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以耐热硼硅酸盐玻璃为基片,对玻璃基片分别进行喷砂预处理和不同温度下加热预处理,采用电弧喷涂法和火焰喷涂法分别在硼硅酸盐玻璃表面沉积铝涂层。用X射线衍射、扫描电镜分析了样品涂层的组成和形貌;采用涂层附着力测试仪测量涂层与玻璃基片之间的结合强度。研究了不同预处理、喷涂工艺条件对样品涂层与基片之间结合强度的影响。结果表明:加热预处理条件下样品的铝涂层与玻璃基片的结合强度大于喷砂预处理的。电弧喷涂的铝涂层与玻璃的结合强度大于火焰喷涂的。400℃下加热预处理的样品的铝涂层与玻璃的结合强度最大,此后,随预处理温度升高,涂层的结合强度呈下降趋势。400℃加热预处理的玻璃基片,采用电弧喷涂制备的样品的涂层与玻璃基片结合强度最高达11.83MPa。
The heat-resistant borosilicate glass substrate was used to pretreat the glass substrate by sandblasting and heat pretreatment at different temperatures respectively. Arc coating and flame spraying were used to deposit the aluminum coating on the surface of borosilicate glass . The composition and morphology of the sample coating were analyzed by X-ray diffraction and scanning electron microscopy. The coating adhesion tester was used to measure the bonding strength between the coating and the glass substrate. The effects of different pretreatment and spraying conditions on the bonding strength between the sample coating and the substrate were studied. The results show that the bonding strength between the aluminum coating and the glass substrate under the pretreatment conditions is greater than that of the sandblasting pretreatment. The arc-sprayed aluminum coating combines with glass more strongly than flame sprayed. At 400 ℃, the pretreatment samples with aluminum coating had the highest bonding strength with glass, and then the bonding strength of the coating decreased with the increase of pretreatment temperature. 400 ℃ heating pretreatment of the glass substrate, the sample prepared by arc spraying coating and glass substrate bonding strength up to 11.83MPa.