack flexibility to manufacture complex, custom-designed implants. 3D printing gets around many of the restraints and provides new opportunities for innovative solutions that are structurally suited to meet the needs of the patient. This work reports the direct 3D printing of extruded PEEK/HA composite filaments via a Fused Filament Fabrication (FFF) approach. In this work samples are 3D printed by a custom modified commercial printer Ultimaker 2+ (UM2+). SEM-EDX and µCT analyses show that HA particles are evenly distributed throughout the bulk and across the surface of the native 3D printed samples, with XRD highlighting up to 50% crystallinity and crystalline domains clearly observed in SEM and HR-TEM analyses. This highlights the favourable temperature conditions during 3D printing. The yield stress and ultimate tensile strength obtained for all the samples are comparable to human femoral cortical bone. The results show how FFF 3D printing of PEEK/HA composites up to 30 wt% HA can be achieved.
14 February 2017 in Journal of Materials Science: Materials in Medicine
Journal Article
LRL. Robinson
L. Robinson
KSK. Salma-Ancane
K. Salma-Ancane
LSLiga Stipniece
Liga StipnieceBMB. J. Meenan
B. J. Meenan
Adrian Boyd1 May 2019 in Applied Surface Science
Journal Article
CRCalvin Ralph
Calvin RalphPLPatrick Lemoine
Patrick Lemoine
Adrian BoydEAEdward Archer
Edward Archer
AMAlistair McIlhagger
Alistair McIlhagger
2 March 2023 in Macromolecular Materials and Engineering
Journal Article
KRKrzysztof Rodzeń
Krzysztof Rodzeń
AMAlistair McIlhagger
Alistair McIlhagger
BSBeata Strachota
Beata Strachota
ASAdam Strachota
Adam Strachota
BMBrian J. Meenan
Brian J. Meenan
Adrian BoydControlling the crystallization of advanced, high‐performance polymeric materials during 3D printing is critical to ensure that the resulting structures have appropriate mechanical properties. In this work, two grades of polyetherketoneketone (PEKK 6002 and PEKK 7002) are used to print 3D specimens via a fused filament fabrication process. The samples are compared with polyetheretherketone printed under the same conditions. Two approaches for controlling the crystallization process are undertaken. The first involves adjustment of the chamber temperature between room temperature and 190 °C to create two regions where crystallization is governed by the slow diffusion process and elevated by limiting the nucleation process. The second approach involves selection of PEKK materials with varying crystallization kinetics, namely. Application of this method into 3D‐printing process allows for printing semicrystalline materials with tailored mechanical, thermal, and chemical properties as either amorphous or in situ crystallized products. The studies undertaken here provide the basis to eliminate expensive and time‐consuming post‐processing of 3D fabricated parts. In particular, solutions for the avoidance of poor adhesion to the building plate and weak interlayer adhesion that can lead to warping are described. The materials are divided into three groups, slow, moderate, and too fast crystallization kinetics.
29 January 2015 in Journal of Materials Science: Materials in Medicine
Journal Article
Adrian BoydLRL. Rutledge
L. Rutledge
LRL. D. Randolph
L. D. Randolph
Isha MutrejaBMB. J. Meenan
B. J. Meenan
About Me
Dr. Adrian Boyd was appointed as a Senior Lecturer in Biomaterials in 2011 at Ulster University and has research interests in calcium phosphate biomaterials, sputter deposited calcium phosphate coatings, resorbable magnesium alloys and additive manufacturing. Adrian was awarded his primary degree in Applied Biochemical Sciences in 1996 from The Faculty of Science (Ulster University) and then received his PhD in Biomaterials Science from the Faculty of Computing and Engineering (Ulster University) in 2000. He spent a period in Industry working on the development of Raman spectrometers with Avalon Instruments before returning to Ulster University in 2003. He is a leading member of the Biomaterials, interfaces and Tissue Engineering (BITE) Research Cluster within the Nanotechnology and Integrated Bioengineering Centre (NIBEC), part of the School of Engineering at Ulster University. He is currently treasurer and a council member of the UK Society for Biomaterials (UKSB), He is also a full Member of the Royal Society of Chemistry (MRSC), a fellow of the Higher Education Academy (FHEA) and a past president, secretary and treasurer of the Northern Ireland Biomedical Engineering Society (NIBES). Recent funded work is in the area of 3D printing of high temperature thermoplastics, 3D Bioprinting for Cardiac Tissue, the coating of resorbable magnesium alloys for orthopaedics and the development of biomedical sensors. He has extensive experience in XPS, ToFSIMS, FTIR, Raman and XRD.