文章基本信息

标题：SYNTHESIS AND CHARACTERIZATION OF TisSiCi BASED COMPOSITE
本地全文：下载
作者：Ahmet Atasoy
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2017
卷号：26
期号：8
页码：5163-5169
语种：English
出版社：PSP Publishing
摘要：The MAX phases are very important materials combine the merits of ceramic and metal including high electrical and thermal conductivities, machina-bility, damage tolerance, excellent thermal shock resistance, promising for wide range of applications. There are more than ten MAX phase systems and more than fifty MAX phases. This work is focused to produce Ti3SiC2-Al2〇3 composite using SiC, TiO2, Al powder with graphite. On the DTA curve of the mixture showed two exothermic peaks at temperature 970 and 1250 〇C which were related with the reduction of the oxide content by Al and the formation of TiC phases. Al2O3, TiC and Ti3SiC2 phases were detected in the sintered samples at temperature above 1400 〇C. At higher temperature and longer reaction time, SiC decomposes depending on the oxygen availability of the mixtures. The aluminium to titanium dioxide ratio should be in stoichiometric but carbon content of the starting composition requires more than two times, in Al excess, mullite phase was detected in the processed samples.
关键词：Formation MAX phase ceramic;aluminothermic reaction;SiC