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Preparation method of titanium niobium tantalum carbide continuous solid solution
The invention relates to a controllable (Ti, Nb, Ta) C solid solution micron cuboid preparation method, and belongs to the technical field of ceramic powder preparation. The method is characterized in that TiC, NbC, TaC and Co powder serve as raw materials, carbide and cobalt powder are evenly mixed according to the fixed mass, then the mixture is placed in a mold to be subjected to pre-pressing forming and placed in a tubular furnace to be subjected to heat treatment in the inert gas atmosphere, and after the mixture is cooled to the room temperature, the (Ti, Nb and Ta) C-Co metal ceramic block can be generated. And after the metal matrix is corroded by adopting a nitric acid solution, a product is cleaned and dried, and the (Ti, Nb and Ta) C solid solution is obtained. The method is simple in preparation process, low in equipment requirement and short in period. The prepared (Ti, Nb, Ta) C solid solution presents a micron cuboid morphology, exposes a {100} crystal face, is controllable in component and uniform in element distribution, and has the advantages of high temperature resistance, excellent mechanical property, good chemical stability and good catalytic activity; the method is suitable for the fields of cutting tools, aerospace, nuclear reactors, catalysis and the like.
本发明涉及一种可控的(Ti,Nb,Ta)C固溶体微米长方体的制备方法，属于陶瓷粉体制备技术领域。其特征在于：以TiC、NbC、TaC和Co粉末为原料，碳化物与钴粉按照固定质量混合均匀后，放于模具中预压成型并置于管式炉中在惰性气体氛围下进行热处理，冷却至室温后，即可生成(Ti,Nb,Ta)C‑Co金属陶瓷块体。采用硝酸溶液腐蚀掉金属基体后，将产物进行清洗并干燥，得到(Ti,Nb,Ta)C固溶体。本发明制备工艺简单，对设备要求低，周期短。所制备的(Ti,Nb,Ta)C固溶体呈现微米长方体形貌且暴露{100}晶面，其成分可控且元素分布均匀，具有耐高温，优异的机械性能，化学稳定性好，良好的催化活性；适合用于切削刀具、航空航天、核反应堆和催化等领域。
Preparation method of titanium niobium tantalum carbide continuous solid solution
The invention relates to a controllable (Ti, Nb, Ta) C solid solution micron cuboid preparation method, and belongs to the technical field of ceramic powder preparation. The method is characterized in that TiC, NbC, TaC and Co powder serve as raw materials, carbide and cobalt powder are evenly mixed according to the fixed mass, then the mixture is placed in a mold to be subjected to pre-pressing forming and placed in a tubular furnace to be subjected to heat treatment in the inert gas atmosphere, and after the mixture is cooled to the room temperature, the (Ti, Nb and Ta) C-Co metal ceramic block can be generated. And after the metal matrix is corroded by adopting a nitric acid solution, a product is cleaned and dried, and the (Ti, Nb and Ta) C solid solution is obtained. The method is simple in preparation process, low in equipment requirement and short in period. The prepared (Ti, Nb, Ta) C solid solution presents a micron cuboid morphology, exposes a {100} crystal face, is controllable in component and uniform in element distribution, and has the advantages of high temperature resistance, excellent mechanical property, good chemical stability and good catalytic activity; the method is suitable for the fields of cutting tools, aerospace, nuclear reactors, catalysis and the like.
本发明涉及一种可控的(Ti,Nb,Ta)C固溶体微米长方体的制备方法，属于陶瓷粉体制备技术领域。其特征在于：以TiC、NbC、TaC和Co粉末为原料，碳化物与钴粉按照固定质量混合均匀后，放于模具中预压成型并置于管式炉中在惰性气体氛围下进行热处理，冷却至室温后，即可生成(Ti,Nb,Ta)C‑Co金属陶瓷块体。采用硝酸溶液腐蚀掉金属基体后，将产物进行清洗并干燥，得到(Ti,Nb,Ta)C固溶体。本发明制备工艺简单，对设备要求低，周期短。所制备的(Ti,Nb,Ta)C固溶体呈现微米长方体形貌且暴露{100}晶面，其成分可控且元素分布均匀，具有耐高温，优异的机械性能，化学稳定性好，良好的催化活性；适合用于切削刀具、航空航天、核反应堆和催化等领域。
Preparation method of titanium niobium tantalum carbide continuous solid solution
一种碳化钛铌钽连续固溶体的制备方法
GENG XIN (author) / HAN GE (author) / XU WENZHE (author) / LI JIAO (author) / GENG YIDAN (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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