Synthesis of strontium hexaboride powder by the reaction of strontium carbonate with boron carbide and carbon

The synthesis of SrB6 powder by the reaction of SrCO3 with B4C and carbon is a solid phase process that passes through the transition phases Sr3B2O6 and SrB4O7. A study of the influence of holding time and heating temperature on the synthesis has indicated that the optimal conditions for SrB6 synthe...

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Bibliographic Details
Published in:Journal of materials science letters 2002-02, Vol.21 (4), p.313-315
Main Authors: ZHENG, Shu-Qi, ZOU, Zeng-Da, MIN, Guang-Hui, YU, Hua-Shun, HAN, Jian-De, WANG, Wei-Ti
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
General and physical chemistry
Inorganic chemistry and origins of life
Powders
Preparations and properties
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Summary:The synthesis of SrB6 powder by the reaction of SrCO3 with B4C and carbon is a solid phase process that passes through the transition phases Sr3B2O6 and SrB4O7. A study of the influence of holding time and heating temperature on the synthesis has indicated that the optimal conditions for SrB6 synthesis are a holding time of 2.5 h at 1673 K at 0.01 Pa pressures. The morphology of SrB6 is the same as that of B4C; thus, choosing high-quality B4C is one of the most important ways to improve the properties of SrB6 powder. 6 refs
ISSN:0261-8028
DOI:10.1023/A:1017940307487