摘要
利用不同原料粉末制备钨坩埚样品,并于高温环境下进行应用模拟实验。结果表明,射流分级预处理有助于提升钨坩埚组织均匀性及整体性能;以费氏粒度3.0~3.5μm的钨粉为原料,经射流分级、压制、烧结等工艺,可制得密度较高(18.770 g·cm^(-3))、维氏硬度较高(HV_(0.3)372.15)的钨制品;将该钨坩埚置于高温环境下进行模拟应用验证,其密度及微观形貌较为稳定,变化较小。
The tungsten crucible samples were prepared by using the different tungsten powders,and the application simulation experiment was carried out in high temperature environment.The results show that,the jet grading pretreatment technology is an efficient process to improve the qualities of the tungsten crucible.The tungsten products with high density(18.770 g·cm^(−3))and high Vickers hardness(HV0.3372.15)are prepared by jet grading,pressing,and sintering,using the tungsten powders with the Feller size of 3.0~3.5μm as the raw materials.Meanwhile,the simulation application of tungsten crucibles is verified in the high temperature environment,which shows that the density and microstructure are stable.
作者
张宇晴
王芦燕
刘山宇
李曹兵
ZHANG Yu-qing;WANG Lu-yan;LIU Shan-yu;LI Cao-bing(BGRIMM Technology Group,Beijing 100160,China;BGRIMM Advanced Materials Science&Technology Co.,Ltd.,Beijing 102206,China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts,Beijing 102206,China)
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2021年第3期258-262,共5页
Powder Metallurgy Technology
基金
国家重点研发计划专项资助项目(2017YFB0305600)。
关键词
钨坩埚
预处理
制备技术
高温应用
tungsten crucible
pretreatment
preparation technology
high temperature application
