反复熔铸对钴铬烤瓷合金力学性能影响的研究  

Study of the mechanical properties of Co-Cr ceramic alloy after recasts

作　　者：杨松[1] 程辉[1] 李秀容[2] 吴维青[3] 郑明[1] 王颖卉[1] 

机构地区：[1]福建医科大学附属口腔医院修复科 [2]福建医科大学附属口腔医院技工中心 [3]福州大学测试中心,福州350002

出　　处：《华西口腔医学杂志》2011年第3期249-252,共4页West China Journal of Stomatology

基　　金：福建省科技攻关重点基金资助项目(2010Y0024);福建医科大学附属口腔医院发展学科建设基金资助项目([2008)39号]

摘　　要：目的探讨反复熔铸对钴铬烤瓷合金力学性能的影响。方法钴铬烤瓷合金经过单纯反复熔铸3次后,用拉伸实验对各代试件的拉伸强度、0.2%屈服强度、延伸率进行比较;用弯曲实验对各代试件的弯曲强度、弯曲模量进行比较;用硬度实验对各代试件的维氏硬度值进行比较。结果经过不同熔铸次数的钴铬烤瓷合金的拉伸强度、0.2%屈服强度、延伸率、弯曲强度、弯曲模量及维氏硬度值差异均无统计学意义。结论钴铬烤瓷合金至少可以反复熔铸3次而不引起力学性能的下降。Objective To study the mechanical properties of Co-Cr ceramic alloy after recasts.Methods Co-Cr ceramic alloy cast samples were prepared and recast for 3 times without adding any new Co-Cr ceramic alloy.The tensile strength,0.2% yield strength,percentage of elongation,flexural strength,flexural modulus and Vickers hardness of each specimen were measured.Results Being cast for different times,the Co-Cr ceramic alloy showed no significant diffe-rences on their tensile strength,0.2% yield strength,percentage of elongation,flexural strength,flexural modulus and Vickers hardness.Conclusion Co-Cr ceramic alloy can be recast for 3 times at least,without decrease of the mecha-nical properties.

关 键 词：钴铬烤瓷合金 反复熔铸 力学性能 

分 类 号：R783.1[医药卫生—口腔医学]