自蔓延制备高纯二硅化钼粉体  

Synthesis of Pure Molybdenum Disilicide by Self-Propagating Combustion Method

作　　者：张红波[1,2] 王刚[1] 郜剑英 周继伟[1] 周军[1] 梁辉[2] 

机构地区：[1]中钢集团洛阳耐火材料研究院,河南洛阳471039 [2]天津大学天津大学先进陶瓷与加工技术教育部重点实验,天津300072 [3]上海硅酸盐研究所,上海200050

出　　处：《稀有金属材料与工程》2008年第A01期686-688,共3页Rare Metal Materials and Engineering

摘　　要：研究了利用化学炉自蔓延合成方法合成高纯二硅化钼粉体,以点燃的C和Ti粉混合物为化学炉,以NH_4Cl作为添加剂,成功的合成出高纯二硅化钼粉体。所得合成产物经XRD、XRF和SEM分析结果表明,添加有NH_4Cl的化学炉方法自蔓延合成出的二硅化钼粉体较常规自蔓延合成方法合成出的粉体,纯度高、杂质含量少,且粒度细、均匀。Highly pure molybdenum disilicide was prepared using the ＂chemical oven＂ enhanced self-propagating combustion method. The mixtures of Si and Ti poders were ignited as the chemical oven, and ammonium chloride was used as the additive. The compostion of product was analyzed by X-ray diffraction （XRD） and X-fluorescence analysis. The molybdenum disilicide product was in single phase with trace impurities. Scanning electron microscopy （SEM） showed the product was homogeneous and finer in particle sizes comparing to the product by normal SHS method.

关 键 词：自蔓延高温合成 二硅化钼 化学炉 

分 类 号：TQ136[化学工程—无机化工]