Optimization of the Carbosilicothermic Synthesis of the Ti4SiC3 MAX Phase

被引：0
|
作者：
E. I. Istomina
P. V. Istomin
A. V. Nadutkin
V. E. Grass
A. S. Bogdanova
机构：
[1] Russian Academy of Sciences,Institute of Chemistry, Komi Scientific Center, Ural Branch
[2] Syktyvkar State University,undefined
来源：
Inorganic Materials | 2018年 / 54卷
关键词：
MAX phase; Ti; SiC; Ti; SiC; titanium dioxide; TiC; carbothermic reduction; silicothermic reduction;
D O I：
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学科分类号：
摘要：
We have studied the formation of the Ti4SiC3 MAX phase during the vacuum carbosilicothermic reduction of TiO2 with a combined reducing agent consisting of SiC and elemental Si and analyzed the effects of the synthesis temperature, heat treatment time, and percentage of elemental silicon in the starting mixture on the Ti4SiC3 yield. Optimal Ti4SiC3 synthesis conditions are as follows: temperature from 1550 to 1650°C, isothermal holding time of 360 min, and the starting-mixture composition TiO2 + 1.2SiC + 0.6Si. The Ti4SiC3 yield then reaches 92 wt %.
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页码：528 / 536
页数：8
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