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用固相反应法制备了123相YBCO超导块材。利用超导电性（Tc）测量、扫描电镜（SEM）等方法研究了高功率微波加载及退火处理对YBCO样品的影响。电阻－温度关系曲线表明，处理后的样品在超导起始转变温度Tco≈90K处由半导体型向超导转变，超导转变宽度△T增大。SEM结果显示，晶粒大大细化。作者认为，由于高功率微波对样品的瞬时高压作用，在样品中引入了阻碍磁通蠕动的钉扎中心，同时，退火处理改善了晶粒之间的弱连接，为提高临界电流密度Jc创造了条件。
A 123 phase YBCO superconducting block was prepared by solid state reaction. The effects of high power microwave loading and annealing on YBCO samples were investigated by superconductivity (Tc) measurements and scanning electron microscopy (SEM). The resistance-temperature relationship curve shows that the treated sample transitions from a semiconductor-type to a superconducting type with a superconducting transition width ΔT increasing at a superconducting initial transition temperature Tco≈90K. SEM results show that the grain is greatly refined. The authors argue that due to the transient high pressure effect of the high-power microwave on the sample, pinning centers that impede flux creep have been introduced into the sample while annealing has improved the weak connections between the crystallites, creating the critical current density Jc condition.