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特殊功能材料是一些具有优良电学、磁学、学、热学、学、力学、化学、物医学功能,在各类高科技领域到泛应用.正电子湮没技术是一种对材料微结构特别有效探测技术,特别是对各种缺陷、空位和微孔尤为灵敏,通过正电子湮没寿命谱、多普勒展宽谱和慢正电子束技术,通过分析正电子湮没参数可以获材料从表面到内部缺陷分布信息和随外部物理和化学条件变化、引起微结构变化.本文选取几种特殊材料正电子湮没实验结果来分析材料内部微结构,表明正电子湮没谱学是一种独特研究微观结构方法.
Special functional materials are some of the high-tech fields that have excellent electrical, magnetic, thermal, thermal, learning, mechanical, chemical and medical functions, and are widely used in various high-tech fields. Positron annihilation (ANN) Technology, especially for various defects, vacancies and micropores, positron annihilation lifetime spectrum, Doppler broadening spectrum and slow positron beam technique, the distribution of the material from the surface to the internal defect can be obtained by analyzing positron annihilation parameters Information and changes with the external physical and chemical conditions, causing changes in microstructure.In this paper, several special materials positron annihilation experiment results to analyze the internal structure of the material, positron annihilation spectroscopy is a unique study of microstructure.