Effects of Al2O3 Particulates on the Thickness of Reaction Layer of Al2O3 Joints Brazed with Al2O3-Particulate-Contained Composite Filler Materials

材料科学技术（英文）, 2003, 19(5): 509-510.

^1, , ^2, , ^3,

1.National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China

2.National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China

3.National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China

基金项目: theNational Natural Science Foundation of China and also for finan-cial support from the Visiting Scholar Foundation of Key Lab in University(50075019)

Effects of Al2O3 Particulates on the Thickness of Reaction Layer of Al2O3 Joints Brazed with Al2O3-Particulate-Contained Composite Filler Materials

Keywords： Composite filler material

In order to understand the rate-controlling process for the interfacial layer growth of brazing joints brazed with activecomposite filler materials, the thickness of brazing joints brazed with conventional active filler metal and activecomposite filler materials with different volume fraction of Al2O3 particulate was studied. The experimental resultsindicate although there are Al2O3 particulates added into active filler metals, the time dependence of interfacial layergrowth is t2 as described by Fickian law for the joints brazed with conventional active filler metal. It also shows thatthe key factor affecting the interfacial layer growth is the volume fraction of alumina in the composite filler materialcompared with the titanium weight fraction in the filler material.

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材料期刊网

Effects of Al2O3 Particulates on the Thickness of Reaction Layer of Al2O3 Joints Brazed with Al2O3-Particulate-Contained Composite Filler Materials

参考文献