Overwhelming reaction enhanced by ultrasonics during brazing of alumina to copper in air by Zn-14Al hypereutectic filler

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• 作者：Hongjun Ji ; ^{jhj7005@hit.edu.cn} ; Hao Chen ; Mingyu Li
• 关键词：Alumina ; Joining ; Wetting ; Microstructure ; Mechanical properties
• 刊名：Ultrasonics Sonochemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：35
• 期：part_PA
• 页码：61-71
• 全文大小：4621 K
• 卷排序：35

文摘

Ultrasonic brazing of Al2O3/Cu was achieved in air without flux by Zn-14Al filler at 753 K. Newly formed crystalline Al2O3 aggregated at the ceramic interface. Overgrowth of intermetallic compounds generated by acoustic pits on Cu was found. Reaction wetting enhanced by ultrasonics dominated this rapid and high quality brazing.