| 用正电子湮没方法研究快离子导体 |
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| 引用本文： | 王蕴玉,潘孝良,雷振玺,杨巨华.用正电子湮没方法研究快离子导体[J].物理学报,1987,36(4):514-517. |
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| 作者姓名： | 王蕴玉 潘孝良 雷振玺 杨巨华 |
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| 作者单位： | (1)北京市建筑材料科学研究所; (2)山东建筑材料学院; (3)中国科学院高能物理研究所 |
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| 摘 要： | 本文用正电子湮没方法研究了作为快离子导体的LiF-LiCl-B2O3,LiF-B2O3新体系。发现正电子湮没的中间成分的强度I2与材料的电导率logσ之间有直线关系。配合湮没线形参数的测定结果,表明在微晶态三元体系LiF-LiCl-B2O3中,微晶与网络之间的晶界空位为锂离子传导提供了更多的导电通道,致使这类材料具有更好的导电性。
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| 收稿时间： | 1986-03-28 |
STUDY OF FAST IONIC CONDUCTOR BY POSITRON ANNIHILATION |
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| WANG YUN-YU,PAN XIAO-LIANG,LEI ZHEN-XI and YANG JU-HUA.STUDY OF FAST IONIC CONDUCTOR BY POSITRON ANNIHILATION[J].Acta Physica Sinica,1987,36(4):514-517. |
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| Authors: | WANG YUN-YU PAN XIAO-LIANG LEI ZHEN-XI and YANG JU-HUA |
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| Abstract: | The fast ionic conductor, LiCl-LiF-B2O3, LiF-B2O3 in microcrystalline and non-crystalline forms were studied by positron annihilation. It was found in all cases, the intensity of the mid-lifetime component I2 depends directly on the electrical conductivity σ. Additional measurement of Doppler broadening on the same systems indicated that voids between the microcrystal and network phases provid more transfer path for Li ions, thus lead to higher conductivity in the microcrystalline form of LiCl-LiF-B2O3 system. |
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