【摘要】 本文报导了使用交流磁化率、XRD、NQR、NMR等实验手段通过加速反应研究YBa₂Cu₃Q₇超导相在水中的退化机制问题。研究表明,水对超导相有很强的腐蚀作用,使之分解为CuO、Ba（OH）₂和Y-Ba化合物,Ba（OH）₂又进一步和大气中的CO₂反应生成BaCO₃。DW-3胶涂层和金属管帽封装能有效地保护超导样品防止水或大气中水汽的侵蚀。更多还原

【Abstract】 The degeneration mechanism of YBa₂Cu₃O₇ in water has been investigated with the method of accelerated reacts using ac susceptibility, XRD, NQR, and NMR. The results show that waters have strong corrosive effect to superconducting sample, YBa₂Cu₃O₇ phase decomposes CuO, Ba（OH）₂ and Y-Ba compound in water, and Ba（OH）₂ further reacts with CO₂ in atmosphere to form BaCO₃.DW-3 viscos coating and metal encapsulant can protect the sample to prevent deterioration from water and atmospheric moisture.更多还原