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在Al₂O₃磨砂喷射后,陶和Ni-Cr合金接头的质量

Leszek Klimek¹, Emilia Wołowiec-Korecka¹, Weronika Czepułkowska-Pawlak¹

¹Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, B. Stefanowskiego 1/15, 90-537 Lodz, Poland.

Materials (Basel, Switzerland)

|May 27, 2023

概括

优化空气中的颗粒磨损参数对于提高- (Ni-Cr) 合金-陶修复的粘合强度至关重要. 该研究发现,600 kPa的压力与110μm的氧化 (Al2O3) 颗粒产生了最强的金属陶键.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
牙科材料牙科材料

背景情况:

- (Ni-Cr) 合金和牙科陶之间的结合强度对于修复的寿命至关重要.
空气中的颗粒磨损是一种常见的表面处理方法,用于增强这种结合.
了解工艺参数对键强度的影响对于临床成功至关重要.

研究的目的:

为了研究空气中的颗粒磨损参数对Ni-Cr合金-陶键强度的影响.
确定最佳的磨损参数,以最大限度地提高金属陶关节的完整性.

主要方法:

在体外研究中,144个Ni-Cr盘被空气中的颗粒磨损,其中氧化 (Al2O3) 颗粒大小 (50,110,250微米) 和压力 (400,600千帕) 不同.
样品通过火烧粘合到牙科陶,然后进行剪切强度测试.
分析包括三向ANOVA和Tukey的HSD测试,考虑热循环 (5000个循环,5-55°C).

主要成果:

合金表面粗度参数 (Rpk,Rsm,Rsk,RPc) 和结合强度之间存在很强的相关性.
在600kPa的空气中的颗粒磨损与110μm的Al2O3颗粒显著增强了结合强度 (p < 0.05).
磨损压力和Al2O3颗粒大小都显著影响了关节强度 (p < 0.05).

结论:

对于Ni-Cr合金-陶粘合的最佳空气中颗粒磨损参数是600kPa压力和110μm Al2O3颗粒.
这些参数使得在模拟操作条件下,Ni-Cr合金和牙科陶之间具有最高的结合强度.

关键词:

这是一种Ni-Cr合金.磨砂喷射磨砂喷射是一种磨砂喷射.金属陶的结合强度强度.剪切强度剪切强度热循环环的热循环

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