镀覆NiTi根管锉的钛锆氮氧膜的制备工艺与性能

Growth and characteristics of TiZrNO films deposited on NiTi root canal files

采用多弧离子镀技术在NiTi合金根管锉表面制备TiZrNO膜层,考查了沉积偏压、氧气流量对膜层表面组织形貌、成分等方面的影响;通过模拟临床制备根管(备牙)试验,观察镀膜根管锉表面形貌变化,进而确定其耐磨性能;通过电化学试验,确定了TiZrNO镀膜根管锉的耐腐蚀性能;在对试验结果综合对比分析的基础上,获得了优化的NiTi合金根管锉表面镀覆TiZrNO膜层的沉积工艺,确认了TiZrNO膜层具有良好的耐磨性和耐蚀性。

The TiZrNO films were grwon on the surface of root canal files made of NiTi alloy by using multi arc ion plating technology. The effects of deposition bias, oxygen flux on the film morphology and chemical composition were investigated. The abrasion resistance was compared among the TiZrNO films by the simulated clinical preparation of root canal and the following observation of root canal file surface morphology change. The electrochemical tests were carried out to determine the corrosion resistance of the TiZrNO-coated root canal files. On the basis of comparison and analysis of the experimental results, the optimal deposition parameters for TiZrNO films on NiTi alloy root canal file were obtained. The as-deposited TiZrNO film shows good abrasion resistance and corrosion resistance.