Synthesis of W2B5 powders by the reaction between WO3 and amorphous B in NaCl/KCl flux. Issue 10 (July 2020)

• Record Type: Journal Article
• Authors: Dai, Bing; Ding, Xiang; Deng, Xiangong; Zhu, Jianhua; Ran, Songlin
• Is Part Of: Ceramics international. Volume 46:Issue 10(2020)Part A
• Page Start: 14469
• Page End: 14473
• Publication Date: 2020-07
• Subjects: Tungsten pentoxide (W2B5) -- Borothermal reduction -- Molten salt method -- Oxidation; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.02.244
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: W2 B5 powder was synthesized by the reaction between WO3 and amorphous B in NaCl/KCl flux. The results indicate that appropriate amount of NaCl/KCl flux significantly improved the completion of borothermal reduction reaction. When the weight of NaCl/KCl was 10 times that of WO3 /B, pure phase W2 B5 powder could be obtained at 1100 °C. The synthesized powder was composed of agglomerated nanosized particles. The oxidation resistance of the synthesized W2 B5 powder was evaluated by a simultaneous thermogravimetric and differential scanning calorimetry technique.