Thermal barrier coating is critical for thermal insulation technology, making the underlying base metal capable of operating at a melting temperature of 1150 °C. By increasing the temperature of incoming gases, engineers can improve the thermal and mechanical performance of gas turbine blades and the piston cylinder arrangement. Recent developments in the field of thermal barrier coatings (TBCs) have made this material suitable for use in a variety of fields, including the aerospace and diesel engine industries. Changes in the turbine blade microstructure brought on by its operating environment determine how long and reliable it will be. In addition, the effectiveness of multi-layer, composite and functionally graded coatings depends heavily on the deposition procedures used to create them. This research aims to clarify the connection between workplace conditions, coating morphology and application methods. This article presents a high-level overview of the many coating processes and design procedures employed for TBCs to enhance the coating’s surface quality. To that end, this review is primarily concerned with the cultivation, processing and characteristics of engineered TBCs that have aided in the creation of specialized coatings for use in industrial settings.

Laser sintering is a newly well established additive manufacturing technique, which has higher capabilities to produce complex shapes models/parts in a short time period. In this technique, a solid model is directly produced according to computer aided design model, by fusing two adjacent layers together, with the interaction of laser light. These parts are widely used in industries like aerospace and automobile and for medical applications as well. This paper reviews the selective laser sintering process and its research progress with the use of metallic powders. The main focus of whole available research progress is to produce complex shape solid model/parts using different metallic materials having the desired mechanical as well as dimensional properties.