Cu-Ni-Ti Composite Diffusion Coating of the Al2O3 Ceramic Surface and its Joining Mechanism

Hong Xia Zhang; Wen Xian Wang; Yin Hui Wei

doi:10.4028/www.scientific.net/AMR.97-101.1445

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101Cu-Ni-Ti Composite Diffusion Coating of the Al2O3...

Cu-Ni-Ti Composite Diffusion Coating of the Al₂O₃ Ceramic Surface and its Joining Mechanism

Abstract:

Al2O3 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 the deposited coating/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 CuTi2, Ni[TiO3] and Al2O3. 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.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

1445-1449

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.1445

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Online since:

March 2010

Authors:

Hong Xia Zhang, Wen Xian Wang, Yin Hui Wei

Keywords:

Al₂O₃ Ceramic, Composite Diffusion Coating, Triadic Cu-Ni-Ti Composit Target

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