Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 degrees C

IMR OpenIR

	Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 degrees C
	Z. F. Zhang; Z. M. Sun
	2005
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	408 期号:1-2 页码:64-71
摘要	Polycrystalline titanium silicon carbide (Ti3SiC2) samples with grain size of 20-50 mu m were synthesized from 2Ti/2Si/3TiC powder at 1300 degrees C for 60 min through the pulse discharge sintering (PDS) technique. Compressive tests were conducted on the Ti3SiC2 specimens at temperatures up to 930 degrees C in vacuum. The results showed that the Ti3SiC2 specimens displayed obvious shear fracture behavior and monotonically decreasing fracture strength from 935 MPa (25 degrees C) to 640 MPa (930 degrees C). On the macro-scale, the shear fracture surfaces make an angle of 23-31 degrees with respect to the stress axis. In micro-scale, the main deformation and damage modes consist of sliding, buckling and fracture of grains, kinking and intergranular cracking. The macro-shear fracture mechanism of Ti3SiC2 is quite analogous to other brittle materials, such as polycrystalline ice and bulk metallic glasses (BMGs). Based on the results available, the shear fracture mechanism of Ti3SiC2 is discussed and related to the behavior of other brittle materials. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. natl inst adv ind sci & technol, aist tohoku, miyagino ku, sendai, miyagi 9838551, japan.;zhang, zf (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Ti3sic2 Deformation And Damage Shear Fracture Fracture Angle Bulk Metallic-glass Discharge Sintering Technique Ternary Compound Ti3sic2 Mechanical-properties Polycrystalline Ti3sic2 Layered Ti3sic2 Contact Damage Grain-size Ice Deformation
URL	查看原文
WOS记录号	WOS:000233524700009
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35252
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. F. Zhang,Z. M. Sun. Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 degrees C[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2005,408(1-2):64-71.
APA	Z. F. Zhang,&Z. M. Sun.(2005).Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 degrees C.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,408(1-2),64-71.
MLA	Z. F. Zhang,et al."Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 degrees C".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 408.1-2(2005):64-71.