| 邹洁,胡滨.不同烧结温度的钛硅涂层对钴铬合金耐腐蚀性能的影响[J].口腔材料器械杂志,2015,24(3):142-145. |
| 不同烧结温度的钛硅涂层对钴铬合金耐腐蚀性能的影响 |
| Effects of TiSi coatings with different sintering temperature on corrosion resistance of dental CoCr alloy |
| 投稿时间：2014-12-09 修订日期：2015-01-12 |
| DOI：10.11752/j.kqcl.2015.03.07 |
| 中文关键词: 钴铬合金 钛硅涂层 烧结温度 腐蚀 |
| 英文关键词:Co-Cr alloy TiSi coating Sintering temperature Corrosion |
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| 摘要点击次数: 939 |
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| 中文摘要: |
| 目的 研究不同烧结温度下的钛硅(TiSi)涂层对牙科软质钴铬合金(CoCr) 耐腐蚀性能的影响。方法 选用临床常用的软质钴铬合金,制作成10mm×10mm×1mm 规格的试件18 件,将试件随机分成A、B、C 3 组(n=6),在B、C 组试件表面运用溶胶-凝胶法涂覆钛硅薄膜,分别设定900℃和1000℃的烧结温度。将A、B、C 组试件分别浸于37℃乳酸/NaCl 溶液中7 天,然后利用失重法计算材料的腐蚀速度,并运用等离子体发射光谱仪(ICP-AES) 对溶液进行分析,以获得3 种试件离子析出量的差异。结果 B、C2 组试件间腐蚀速度没有显著性差异(P>0.05),但都低于A 组试件。离子析出量分析显示,B、C 2 组试件的Co、Cr、Ni 及总的离子析出量均少于A 组试件(P<0.05),B 组试件的Co、Cr、Si 及总离子析出量显著高于C 组试件(P<0.05)。结论 钛硅涂层可显著提高软质钴铬合金的耐腐蚀性能,1000℃获得的钛硅涂层抗蚀性能优于900℃。 |
| 英文摘要: |
| Objective To investigate the effects of titanium-silicon (TiSi) coatings with different sintering temperature on corrosion resistance of dental soft CoCr alloy. Methods The commonly used soft CoCr alloy was cast into 18 specimens of size 10mm×10mm×1mm. These specimens were randomly divided into three groups (group A, B and C) (n=6). Then the specimens of group B and C were coated with TiSi on the surface by sol-gel method. The specimens of group B were sintered at 900 ℃ , while the sintering temperature of group C specimens was 1000 ℃. The specimens of groupA, B and C were immersed in a lactic acid/NaCl solution at 37℃ for 7 days. The method of weight loss was used to analyze the corrosion rate. The solutions were analyzed with ICP-AES to determain the release of elements. Results In the analysis of weight loss method data, there were no significantly differences in corrosion rate between group B and C (P>0.05). The corrosion rates of group B and C were lower than that of group A (P<0.05). The specimens of group A released significantly more ions (Co、Cr、Ni,and total ions) compared with the group B and group C specimens (P<0.05). The levels of Co、Cr、Si and total ions were higher in specimens of group B than that in group C (P<0.05). Conclusion TiSi coating can significant improve the corrosion resistance of soft CoCr alloy. The TiSi coating sintered at the temperature of 1000℃ showed better corrosion performance than that of 900℃. |
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