Article ID Journal Published Year Pages File Type
1659013 Surface and Coatings Technology 2010 6 Pages PDF
Abstract
Highly accelerated powder particles obtained by low-frequency pulsed detonation spraying (LFPDS), high-frequency pulsed detonation spraying (HFPDS), and high-current pulsed plasma spraying (HCPPS) were applied with the aim to deposit dense protective silicon nitride coatings that adhere well to steel and nickel superalloy surfaces. The silicon nitride-based feedstock powders comprise α-silicon nitride with sintering additives such as alumina, yttria and minor amounts of aluminum nitride and/or silica and magnesia. Coatings were characterized by testing their critical wear path length, tensile adhesion strength, microindentation hardness, salt-spray corrosion and thermoshock resistances, and friction coefficient (pin-on-disk).
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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