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Dent Mater J：摩擦化学二氧化硅涂层氧化锆的超微结构和粘接特质

2018-10-22 lishiting MedSci原创

氧化锆氧化硅涂层超微结构
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摩擦化学二氧化硅涂层(TSC)通常在封闭前用来预处理二氧化锆表面。尽管许多研究表明，TSC对于氧化锆的粘接具有促进作用，但是它确切的相互作用机制还不完全清楚。

摩擦化学二氧化硅涂层(TSC)通常在封闭前用来预处理二氧化锆表面。尽管许多研究表明，TSC对于氧化锆的粘接具有促进作用，但是它确切的相互作用机制还不完全清楚。

在这篇研究中，作者确定了TSC处理的氧化锆超微结构的特点并测试了剪切粘接强度。

STEM/EDS显示出微粗糙的氧化锆表面部分覆盖了熔合的Al和Si，同时，也可以检测到残余未熔合的二氧化硅颗粒。TSC处理的接受单独二氧化硅底漆氧化锆的剪切粘接强度比联合施以10-MDP/硅烷底漆的氧化锆明显降低。SEM破损分析显示，残余二氧化锆颗粒既存在于氧化锆表面，也存在于粘接剂部分。相关超微结构和化学表面特质的观察显示，TSC在氧化锆表面沉积了一层不均匀的二氧化硅层，这解释了为什么单体硅烷偶联剂比联合10-MDP/硅烷陶瓷底漆对于TSC预处理氧化锆的粘接效率要低。

原始出处：

Nagaoka N， Yoshihara K， et al. Ultrastructure and bonding properties of tribochemical silica-coated zirconia. Dent Mater J. 2018 Oct 5. doi： 10.4012/dmj.2017-397.

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    2019-09-04 cmj8wellington

    #微结构#

    0

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    2019-09-26 guojianrong

    #二氧化硅#

    0

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    2018-10-24 medsci248

    #氧化锆#

    0

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    2018-10-22 医者仁心5538

    学习了

    0

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