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自奥尼斯首次发现超导现象以来,科学家们对超导研究的兴趣有增无减。新超导的不断问世,为超导技术的应用和发展开辟了广阔的前景。苏联高温超导的发展便是其中之一。莫斯科大学的研究者们已成功地利用低温化学技术制取了1,2,3YBaCuO高温超导体。其具体方法为:先制备含高浓度弱酸性的钇,铜,钡离子的水溶液。为制备硝酸钡、硝酸钇、硝酸铜混合溶液,除应在硝酸钇及硝酸铜溶液中加入易溶性硝酸盐外,还应注意保持溶液pH值接近4,并控制温度和
Since the discovery of superconductivity by Aarons for the first time, interest in superconductivity has increased steadily. The new superconductor continues to come out for the application and development of superconducting technology has opened up a broad prospect. The development of high temperature superconductivity in the Soviet Union is one of them. Researchers at Moscow State University have successfully fabricated low-temperature chemical technology using 1, 2, 3YBaCuO high temperature superconductor. The specific method is as follows: firstly preparing an aqueous solution of yttrium, copper and barium ions with high concentration and weak acidity. In order to prepare the mixed solution of barium nitrate, yttrium nitrate and copper nitrate, aside from adding the soluble nitrate into the solution of yttrium nitrate and copper nitrate, care should be taken to keep the solution pH close to 4 and to control the temperature and