Mechanistic insights into single crystal cadmium whisker growth on Ti2Cd intermetallic

Yuxin Shi; Jingwen Tang; Wanjie Sun; Haifeng Tang; Xinxin Xia; Tianyu Wang; Jianxiang Ding; Peigen Zhang; ZhengMing Sun

Journal of Materials Research and Technology (Sep 2023)

Mechanistic insights into single crystal cadmium whisker growth on Ti2Cd intermetallic

Yuxin Shi,
Jingwen Tang,
Wanjie Sun,
Haifeng Tang,
Xinxin Xia,
Tianyu Wang,
Jianxiang Ding,
Peigen Zhang,
ZhengMing Sun

Affiliations

Yuxin Shi: School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China
Jingwen Tang: Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China
Wanjie Sun: School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China
Haifeng Tang: Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China
Xinxin Xia: School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China
Tianyu Wang: Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China
Jianxiang Ding: School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China; Corresponding author. School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China.
Peigen Zhang: Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China; Corresponding author.
ZhengMing Sun: School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, PR China; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China; Corresponding author. Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China.

Journal volume & issue: Vol. 26
pp. 8915 – 8921

Abstract

Read online

Metal whisker growth poses a significant reliability threat to electronic devices. Previous investigations have predominantly focused on metal platings and alloy solder samples, yet the intricate factors involved have yielded inconsistent comprehension of the phenomenon. To achieve a comprehensive understanding, exploring intermetallic compounds (IMCs) may offer a novel standpoint. Herein, we present the first report on the growth of single crystal cadmium (Cd) whiskers on Ti2Cd IMC, accompanied by the characterization of their composition, crystal structure, and morphological features. Furthermore, the influence of mechanical damage and temperature on the whisker growth is examined. Ball milling induces the decomposition of Ti2Cd, liberating active Cd atoms with elevated chemical potentials that consequently feed the whisker growth. These findings augment the existing knowledge on the topic of the metal whisker growth and provide fresh perspectives and references for further investigations in this field.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords