Conferences

Structure of Si3N4–Y2O3–Al2O3 and TiN–AlN Composites Consolidated in Microwaves (2.45 GHz)

 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2015, #01/02
http://www.materials.kiev.ua/article/1892

Abstract

The consolidation of nanocomposite powders of refractory nitrides (TiN, Si3N4, AlN) in the microwave field (2.45 GHz) is studied. The structurization in sintered samples with the length-to-height (width) ratio l/h >>5 is examined. The structure and properties of composites consolidated by microwave and conventional (resistance) heating are compared. The use of microwaves for sintering of bulk parts from Si3N4–Y2O3–Al2O3 and TiN–AlN nanocomposites with a great l/h ratio revealed a number of issues in producing homogenous nanoceramics.


ALN, MICROWAVE SINTERING, SI3N4, STRUCTURE, TIN