Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of nano carbide powder
The invention discloses a preparation method and application of nano carbide powder. The preparation method comprises the following steps: by taking metal salt and carbon black as raw materials, a fused salt reducing medium and magnesium powder as a reducing agent, uniformly mixing the raw materials in a dry manner, filling the mixture into a graphite crucible with a cover, and putting the graphite crucible into an atmosphere furnace to synthesize the nano carbide powder at low temperature in a flowing inert atmosphere. The method disclosed by the invention is simple, does not need to depend on special equipment, and is low in synthesis temperature and easy in process condition control; the prepared carbide powder has the particle size of 10-100nm, the average particle size of 40nm, the purity of more than 98% and the specific surface area of more than 41m < 2 >/g. The prepared carbide powder can be used for powder metallurgy, cutting tools, fine ceramics, chemical vapor deposition, hard wear-resistant alloy cutters, tools, molds and wear-resistant and corrosion-resistant structural component additives, and the toughness of the alloy is improved.
本发明公开了一种纳米碳化物粉末的制备方法及其应用。该制备方法以金属盐、炭黑为原料，以熔盐还原介质，以镁粉为还原剂，将原料干混合均匀后装入带盖的石墨坩埚内，置于气氛炉内在流动的惰性气氛下低温合成纳米碳化物粉体。本发明方法简单，无需依赖特殊装备，合成温度低，工艺条件易于控制，所制备的碳化物粉末粒径为10～100nm，平均粒径40nm，纯度＞98％，比表面积＞41m2/g。本发明所制备的碳化物粉体可用于粉末冶金、切削工具、精细陶瓷、化学气相沉积、硬质耐磨合金刀具、工具、模具和耐磨耐蚀结构部件添加剂，提高合金的韧性。
Preparation method and application of nano carbide powder
The invention discloses a preparation method and application of nano carbide powder. The preparation method comprises the following steps: by taking metal salt and carbon black as raw materials, a fused salt reducing medium and magnesium powder as a reducing agent, uniformly mixing the raw materials in a dry manner, filling the mixture into a graphite crucible with a cover, and putting the graphite crucible into an atmosphere furnace to synthesize the nano carbide powder at low temperature in a flowing inert atmosphere. The method disclosed by the invention is simple, does not need to depend on special equipment, and is low in synthesis temperature and easy in process condition control; the prepared carbide powder has the particle size of 10-100nm, the average particle size of 40nm, the purity of more than 98% and the specific surface area of more than 41m < 2 >/g. The prepared carbide powder can be used for powder metallurgy, cutting tools, fine ceramics, chemical vapor deposition, hard wear-resistant alloy cutters, tools, molds and wear-resistant and corrosion-resistant structural component additives, and the toughness of the alloy is improved.
本发明公开了一种纳米碳化物粉末的制备方法及其应用。该制备方法以金属盐、炭黑为原料，以熔盐还原介质，以镁粉为还原剂，将原料干混合均匀后装入带盖的石墨坩埚内，置于气氛炉内在流动的惰性气氛下低温合成纳米碳化物粉体。本发明方法简单，无需依赖特殊装备，合成温度低，工艺条件易于控制，所制备的碳化物粉末粒径为10～100nm，平均粒径40nm，纯度＞98％，比表面积＞41m2/g。本发明所制备的碳化物粉体可用于粉末冶金、切削工具、精细陶瓷、化学气相沉积、硬质耐磨合金刀具、工具、模具和耐磨耐蚀结构部件添加剂，提高合金的韧性。
Preparation method and application of nano carbide powder
一种纳米碳化物粉末的制备方法及其应用
LI XINGYU (Autor:in) / GUO CHENGUANG (Autor:in) / ZHANG LIN (Autor:in) / QU XUANHUI (Autor:in) / QIN MINGLI (Autor:in) / WU HAOYANG (Autor:in) / ZHANG PENG (Autor:in) / QUE ZHONGYOU (Autor:in) / WEI ZICHEN (Autor:in) / LIU JUNMING (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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