关键词:Si N 陶瓷;活性钎焊;Ag-Cu- Ti 钎料; 急冷钎料;钎焊工艺;界面结 3 4 构;连接强度 Abstract Abstract On the basis of study on activity brazing of Si N ceramic , three components of the 3 4 Ag-Cu-Ti rapidly-cooled foil belt filler metal are prepared by single-roll rapidly-cooled ...
This paper describes an alternative manufacturing approach to make Ag-based active brazing alloys in foil form through roll-bond cladding. Clad brazing filler metals were produced by cold roll-bonding and further processed into thin multilayer clad foils. The differential thermal analysis and advantages...
Abstract:SiO2f/SiO2compositewasjoinedtoc/ccompositeusingAg—Cu—Tiactivebrazingfoilsat brazingtemperatureof880℃for10rainand60min,respectively.Themicrostructureofjointwasana— lyzedbyelectronprobemicro—analyzer(EPMA),X—rayenergydispersivespectrometer(XEDS)andX— ...
Three-dimensional C/SiC was successfully joined to niobium alloy with a Ti–Cu bi-foil interlayer by a two-stage joining process: at 800 °C for 30 min und... J Xiong,J Li,F Zhang,... - 《Scripta Materialia》 被引量: 159发表: 2006年 Improving the strength of brazed joints to alum...
The joining of aluminum nitride by active metal brazing with a Ag–Cu–Ti foil has been investigated in cross section by transmission electron microscopy. The reaction of AIN with the braze alloy results in the formation of continuous TiN and (Ti, Cu, Al)6N (η-phase) layers at the ...
As an important method to bond ceramic substrate and Cu foil, active metal brazing (AMB) has higher reliability than the direct bonding copper (DBC) technique. Even so, the interfacial bonding strength is still greatly affected by brittle phase, residual thermal stress and so on, which should ...
The method comprises the steps that three layers of metal foil with the width of 30 mm are stacked for ultrasonic welding, the layer-shaped composite solder is prepared, the upper layer and the lower layer are Ag-Cu eutectic foil, the thickness of the eutectic foil ranges from 21 micro...
SiC particulates were mixed with Ag–Cu–Ti powders to fabricate SiCP/Ag–Cu–Ti (SICACT) sheets by tape casting process, which were used to braze the sintered SiC ceramics with the structure of SiC/Ag–Cu–Ti foil/SICACT sheet/Ag–Cu–Ti foil/SiC. Microstructure and joining strength ...
The variation of calculated residual stresses as a function of Cu foil thickness, which was verified by X-ray measurement, exhibited a consistent with Al2O3 ceramic strain energy. Thus, the calculation of Al2O3 ceramic strain energy could be a good criterion to evaluate the joint shear ...
Moreover, Nb foil with high ductility is beneficial for the inhibition of both the micro-crack propagation and the brittle-phase formation in the joint. W foil can act as a hard barrier to adjust the joint stress distribution and to decrease the joint stress concentration....