WebAg-Cu-Ti合金是一种活性钎料,主要应用于工程结构陶瓷间、陶瓷与金属间的钎焊。 陶瓷材料的化学键主要是离子键和共价键,电子配位非常稳定,而活性金属Ti可以通过化学反应在陶瓷表面产生分解,形成由金属与陶瓷的复合物组成的界面反应层,在钎料与陶瓷之间形成新的化学键,强化了二者间的结合 [1]。 以前钎焊陶瓷的主要方法是先用Mo-Mn法、PVD … WebDifferential scanning calorimetry (DSC) was used to study the crystallization kinetics of Ti–Zr–Ni–Cu metallic glasses near glass transition temperature. The fraction transformed y, as a function of time are of sigmoidal type at each temperature. For 0.10≤ y ≤0.85 the plots satisfy the Johnson-Mehl-Avrami equation and approximate to ...
TiZrNiCu钎焊Si3N4-MoSi2复合陶瓷与Nb接头组织及力学性能 - 化 …
Web本发明涉及一种采用TiZrNiCu+B复合钎料连接Ti60与TiB w /TC4的方法,首先将Ti60与TiB w /TC4进行机械加工得到合适尺寸的试样,将得到的待连接的Ti60与TiB w /TC4的连接面 … Web以TiZrNiCu为钎料,采用辐射加热真空钎焊Ti_2AlNb合金,界面处有Ti_2Ni、Ti(Cu,Al)2金属间化合物和Ti-Zr基固溶体生成。随着连接温度及保温时间的增加,Ti、Al、Ni、Cu元素扩散反应更加充分,Ti_2Ni和Ti(Cu,Al)2增加,Ti-Zr基固溶体减少; ... covid testing babylon ny
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Web一种多孔负膨胀陶瓷中间层辅助钎焊的方法,它涉及一种中间层辅助钎焊的方法 ... Web1 giu 2024 · The TiZrNiCu filler foil with a thickness of 30 µm was ground using 1200-grit SiC paper. In order to ensure that the filler alloy could fill the interstice, four foil layers with a total thickness of 120 µm were used for each brazing couple and a constant load of 5 kPa was applied on the samples during the brazing process. Web当B含量为0.3 wt %时,TiBw-TC4 /TiZrNiCu-B/Ti60接头的最大剪切强度为177 MPa,比无B含量的接头强度高65%。然而,过量的B含量使TiZrNiCu-B在Ti60合金基体上产生大量 … covid testing babson