纳米非晶金刚石膜对镍铬合金烤瓷修复体弯曲强度的影响  

Effect of nanometer amorphous diamond film on bending strength of porcelain fused to Ni-Cr alloy

作　　者：刘志功 黄翠[2] 张德贵[3] 谢恩求 卢云 

机构地区：[1]广东省珠海市三灶医院口腔科,主任副主任医师广东519040 [2]武汉大学口腔医学院,主任医师教授湖北430079 [3]华南理工大学材料学院,副教授广东510641

出　　处：《口腔颌面修复学杂志》2012年第2期103-105,共3页Chinese Journal of Prosthodontics

摘　　要：目的:探讨纳米非晶金刚石膜对镍铬合金烤瓷修复体弯曲强度的影响。方法:36个镍铬合金烤瓷试件随机分为6组(n=6),其中5组的整个试件的表面分别镀覆非晶金刚石膜厚为20nm、40nm、60nm、80nm、100nm,对照组不镀膜;按照ISO9693-1标准的三点弯曲法测试试件的弯曲强度。结果:镀膜后镍铬合金烤瓷试件的弯曲强度分别是:20nm组为60.84±6.75MPa、40nm组为79.16±9.82MPa、60nm组为86.23±11.43MPa、80nm组为81.40±9.69MPa、100nm组为64.56±7.07MPa,未镀膜组为46.15±5.53MPa。结论:镍铬合金烤瓷复合体的整个试件经镀覆纳米非晶金刚石膜后其弯曲强度显著增加;镀膜时选择40-80nm的膜厚可以获得较高的弯曲强度。Objective： To investigate the effect of nanometer amorphous diamond film on bending strength of porcelain fused to Ni-Cr alloy.Methods： Thirty-six porcelain fused to Ni-Cr alloy specimens were randomly divided into six groups（n=6）.Five groups specimens were deposited nanometer amorphous diamond film and the thickness of the film were 20nm,40nm,60nm,80nm,100nm,respectively.Specimens in the control group had not been deposited film.The bending strength of specimens were measured by a three-point bending test according to ISO 9693-1.Results： The bending strength of group 20nm,40nm,60nm,80nm,100nm and control were 60.84±6.75MPa,79.16±9.82MPa、86.23±11.43MPa,81.40±9.69MPa,64.56±7.07MPa,46.15±5.53MPa respectively.Conclusions： The bending strength of porcelain fused to Ni-Cr alloy complex would increase notably after they were deposited nanometer amorphous diamond film.It could get a higher bending strength when the thickness of deposited film were 40-80nm.

关 键 词：纳米材料 非晶金刚石膜 镍铬合金 烤瓷 弯曲强度 

分 类 号：R783[医药卫生—口腔医学]