通过使用银基糊和Cu-Ti涂层的反应式气制成的石和克罗弗接头
Shu-Wei Chang1,2, Ren-Kae Shiue1, Liang-Wei Huang3
1Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan.
Materials (Basel, Switzerland)
|August 10, 2024
概括
这项研究通过使用铜合金涂层,提高了陶与金属的紧密性. 优化的3μm涂层确保了无缺陷的接口,保持密封完整性高达600°C.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 连接技术 连接技术
背景情况:
- 在 (ZrO2) 和金属合金 (Crofer) 等陶之间实现可靠的密封密封,对于高温应用至关重要.
- 传统的连接方法往往面临着面接完整性和长期稳定性的挑战.
- 涂层技术为改善界面粘合和密封性提供了一个有希望的途径.
研究的目的:
- 开发和评估一种新的涂层方法,以提高ZrO2和Crofer合金接头的气密性.
- 研究-铜 (Cu-Ti) 合金涂层在反应性空气制 (RAB) 过程中对微观结构和反应机制的影响.
- 为了优化Cu-Ti涂层厚度,以获得卓越的关节性能.
主要方法:
- 使用真空喷雾,将Cu-Ti合金层 (70.2%的Cu,29.8%的Ti) 沉积在ZrO2和Crofer基板上.
- 反应式空气制 (RAB) 使用银作为填充材料进行.
- 进行了微结构分析和气密测试,以评估关节的质量和性能.
主要成果:
- 这种Cu-Ti涂层显著改善了银填充剂和ZrO2基板之间的粘合.
- 通过实验确定了3μm的优化涂层厚度.
- 铁金属化促进了无缺陷接口的形成,使密封密封成为可能.
- 接头在室温下在2 psig下28小时没有泄漏,在600°C下在24小时内保持密封的完整性.
结论:
- Cu-Ti合金涂层是一种有效的方法,可以提高ZrO2-Crofer接头的气密性.
- 优化的涂层过程导致了强大的陶金属接口,适合苛刻的应用.
- 这种方法表明了可靠,高温密封密封解决方案的潜力.
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