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Abstract:
使用DL POLY 2在分子动力学的基础上,采用BMH势函数,从偏径向分布函数、键角、配位数以及桥氧四个方面,模拟研究了不同Na/Al比的Na2 O-Al2 O3-SiO2玻璃体系微观结构.研究表明:随着Na/Al比的增加,Si-O、Al-O、O-O的键长没有变化,分别为0.1605 nm、0.1765 nm和0.2625 nm,Na-O键长则逐渐减小;体系中[AlO4]四面体的稳定性比[SiO4]四面体差;Na/Al=2时,出现少量SiⅤ;当Na/Al比较低时,体系中出现[AlO4]四面体的三配位现象,且未发现AlⅥ;随着Na/Al的增加,Al-T的平均配位数减少,三配位氧的含量减少.
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Source :
燕山大学学报
ISSN: 1007-791X
Year: 2017
Issue: 4
Volume: 41
Page: 317-322,328
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 1
Chinese Cited Count:
30 Days PV: 5
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