化工进展2017，Vol.36Issue(z1)：319-325,7.DOI:10.16085/j.issn.1000-6613.2017-0931
核用富集硼-10碳化硼的制备
Preparation of 10 B-enriched boron carbide applied in nuclear industry
赵晶 1周文辉 1刘念 1胡石林1
作者信息
- 1. 中国原子能科学研究院,北京 102413
- 折叠
摘要
Abstract
Boron-10 has a large thermal neutron absorption cross-section. Therefore,boron-10 carbide (10 B4 C ) has some important applications in nuclear industry because of its good mechanical properties, excellent oxidation, corrosion resistances and more superior thermal neutron absorption characteristics. Unlike the natural abundance boron carbide (B4C),the preparation of 10B4C takes the boron-10trifluoride (10BF3)obtained by boron isotope separation as the starting material. This paper summarizes a number of process routes for preparation of intermediate material (boric acid,boron oxide,boron powders)from boron trifluoride and the preparation of boron carbide through the carbothermic reduction, organic sol-gel, magnesiothermic reduction and direct synthesis. By analyzing the characteristics of the routes mentioned above,it is suggested that three routes of boron carbide prepared by direct cracking of trimethyl borate, trialkyl boron and borane. Last, the paper analyzes and compares the characteristics and research progress of these three direct pyrolysis routes,discusses the efficient and economical preparation routes of boron-10 carbide.关键词
富集硼-10碳化硼/富集硼-10三氟化硼/硼酸三甲酯/三烷基硼/硼烷Key words
boric-10 carbide/boron-10trifluoride/trimethyl borate/trialkyl boron/borane分类
化学化工引用本文复制引用
赵晶,周文辉,刘念,胡石林..核用富集硼-10碳化硼的制备[J].化工进展,2017,36(z1):319-325,7.
