摘要
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 the deposition of nanometer amorphous diamond film on the surface of porce- lain-fused-to Ni-Cr alloy compound and to investigate the bond strength of deposited films on the surface of Ni-Cr alloy and porcelain suhstrates. Methods： Fifty specimens of porcelain-fused-to Ni-Cr alloy were fabricated and randomly divided into 5 groups. The films were accomplished in each group with a thickness of 20nm, 40nm, 60nm, 80nm, 100nm respectively. The scratch test was used to measure the bond strength between fihn and alloy substrate and porcelain substrate. The Raman spectroscopic analyse was adopted to characterize the structure of the deposited film on the surface of Ni-Cr alloy and porcelain substrates. Results： The characteristic peaks of amorphous diamond film were seen on the surfaces of Ni-Cr alloy and porcelain substrate. The bond strength between the film and the Ni-Cr alloy substrate were 7.21-10.67N, and it showed higher with 80nm film. The bond strength between the film and the porcelain were 20.56-24.98N, and it showed higher with 40nm film. Conclusions： The deposited films on the Ni-Cr alloy and the porcelain substrate were amorphous diamond film. The bond strength of amorphous diamond film on the porcelain substrate in any film thickness were notably higher than that on the Ni-Cr alloy substrate. The bond strength between the film and the substrate were different with different thickness of films. Therefore, the appropriate thickness ofnanometer amorphous diamond film should be considered.
出处
《口腔颌面修复学杂志》
2011年第6期360-363,共4页
Chinese Journal of Prosthodontics
关键词
纳米材料
非晶金刚石薄膜
结合强度
镍铬合金
烤瓷
nanometer material
amorphous diamond film
bond strength
nickel-chromium alloys
porcelain
