Lanthanum Hexaboride Production by Borothermal Reduction – an Investigation

被引:0
作者
E. N. Kablov
N. E. Shchegoleva
Yu. E. Lebedeva
P. L. Zhuravleva
M. L. Vaganova
A. S. Chainikova
机构
[1] All-Russian Research Institute at National Research Center Kurchatov Institute (NRC Kurchatov Institute – VIAM),
来源
Glass and Ceramics | 2023年 / 80卷
关键词
lanthanum hexaboride; rare-earth metal borides; spark plasma sintering; boride synthesis; borothermal reduction; carbothermal reduction;
D O I
暂无
中图分类号
学科分类号
摘要
The processes involved in obtaining lanthanum hexaboride by boron thermal reduction using heat-treatment in a vacuum furnace and spark plasma sintering were investigated. Single-phase powder of lanthanum hexaboride was obtained at 1800 – 1900°C with excess boron content in the batch mix equal to 20 wt%. Spark plasma sintering allows the synthesis temperature of the single-phase lanthanum hexaboride powder to be lowered to 1700 and 1600°C with excess boron content 10 and 20 wt.%, respectively, in the batch.
引用
收藏
页码:58 / 69
页数:11
相关论文
共 30 条
  • [1] Chukhvantsev DO(2021)Synthesis of lanthanum hexaboride in chloride-oxide melt Neorg. Mater. 57 16-21
  • [2] Filatov ES(2019)Investigation of the structural-phase state of lanthanum hexaboride based ceramic material Glass Ceram. 76 410-414
  • [3] Shurov NI(1998)Oriented structure and crystallography of directionally solidified LaB J. Am. Ceram. Soc. 81 237-240
  • [4] Rozhentsev DA(2019)–ZrB J. Mater. RES Technol. 8 6321-6335
  • [5] Kablov EN(2019) eutectic J. Solid State Chem. 276 238-243
  • [6] Movenko DA(2014)Hexaborides: a review of structure, synthesis and processing J. Eurp. Ceram. Soc. 34 1155-1160
  • [7] Lukina EA(2012)Low temperature synthesis and characterization of pure lanthanum hexaboride nanocrystals J. Solid State Chem. 194 173-178
  • [8] Chen C-M(1978)Synthesis, densification and oxidation study of lanthanum hexaboride Surf. Technol. 7 137-143
  • [9] Zhou W-C(2018)Novel borothermal route for the synthesis of lanthanum cerium hexaborides and their field emission properties J. Cryst. Growth 486 60-65
  • [10] Zhang L-T(2011)Cathodic Behavior in the Electrodeposition of LaB Trans. Nonfer. Met. Soc. China 21 1790-1794