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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effect of double oxide layer on metal-glass sealing
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Effect of double oxide layer on metal-glass sealing

机译：双层氧化层对金属玻璃密封的影响

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One of the main requirements of a metal-glass sealing is hermeticity along with mechanical strength of the metal-glass bond. For this purpose. the thermal expansion coefficient of the metal needs to be as close as possible to the glass expansion coefficient to limit stress development in the glass. Second, an oxide layer should be developed on the metal surface that works as an interface. for the transition from glass properties, gradually, to metal properties. For these purposes, a ferritic stainless steel stabilized with titanium has been developed. The thermal coefficient expansion of the metal was measured using a Chevenard differential dilatometer. To evaluate adhesion of the oxide film on the metal, oxide spallation after deformation has been performed. Scanning electron microscopy (SEM) was done to determine the oxide structure and X-ray photoelectron spectroscopy (XPS) was performed to analyze the superficial composition of the oxide. It is shown that chromium affects the thermal expansion coefficient of the metal. A study of the oxide film Formed by a thermal treatment under wet hydrogen atmosphere is presented. During this thermal treatment a double oxide layer is built up. The outer layer, made of a spinel type MnCr2O4 with titanium oxide in the extreme surface, dissolves in the glass. The inner layer, made of a chromia scale ensures the mechanical cohesion. Moreover, it is shown that silicon contained in the steel segregates at the metal-oxide interface and decreases metal-oxide adhesion, and consequently metal-glass sealing. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 21]
机译：金属玻璃密封的主要要求之一是气密性以及金属玻璃结合的机械强度。以此目的。金属的热膨胀系数必须尽可能接近玻璃的膨胀系数，以限制玻璃中的应力发展。其次，应在金属表面上形成氧化物层作为界面。从玻璃性能逐渐过渡到金属性能。为了这些目的，已经开发了用钛稳定的铁素体不锈钢。金属的热膨胀系数是使用Chevenard差示膨胀计测量的。为了评估氧化膜在金属上的附着力，已经进行了变形后的氧化物剥落。进行扫描电子显微镜（SEM）以确定氧化物结构，并进行X射线光电子能谱（XPS）分析氧化物的表面组成。结果表明铬会影响金属的热膨胀系数。提出了在湿氢气氛下通过热处理形成的氧化膜的研究。在该热处理期间，形成了双氧化物层。由尖晶石型MnCr2O4制成的外层溶解在玻璃中，该尖晶石型MnCr2O4的最表面带有二氧化钛。由氧化铬鳞片制成的内层可确保机械凝聚力。此外，显示出钢中所含的硅在金属氧化物界面处偏析并降低了金属氧化物粘附性，并因此降低了金属玻璃密封性。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：21]

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