Synthesis and Microstructure of TiN-AlN Composite Powder by Mechanical Alloying

Abstract

SYNOPSISHigh energy ball milling technique is often used in synthesizing ceramic composites. In this study, in order to obtain ultrafine TiN-AlN composite powder, which can be expected to improve the sinterability, mechanical alloying was employed, using AlN, Ti powders and ammonium carbonate as starting materials. The presence of nano-sized TiN was verified by XRD and TEM.

Synthesis of AlN–TiN nanostructured composite powder by reactive ball milling and subsequent thermal treatment

“…In recent years, AlN-TiN composites have been exciting more interests in the field of wear-resistant components because the mechanical properties, such as hardness, fracture toughness and friction coefficients which are superior to those of either AlN or TiN single-phase ceramic [27][28][29]. There are several research works on the interfacial reaction between Ti and AlN but much of them concentrate on studies in the formation of coating [30][31][32][33][34][35].…”