Deformation behavior and mechanism of p-type (Bi,Sb)<sub>2</sub>Te<sub>3</sub> alloy during three-point bending test at room temperature

doi:10.1016/j.matchar.2023.113414

IMR OpenIR

	Deformation behavior and mechanism of p-type (Bi,Sb)₂Te₃ alloy during three-point bending test at room temperature
	Wang, Qichen 1,2; Ren, Jie 1,2; Han, Fuzhou 1,2; Guo, Wenbin 3; Cao, Yi 3; Li, Songbin 3; Wu, Songquan 3; Li, Geping 1,2; Ali, Muhammad 1,2; Hu, Jianan 1,2; Ke, Hongliang 3; Gao, Xingpeng 3
通讯作者	Han, Fuzhou() ; Li, Geping(gpli@imr.ac.cn)
	2023-12-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	206 页码:7
摘要	In order to improve the machining process to engineer microstructure and defect types so as to further enhance the thermoelectric properties, it is desirable to understand the deformation behavior and mechanism of polycrystalline Bi2Te3 alloys. This work investigated the deformation behavior and mechanism of (Bi,Sb)(2)Te-3 alloy during three-point bending tests using electron backscatter diffraction (EBSD). Results indicated that both dislocation slip and twinning occurred during the bending tests. The twins with the twin orientation relationship of (0001)(M)//(0001)(T) were observed. In addition, the nano-grains extruded the coarse grains in such a way that coarse grains assumed an orientation vulnerable to fracture along the basal planes. Slip trace analysis revealed that 1/3<11(2)0> dislocation slipping on basal planes broke the Van der Waals bonds between the basal planes which eventually led grains to fracture. Additionally, a novel model was introduced that first incorporated the bending moment diagram in order to deduce the deformation process.
关键词	(Bi,Sb)(2)Te-3 alloy Microstructural deformation Three-point bending test
DOI	10.1016/j.matchar.2023.113414
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001104682200001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177445
专题	中国科学院金属研究所
通讯作者	Han, Fuzhou; Li, Geping
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Jiangxi Copper Technol Res Acad Co Ltd, Nanchang 330096, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qichen,Ren, Jie,Han, Fuzhou,et al. Deformation behavior and mechanism of p-type (Bi,Sb)₂Te₃ alloy during three-point bending test at room temperature[J]. MATERIALS CHARACTERIZATION,2023,206:7.
APA	Wang, Qichen.,Ren, Jie.,Han, Fuzhou.,Guo, Wenbin.,Cao, Yi.,...&Gao, Xingpeng.(2023).Deformation behavior and mechanism of p-type (Bi,Sb)₂Te₃ alloy during three-point bending test at room temperature.MATERIALS CHARACTERIZATION,206,7.
MLA	Wang, Qichen,et al."Deformation behavior and mechanism of p-type (Bi,Sb)₂Te₃ alloy during three-point bending test at room temperature".MATERIALS CHARACTERIZATION 206(2023):7.