Thermal shock behavior of a nanolaminated ternary boride: MoAlB
Thermal shock behavior of a nanolaminated ternary boride: MoAlB
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纳米层压三元硼化物：MoAlB 的热冲击行为
DOI：
10.1016/j.ceramint.2018.08.071
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发表时间：
2019-05-01
影响因子：
5.2
通讯作者：
Zhou, Yang
中科院分区：
文献类型：
--
作者：
Lu, Xiaogang;Li, Shibo;Zhou, Yang
MoAlB has been the only known compound with attractive oxidation resistance in the MAB family so far. To widen the application of the MoAlB material in high temperature environments where temperature change is abrupt, the investigation of its thermal shock behavior is required. A dense MoAlB material was prepared by hot pressing of Mo, Al and B elemental powders at 1200 degrees C with 25 MPa for 1 h in Ar atmosphere. Thermal shock resistance of the synthesized MoAlB material was investigated by quenching in water from various temperatures. The residual strength of MoAlB showed a slow decrease trend after quenching from 600 degrees C to 1400 degrees C. The MoAlB material exhibits better thermal shock resistance than another MAB phase of Fe2AlB2. X-ray diffractometry was used to identify the phase composition, and scanning electron microscopy was adopted to characterize the microstructure.
