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提升方镁石-碳化硅-碳复合粉体内碳化硅合成效果的探索研究

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摘要 为了进一步优化低碳材料性能,通过优化镁碳材料基质结构和优化内部石墨的保护,使材料使用寿命得以提升。本文在采用轻质氧化镁、单质硅粉和鳞片石墨为原料成功制备出MgO-SiC-C复合粉体的基础上,对提升内部原位合成SiC方面进行了一定的对比研究。结果表明:1)在促进复合粉体内抗氧化剂SiC的合成方面,合理地控制成型压力有利于物质交换和SiC的合成。2)显微结构显示,添加剂CuS情况下,合成的原位SiC主要呈片层状或团簇状分布于石墨片周围,分布相对均匀,利于对内部石墨进行抗氧化性能强化。
出处 《江苏陶瓷》 CAS 2016年第5期33-35,共3页 Jiangsu Ceramics
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