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CATION ENVIRONMENTS AND THE MIXED ALKALI EFFECT IN SILICATE-GLASSES - AN EXAFS INVESTIGATION
GREAVES, GN; CATLOW, CRA; VESSAL, B; CHARNOCK, J; HENDERSON, CMB; ZHU, R; QIAO, S; WANG, Y; GURMAN, SJ; HOUDEWALTER, S
1990
发表期刊INSTITUTE OF PHYSICS CONFERENCE SERIES
期号111页码:411-418
通讯作者UNIV KEELE, DEPT CHEM, KEELE ST5 5BG, STAFFS, ENGLAND ; UNIV MANCHESTER, DEPT GEOL, MANCHESTER M13 9PL, LANCS, ENGLAND ; INST HIGH ENERGY PHYS, BEIJING, PEOPLES R CHINA ; INST NUCL RES, SHANGHAI, PEOPLES R CHINA ; UNIV LEICESTER, DEPT PHYS, LEICESTER LE1 7RH, ENGLAND ; UNIV ROCHESTER, DEPT OPT, ROCHESTER, NY 14627 USA
文章类型Article
摘要EXAFS measurements have been used to obtain the environments of salient cations in a variety of binary alkali silicate glasses. Compared to SiO2 a lengthening of the mean tetrahedral Si-O bond length is observed. K-O and Cs-O bond lengths and coordination numbers indicate these alkalis and their nearest neighbour oxygens occupy quasi-octahedral sites in single alkali glasses. Small differences are observed when both alkalis are present, indicating intimate mixing. This is predicted by the Modified Random Network (MRN) which is used to provide a unified picture for the Mixed Alkali Effect based on structural constraint.
学科领域Physics
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语种英语
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1990EZ01000046
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237372
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
GREAVES, GN,CATLOW, CRA,VESSAL, B,et al. CATION ENVIRONMENTS AND THE MIXED ALKALI EFFECT IN SILICATE-GLASSES - AN EXAFS INVESTIGATION[J]. INSTITUTE OF PHYSICS CONFERENCE SERIES,1990(111):411-418.
APA GREAVES, GN.,CATLOW, CRA.,VESSAL, B.,CHARNOCK, J.,HENDERSON, CMB.,...&HOUDEWALTER, S.(1990).CATION ENVIRONMENTS AND THE MIXED ALKALI EFFECT IN SILICATE-GLASSES - AN EXAFS INVESTIGATION.INSTITUTE OF PHYSICS CONFERENCE SERIES(111),411-418.
MLA GREAVES, GN,et al."CATION ENVIRONMENTS AND THE MIXED ALKALI EFFECT IN SILICATE-GLASSES - AN EXAFS INVESTIGATION".INSTITUTE OF PHYSICS CONFERENCE SERIES .111(1990):411-418.
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