phase diagramsquenching (thermal)solution annealingtin alloysX-ray diffraction/ pseudobinary phase diagrampowder X-ray diffractionannealingA pseudobinary phase diagram was determined from powder X-ray diffraction (XRD) data derived from the addition of varying amounts of Sn to the AuCu alloy system....
图1-1 Au-Sn合金二元相图Fig.1-1 Binary phase diagram of Au-Sn alloy1.3.3 AuSn焊片的应用由于金锡共晶焊料的熔点(280)比96.5Sn3.5Ag锡银共晶焊料(221)要高很多,因此它不能和广泛应用于电子封装的有机材料在同一温度下配合使用。然而,金锡钎焊料对于一些同时要求机械性能及导热性能好以获得高可靠性的应用来...
Figure 1 is the Sn-U phase diagram revised by [95Pall by means of DTA, XRD, metallography, and electron micros- copy. The existence of Sn3U was confirmed, but SnsU 3 and Sn2U3 were not found. Instead, four other phases were found for a total of five (Table 1). SnTU3 and SnU ...
Key words:Au-Pt-Sn system; phase diagram; isothermal section; microstructure; phase equilibrium; spinodal decomposition摘要:采用X 射线衍射仪(XRD)和电子探针显微分析仪(EPMA)等方法测定了Au-Pt-Sn 三元系 700 ℃等温截面。结果表明:Au-Pt-Sn 体系 700 ℃等温截面由3个单相区、7个两相区和6个三相区组成...
Au/Sn界面互扩散特征 陈松 3 ,刘泽光,陈登权,罗锡明,许昆,邓德国 (昆明贵金属研究所,云南昆明650221) 摘要:从扩散机制、扩散动力学、热力学以及相结构等方面,总结了室温范围内Au/Sn互扩散的主要特点。给出了Au/Sn互扩散中生成的 AuSn,AuSn 2 ,AuSn ...
However, the phase diagram reassessment of nanoparticles has been so far confined to fully miscible alloys or simple eutectic alloy systems such as the Ag–Au [17] and Cu–Ni [18] binary systems. For an incongruently melting system containing intermetallic compounds like the Sn–Ag system, Sim...
Pt-Au-Sn systemPhase diagramThermodynamic parametersPhase structureRare and precious metals materials with unique physical and chemical properties are widely used in aviation, aerospace, navigation, electronic, electric, petroleum chemical industry, glass fiber, waste gas purification, metallurgical and other...
The phase diagram of the Au-In-Sn system is of importance in developing materials of high performance in electronic packaging as well as in simulating the interfacial reaction between Sn-In and Au. By using the calculation of phase diagram (CALPHAD) method, phase equilibria in the Au-Sn binar...
无氰共沉积Au.Sn电镀液稳定性研究 图1.2Au—Sn二元合金相图 Fig.1.2Au-SnbinaryphasediagramAu.30at.%Sn共晶合金钎料具有以下优异的性能: (1) 高强度 Au.30at.%Sn是共晶成分,有着共晶合金的普遍特征一一细小均匀的微观组织,因 此有着很高的强度。Au.30at.%Sn焊接接头的剪切强度为47.5MPa,比过去常用的 Sn37...
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