期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 38, 期 2, 页码 371-389出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2017.09.012
关键词
Transition metal diborides; UHTCs; Microstructure tailoring; Texture; Self-reinforced
资金
- National Natural Science Foundation of China [51611140121, 51532009, 51702341]
- Chinese Academy of Sciences Innovative Funding [CXJJ-17-M169]
- CAS Pioneer Hundred Talents Program
- JSPS [15H04163]
- Grants-in-Aid for Scientific Research [15H04163] Funding Source: KAKEN
This is the first comprehensive review on inherent anisotropic features of transition metal diboride (MB2) and their implementation for tailoring the microstructure and properties of MB2-based Ultra-high temperature Ceramics (UHTCs). The emphasis is on the processing approaches, microstructures, and properties of self-reinforced and/or textured MB2-based composites with elongated MB2 grains. The crystal structure characteristics and grain growth behaviour of MB2 are also critically reviewed. Benefiting from the tailored microstructure, the MB2-based ceramics exhibit some improved properties. Considering the success of Si3N4 ceramics in the field of structural ceramics, it is expected that the potential MB2-based ceramic composites with abundant elongated MB2 grains, textured structures, and controlled grain boundaries would possess improved fracture toughness, thermal shock resistance, and reliable high-temperature properties, which are desired for their practical applications. Accordingly, microstructure designing and tailoring provide an important perspective for the future development of UHTCs.
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