Grain-size insensitive work-hardening behavior of Ag microwires

Li, Xiaocui1; Yang, Haokun1,2; Meng, Fanling1,3; Lu, Jian1,2,4; Lu, Yang1,2,4

2019-06-24

10.1016/j.msea.2019.05.098

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

In this study, the work-hardening behavior of Ag microwires with different grain sizes has been investigated, and the results show that the work-hardening rate of Ag microwires does not decrease with the increase of grain size, suggesting that the work-hardening capacity of Ag microwires is insensitive to grain size. Moreover, the microstructure evolution of the samples before and after tensile tests has been characterized using scanning electron microscope-backscattered electron (SEM-BSE), electron backscattered diffraction (EBSD) and transmission electron microscope (TEM). As a typical low stacking faults energy (SFE) material, stacking faults and twins are particularly easy to form in Ag microwires. Abundant stacking faults and twins, as well as minor lattice orientation adjustment in Ag microwires were observed and confirmed to play key roles on their grain-size insensitive work-hardening capacity. The current study provides insights for manufacturing Ag microwires for bonding process and other microelectronics applications.

Grain size Ag microwire Work-hardening Stacking fault energy Transmission electron microscopy

SCI ; EI

英语

其他

Province-Institute/Province-College Cooperation Project[2017IB016]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000472813900070

ELSEVIER SCIENCE SA

20192607122347

Electrons ; High resolution transmission electron microscopy ; Microelectronics ; Scanning electron microscopy ; Stacking faults ; Strain hardening ; Tensile testing ; Transmission electron microscopy

Heat Treatment Processes:537.1 ; Optical Devices and Systems:741.3 ; Crystal Lattice:933.1.1

MATERIALS SCIENCE

Web of Science

1.City Univ Hong Kong, Dept Mech Engn, 83 Tat Chee Ave, Hong Kong, Peoples R China
2.City Univ Hong Kong, Hong Kong Branch, Natl Precious Met Mat Engn Res Ctr, 83 Tat Chee Ave, Hong Kong, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, 1088 Xueyuan Rd, Shenzhen, Peoples R China
4.City Univ Hong Kong, Shenzhen Res Inst, Ctr Adv Struct Mat, Hong Kong, Peoples R China

Li, Xiaocui,Yang, Haokun,Meng, Fanling,et al. Grain-size insensitive work-hardening behavior of Ag microwires[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,759:655-660.

Li, Xiaocui,Yang, Haokun,Meng, Fanling,Lu, Jian,&Lu, Yang.(2019).Grain-size insensitive work-hardening behavior of Ag microwires.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,759,655-660.

Li, Xiaocui,et al."Grain-size insensitive work-hardening behavior of Ag microwires".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 759(2019):655-660.