ABSTRACT The gas-tight joining between yttrium-stabilised semi-closed zirconia ceramic tube and 06Cr19Ni10 stainless steel tube was achieved by using a self-made Ag–27Cu–4Ti paste filler material, where the joint form was an outer sleeve joint. After brazing, the samples were subjected to thermal shock (−50°C to 150°C) and thermal cycling tests (room temperature to 600°C), respectively. The sealing tightness of samples with different assembly clearances was investigated. Microstructure and phase composition of the joint with good performance was analysed. The results showed that the sealing performance of samples with the clearances of 0.03∼0.04 mm was best, and their tightness could still be less than 5 × 10−10 Pa·m3 s−1 after a series of heat treatment; microstructure of the joint with good sealing was dense and there were no obvious defects; the joining layer adjacent to ceramic was mainly comprised of three continuous reaction layers, the composition phase of which included Ti3Cu3O, TiO and ZrTiO4.

中文翻译：

---

管状氧化锆陶瓷与06Cr19Ni10不锈钢管钎焊接头分析

摘要 钇稳定半封闭氧化锆陶瓷管与06Cr19Ni10不锈钢管之间的气密连接是通过使用自制的Ag-27Cu-4Ti膏状填充材料实现的，其中接头形式为外套管接头。钎焊后，样品分别进行热冲击（-50°C 至 150°C）和热循环测试（室温至 600°C）。研究了具有不同装配间隙的样品的密封性。分析了性能良好的接头的显微组织和相组成。结果表明，间隙为0.03～0.04 mm的试样密封性能最好，经过一系列热处理后其密封性仍可小于5×10-10 Pa·m3 s-1；密封良好的接头组织致密，无明显缺陷；