Ultrasonic-promoted rapid transient liquid phase bonding of high volume fraction SiC particle reinforced aluminum-based metal matrix composite in low temperature

Lin Ma; Changzhuang Zhou; Qi Wen; Mingshen Li; Heng Zhong; Shude Ji

doi:10.1016/j.ultras.2020.106159

Ultrasonic-promoted rapid transient liquid phase bonding of high volume fraction SiC particle reinforced aluminum-based metal matrix composite in low temperature

Ultrasonics. 2020 Aug:106:106159. doi: 10.1016/j.ultras.2020.106159. Epub 2020 Apr 20.

Authors

Lin Ma¹, Changzhuang Zhou², Qi Wen², Mingshen Li², Heng Zhong³, Shude Ji²

Affiliations

¹ Shenyang Aerospace University, China. Electronic address: linma@sau.edu.cn.
² Shenyang Aerospace University, China.
³ The University of Queensland, Australia.

PMID: 32361042
DOI: 10.1016/j.ultras.2020.106159

Abstract

High volume fraction SiC particle reinforced Al-based MMCs (SiC/Al MMCs) were bonded by Ultrasonic-promoted transient-liquid-phase (UTLP) bonding with pure Zn foil as interlayer at 390 °C. Oxide films were removed totally attributing to ultrasonic vibration and liquid Zn-Al eutectic phase were formed. Ultrasonic vibration time extension promoted element diffusion and decreased the bonding wide because of vibration squeezing effect, which would shorten bonding time. But overlong ultrasonic time made SiC particles contact with each other result in poor joint quality. Sound joints obtained with ultrasonic vibration time of 60 s and the shear strength of joint is 134.4 MPa. The oxide films removed processes and UTLP joint formation mechanism of high volume fraction SiC/Al MMCs were discussed in details.

Keywords: Microstructure; SiC/Al MMCs; TLP bonding; Ultrasonic applications; Vibration squeezing effect; Zn interlayer.