基本信息:
- 专利标题： 一种以La2O3改性的B4C陶瓷块体的快速制备方法
- 专利标题（英）：Rapid preparation method of La2O3 modified B4C ceramic blocks
- 申请号：CN201910599368.7 申请日：2019-07-04
- 公开(公告)号：CN110330342A 公开(公告)日：2019-10-15
- 发明人： 张朝晖 , 程兴旺 , 宋奇 , 尹仕攀 , 胡正阳 , 王浩
- 申请人： 北京理工大学
- 申请人地址： 北京市海淀区中关村南大街5号
- 专利权人： 北京理工大学
- 当前专利权人： 北京理工大学
- 当前专利权人地址： 北京市海淀区中关村南大街5号
- 代理机构： 北京理工大学专利中心
- 代理人： 周蜜
- 主分类号： C04B35/563
- IPC分类号： C04B35/563 ; C04B35/622 ; C04B35/64
The invention relates to a rapid preparation method of La2O3 modified B4C ceramic blocks, and belongs to the field of armoring protection material preparation. The preparation method comprises following steps: B4C, Ti3SiC2, Si, and La2O3 powder are subjected to ball milling uniform mixing, a spark plasma sintering system is adopted for sintering so as to obtain the ceramic blocks. In the step of spark plasma sintering, an adopted electric field is capable of cleaning and activating the particle surfaces of the obtained mixed powder in sintering process, so that mixed powder densification is carried out at a relatively low sintering temperature, sintering time is shortened greatly, the density of the B4C ceramic blocks obtained through sintering is as high as 99.9%, a second phase is generated, the comprehensive mechanical performance is excellent, the bending strength is as high as 508.6MPa, and the La2O3 modified B4C ceramic blocks can be used in the field of protective materials.
公开/授权文献:
- CN110330342B 一种以La2O3改性的B4C陶瓷块体的快速制备方法 公开/授权日：2022-02-15