ultra-high temperature ceramic materials (UHTCM);
ceramic based on ZrB2-SiC;
hot pressing (HP);
zirconium diboride;
silicon carbide;
MECHANICAL-PROPERTIES;
COMPOSITES;
D O I:
10.1007/s11148-017-0052-9
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Hot pressing of commercially available powders is used to prepare dense ceramic based on ZrB2 -SiC with different additives (Si3N4, TiSi2, ZrSi2, MoSi2). The main physicomechanical properties are measured in macro-specimens: ultimate strength in static three-point bending at room temperature 400 - 600 MPa, Vickers microhardness up to 15 GPa, and critical stress intensity factor up to 5.9 MPa center dot m(1/2). Average LTEC, thermal diffusivity, thermal conductivity, and oxidation resistance over a wide temperature range are determined. Altogether the ceramic properties obtained are at the level of published indices.
机构:
Acad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R ChinaAcad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Zou, Ji
Zhang, Guo-Jun
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机构:
Acad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R ChinaAcad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Zhang, Guo-Jun
Kan, Yan-Mei
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机构:
Acad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R ChinaAcad Sinica, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China