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目的:确认纳米非晶金刚石膜能否镀覆在镍铬合金烤瓷复合体的表面,检测膜与镍铬合金及烤瓷表面的结合强度。方法:制得镍铬合金烤瓷试件共50个,分为5组,每组10个;各组试件分别镀膜厚为20nm、40nm、60nm、80nm、100nm,用纳米划痕测试仪分别对每组10个试件的两面测试膜/合金基、膜/瓷基结合强度;用激光拉曼光谱仪对镀膜后的合金面和烤瓷面进行光谱分析。结果:镀膜后的合金面和烤瓷面均可见非晶金刚石膜的特征峰;膜与镍铬合金面结合强度为7.21-10.67N,膜厚为80nm时结合强度较高;膜与烤瓷面结合强度为20.56-24.98N,膜厚为40nm时结合强度较高。结论:镀覆在镍铬合金及烤瓷表面的是非晶金刚石膜;非晶金刚石膜可与镍铬合金及烤瓷面形成较好的结合,此膜在各种膜厚与烤瓷面的结合强度均显著高于它与镍铬合金面的结合强度;膜厚不同,膜/基结合强度不同,镀膜时应选择适宜的膜厚。
Objective: To confirm whether the nano-amorphous diamond film can be plated on the surface of the Ni-Cr alloy porcelain complex, and to test the bonding strength between the film and the Ni-Cr alloy and the porcelain surface. Methods: A total of 50 Ni-Cr alloy porcelain specimens were prepared and divided into 5 groups with 10 in each group. The thickness of each sample was 20nm, 40nm, 60nm, 80nm and 100nm respectively. The film / base and film / base bonding strength were tested on both sides of 10 specimens in each group. The surface of the coated alloy and porcelain were analyzed by laser Raman spectroscopy. Results: The characteristic peaks of amorphous diamond films were observed on the alloy surface and the porcelain surface. The bonding strength between the film and the Ni-Cr alloy surface was 7.21-10.67N, and the bonding strength was higher when the film thickness was 80nm. The bonding strength is 20.56-24.98N, the bonding strength is higher when the film thickness is 40nm. CONCLUSION: Amorphous diamond films are plated on the surfaces of Ni-Cr alloy and porcelain. Amorphous diamond films can form a good combination with Ni-Cr alloy and porcelain surface. The combination of various film thickness and porcelain surface Its strength is significantly higher than that of its combination with the nickel-chromium alloy surface strength; different film thickness, film / base bonding strength, the coating should choose the appropriate thickness.