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本文采用Ｒａｍａｎ光谱分析方法对名义组分为ＹＢａｘＣｕ３Ｏ（ｘ＝２．０，１．８，１．６，１．２，０．６）的系列样品的相组成和超导转变温度的关系进行了分析．结果表明：１）在制备Ｙ（１２３）相材料过程中，Ｂａ元素的含量对样品的成相有着重要影响．在高Ｂａ含量的Ｙ（１２３）相样品中，容易产生ＢａＣｕＯ２相杂质，在低Ｂａ含量的样品中则容易产生Ｙ（２１１）、（Ｙ２ＢａＣｕＯ５）相杂质，而Ｂａ含量适当低于标准化学剂量配比时有利于Ｙ（１２３）相的生成２）样品的相组成对超导转变温度Ｔｃ值影响不大，但与超导转变温度宽度△Ｔｃ密切相关．当ｘ＝１．６时，其△Ｔｃ最小，说明样品中适量的Ｙ（２１１）相杂质的存在对超导转变特性的改善是有利的．
In this paper, the relationship between the phase composition and the superconducting transition temperature of a series of samples with a nominal composition of YBaxCu3O (x = 2.0, 1.8, 1.6, 1.2, 0.6) analysis. The results show that: 1) During the preparation of Y (123) phase, the content of Ba element has an important influence on the phase of the sample. BaCuO2 phase is easily formed in high Ba content Y (123) phase and Y (211), (Y2BaCuO5) phase impurities are easily produced in samples with low Ba content, whereas Ba content is lower than standard chemical dose The formation of Y (123) phase is more favorable than time. 2) The phase composition of the sample has little effect on the Tc value of the superconducting transition temperature, but it is closely related to the width △ Tc of the superconducting transition temperature. When x = 1.6, the △ Tc is the smallest, indicating that the presence of an appropriate amount of Y (211) phase impurities in the sample is advantageous for improving the superconducting transformation properties.