Rapid synthesis of MoAlB ceramic via thermal explosion

Autor: Baoyan Liang, Zhen Dai, Wangxi Zhang, Qisong Li, Dongming Niu, Mingli Jiao, Li Yang, Xiaoyan Guan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Materials Research and Technology, Vol 14, Iss , Pp 2954-2961 (2021)
Druh dokumentu: article
ISSN: 2238-7854
DOI: 10.1016/j.jmrt.2021.08.121
Popis: Ceramics with high MoAlB content were rapidly synthesized via thermal explosion by using Mo/Al/B mixed powders as the raw materials. The effects of raw material ratio and heating mode on the phase composition of the products were studied through DSC, X-ray polycrystalline diffractometer, and SEM. Results showed that ceramics with high MoAlB contents could be prepared from 1.1Mo/1.2Al/1.05B powders by using a tubular furnace at 800 °C for 1 min. They could also be obtained from 1.1Mo/1.1Al/1B powders through spark plasma sintering at 1000 °C without holding. Finally, the reaction mechanism of MoAlB material synthesis via thermal explosion was proposed on the basis of thermodynamics analysis.
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