The effects of rare-earth oxide additives on the densification of pressureless sintering B4C ceramics
The effects of rare-earth oxide additives on the densification of pressureless sintering B4C ceramics
复制标题
稀土氧化物添加剂对无压烧结B4C陶瓷致密化的影响
DOI：
10.1016/j.ceramint.2013.01.073
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发表时间：
2013-08-01
影响因子：
5.2
通讯作者：
Zhang, Yan
中科院分区：
文献类型：
--
作者：
Wei, Rubin;Zhang, Yujun;Zhang, Yan
Boron carbide ceramics used as neutron absorbing materials in fast breeder reactor were fabricated with boron carbide powders and different rare-earth oxide additives by pressureless sintering. The effects of rare-earth oxide as well as phenolic resin on densities and mechanical properties of the composites were studied. The addition of Dy2O3, Eu2O3, and Sm2O3 was found to be beneficial in the densification of B4C ceramics. B4C with 4 wt% rare-earth oxide and 18 wt% phenolic resin, exhibiting bulk density of 90-96% T.D., flexural strength of 276-358 MPa, could be prepared by pressureless sintering at 1960-2080 degrees C, which are capable of meeting the requirement of fast breeder reactor. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
