激光焊接对金瓷结合的影响  

Effects of Laser Welding on Ceramic Fused to Metal

作　　者：黎红[1] 陈悦[1] 李勇[1] 赵云凤[1] 付强[1] 杨体林 

机构地区：[1]华西医科大学口腔医学院口腔修复学教研室,成都610041 [2]云南大理州人民医院口腔科

出　　处：《华西医科大学学报》2001年第2期271-273,共3页Journal of West China University of Medical Sciences

基　　金：华西医科大学口腔医学院基金资助

摘　　要：目的　研究激光焊接对烤瓷合金金瓷结合性能的影响。方法　将 10个激光焊接的 CW- PA烤瓷合金试棒在焊缝熔区烤上瓷盘 ,做棒盘实验 ,测量金瓷结合强度 ,并做扫描电镜观察和 X衍射能谱分析。另 10个未焊接的 CW- PA烤瓷合金试棒的棒盘实验作对照。结果　焊接试件的金瓷结合强度为 41.32± 6 .6 9MPa,接近未焊试件的金瓷结合强度 (45 .71± 9.98MPa,P>0 .0 5 )。金瓷界面微观形貌表明金瓷两相的紧密结合 ,熔区主要元素成份及比例基本没有改变。结论　激光焊接不影响金瓷结合。Objective This study was aimed to investigate the bonding effect of laser welding on ceramic fused to metal.Methods Ten laser welded CW PA ceramo alloy rods were fused with porcelain at fusion zone. The porcelain metal bond strength was measured with pull through test. SEM examination and EDAX analysis were performed. Ten non welded CW PA ceramo alloy pull rod plates were used as comparison. Results The results showed that the bond strength of laser welded sample was 41.32±6.69 MPa, approaching to 45.71±9.98 MPa of the non welded sample ( P> 0.05). The microscope displayed the interface compacted union of the two phase boundary. There was no change in the elements and their ratio at the fusion zone. Conclusion These results indicate that laser welding does not affect ceramic fused to metal.

关 键 词：激光焊接 金瓷结合 牙科修复体 

分 类 号：R783.2[医药卫生—口腔医学]