摘要
二硼化锆材料可广泛应用于高温结构陶瓷、复合材料、电极材料、薄膜材料、耐火材料、核控制材料等领域,但二硼化锆粉体目前多为实验室合成,本工作进行了二硼化锆粉体的工业合成研究。以ZrO2、B4C、C为原料采用碳热还原法分别在真空感应炉和电弧炉中完成了二硼化锆粉体的工业合成,研究了工业合成二硼化锆粉体的反应过程、产物组成和结构以及工艺影响因素,结果表明:以ZrO2、B4C、C为原料采用碳热还原法工业合成二硼化锆粉体工艺路线可行,产品质量好,二硼化锆粉体纯度>98%(质量百分比,下同),粉体粒度为1～4μm。
ZrB2 （zirconium diboride ） has many applications in the field of Ultra-high-temperature ceramics （UHTCs）, composite materials, electrode materials, thin-film materials, refractory, nuclear control materials, etc. However, the ZrB2 powders are synthesised mainly in laboratories. Synthesis of ZrB2 powders in industry was investigated in this article. The industrial synthesis of ZrB2 powders have been carried out by the carbothermic reduction process using ZrO2, B4 C and carbon as raw materials in vacuum induction furnace and arc furnace respectively. The reaction process, product composition, product morphology and technology influencing factors of ZrB2 powders by industrial synthesis were investigated. The results show that the ZrB2 powder by the carbothermic reduction process with ZrO2, B4 C and carbon can be a prospective industrial synthesis process, with a high purity of 〉 98% and the particle sizeranging in 1-4 μm.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2008年第3期622-625,共4页
Bulletin of the Chinese Ceramic Society
关键词
二硼化锆粉体
碳热还原
工业合成
ZrB2 powders
carbothermic reduction
industrial synthesis
