Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ZrB2 powder with controllable macro particle size
The invention relates to a preparation method of ZrB2 powder with controllable macro particle size. The method comprises the following steps: (1) weighing reaction materials according to a preset proportion, and adding an inert diluent with a preset content to prepare an initial mixture; (2) uniformly mixing the initial mixture in a ball mill, and then pressing into a cake-shaped blank with the diameter of 80 mm and the height of about 20-50 mm on a press machine; (3) putting the cake-shaped blank into a reaction kettle, putting an ignition agent on a blank body, filling protective gas for gas washing, then filling the protective gas for pressure maintaining, and continuously heating until a self-propagating reaction occurs in a system so as to obtain a black blocky initial product; and (4) crushing the primary product, performing leaching with a hydrochloric acid solution and distilled water, and performing drying in a vacuum drying oven after reaching the purification standard to obtain ZrB2 powder.
一种宏量粒度可控ZrB2粉体的制备方法，其步骤为：步骤（1）将反映物料按预设比例称取，加入预设含量的惰性稀释剂配成初始混合物；步骤（2）将初始混合物置于球磨机中均匀混合，然后在压力机上压成直径为80 mm、高度约20～50 mm饼状坯；步骤（3）将饼状坯放入反应釜中，把引燃剂置于坯体上，充入保护气体洗气后，再充入保护气体保压，继续升温至体系发生自蔓延反应，得到黑色块状初产物；步骤（4）将初产物粉碎后，用盐酸溶液和蒸馏水浸出处理，达到提纯标准后，在真空干燥箱中烘干得到ZrB2粉末。
Preparation method of ZrB2 powder with controllable macro particle size
The invention relates to a preparation method of ZrB2 powder with controllable macro particle size. The method comprises the following steps: (1) weighing reaction materials according to a preset proportion, and adding an inert diluent with a preset content to prepare an initial mixture; (2) uniformly mixing the initial mixture in a ball mill, and then pressing into a cake-shaped blank with the diameter of 80 mm and the height of about 20-50 mm on a press machine; (3) putting the cake-shaped blank into a reaction kettle, putting an ignition agent on a blank body, filling protective gas for gas washing, then filling the protective gas for pressure maintaining, and continuously heating until a self-propagating reaction occurs in a system so as to obtain a black blocky initial product; and (4) crushing the primary product, performing leaching with a hydrochloric acid solution and distilled water, and performing drying in a vacuum drying oven after reaching the purification standard to obtain ZrB2 powder.
一种宏量粒度可控ZrB2粉体的制备方法，其步骤为：步骤（1）将反映物料按预设比例称取，加入预设含量的惰性稀释剂配成初始混合物；步骤（2）将初始混合物置于球磨机中均匀混合，然后在压力机上压成直径为80 mm、高度约20～50 mm饼状坯；步骤（3）将饼状坯放入反应釜中，把引燃剂置于坯体上，充入保护气体洗气后，再充入保护气体保压，继续升温至体系发生自蔓延反应，得到黑色块状初产物；步骤（4）将初产物粉碎后，用盐酸溶液和蒸馏水浸出处理，达到提纯标准后，在真空干燥箱中烘干得到ZrB2粉末。
Preparation method of ZrB2 powder with controllable macro particle size
一种宏量粒度可控ZrB2粉体的制备方法
LA PEIQING (Autor:in) / XU KE (Autor:in) / ZHAN FAQI (Autor:in) / ZHANG HUA (Autor:in) / WU HAOKAI (Autor:in) / ZHU MIN (Autor:in) / ZHENG YUEHONG (Autor:in)
30.07.2021
Patent
Elektronische Ressource
Chinesisch
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