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Cu-Ni-Ti Composite Diffusion Coating on Si_3N_4 Ceramic Surface

机译：Si_3N_4陶瓷表面的Cu-Ni-Ti复合扩散涂层

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摘要

Si_3N_4 ceramic surface was metallized using multi-ionic composite coating technology. The obtained Cu-Ni-Ti composite coating was examined and evaluated by energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), X-ray diffusion (XRD) and sound emissive scratch test (SEST). The composite coating composition, the element distribution, the phase structure of the deposited coating, and the jointing mechanism of steel/ceramics were analyzed. It was found that the obtained alloy coating layer contained elements such as Cu, Ti, Ni and Fe, etc, and no element segregation was observed. XRD result showed that the diffusion coating alloy layer was composed of Cu_2Ti_4O, Cu, NiTi and CuTi_2. Sound emissive scratch test (SEST) results revealed a good adhesion between the diffusion coating alloy layer and ceramic, and no spallation occurred under the maximum load of 100N.
机译：使用多离子复合涂层技术对Si_3N_4陶瓷表面进行了金属化处理。通过能量色散谱（EDS），扫描电子显微镜（SEM），X射线扩散（XRD）和声发射划痕试验（SEST）对获得的Cu-Ni-Ti复合涂层进行了检查和评估。分析了复合涂层的组成，元素分布，沉积涂层的相结构以及钢/陶瓷的结合机理。发现所获得的合金涂层包含诸如Cu，Ti，Ni和Fe等元素，并且未观察到元素偏析。 XRD结果表明，扩散涂层合金层由Cu_2Ti_4O，Cu，NiTi和CuTi_2组成。声发射划痕试验（SEST）结果表明，扩散涂层合金层与陶瓷之间具有良好的粘合性，并且在最大负载100N下没有出现剥落现象。

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