STRUCTURAL STUDY OF MOLTEN SILVER-HALIDES BY NEUTRON-DIFFRACTION

被引：54

作者：

INUI, M

TAKEDA, S

SHIRAKAWA, Y

TAMAKI, S

WASEDA, Y

YAMAGUCHI, Y

机构：

[1] NIIGATA UNIV,GRAD SCH SCI & TECHNOL,NIIGATA 95021,JAPAN

[2] TOHOKU UNIV,MINERAL DRESSING & MET RES INST,SENDAI,MIYAGI 980,JAPAN

[3] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

[4] NIIGATA UNIV,FAC SCI,DEPT PHYS,NIIGATA 95021,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 09期

关键词：

NEUTRON DIFFRACTION; LOCAL STRUCTURE; MOLTEN SILVER CHLORIDE; MOLTEN SILVER BROMIDE; MOLTEN SILVER IODIDE; MOLTEN SALT;

D O I：

10.1143/JPSJ.60.3025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Structure factors of molten AgCl, AgBr and AgI have been obtained by neutron scattering measurements at two different temperatures in order to investigate the local structure and its temperature dependence. The partial structural parameters such as a partial coordination number and an inter ionic distance have been determined by curve fitting analysis. Molten silver halides are found to have tetrahedral coordination of the local order near the melting points. The local order for molten AgCl and AgBr is broken with increasing temperature, while that for molten AgI is preserved even at high temperature. This suggests that the bonding in molten AgI has more covalent character than that in molten AgCl and AgBr.

引用

页码：3025 / 3031

页数：7

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