THE DEVITRIFICATION OF LITHIUM METABORATE - POLYMORPHISM AND GLASS-FORMATION

被引：95

作者：

CHRYSSIKOS, GD

KAMITSOS, EI

PATSIS, AP

BITSIS, MS

KARAKASSIDES, MA

机构：

[1] Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 116 35 Athens

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 126卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(90)91022-J

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The ambient pressure devitrification of glassy lithium metaborate has been studied by Raman and infrared spectroscopies. Of the three different polymorphs obtained, two are identified as α- and γ-LiBO2, while a third one, β′-LiBO2, is thought to consist of alternating borate triangles and tetrahedra respecting the metaborate stoichiometry (BO2-. The network of glassy LiBO2 prepared by melt quenching consists mainly of local arrangements similar to those encountered in all three polymorphs in accordance with the ideas of Krogh-Moe. It is argued that the glass structure exhibits the memory of structural transformations occuring in the vicinity of Tg, and may be described by models implying the existence of structural 'granularity'. © 1990.

引用

页码：42 / 51

页数：10

共 47 条

[1]

AFFATIGATO M, 1990, PHYS CHEM GLASSES, V31, P19

[2] SILVER(I) METABORATE, AGBO2 [J].

BRACHTEL, G ;

JANSEN, M .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1981, 478 (07) :13-19

[3]

Bray P. J., 1963, PHYS CHEM GLASSES, V4, P37

[4]

BUCHLER A, 1963, J CHEM PHYS, V39, P286

[5] STRUCTURAL DISORDER AND ENHANCED ION-TRANSPORT IN AMORPHOUS CONDUCTORS [J].

BUTTON, DP ;

MASON, LS ;

TULLER, HL ;

UHLMANN, DR .

SOLID STATE IONICS, 1983, 9-10 (DEC) :585-592

[6] HIGH PRESSURE - HIGH TEMPERATURE STUDIES .2. DIRECT PREPARATION OF BETA- AND GAMMA-LIBO2 [J].

CHANG, CH ;

MARGRAVE, JL .

MATERIALS RESEARCH BULLETIN, 1967, 2 (10) :929-&

[7]

CHEN LQ, 1984, SOLID STATE IONICS, V14, P149, DOI 10.1016/0167-2738(84)90090-0

[8]

CHRYSSIKOS GD, 1990, IN PRESS MATER SCI B

[9] CRYSTAL DATA OF 2 HIGH PRESSURE PHASES OF SRB2O4 [J].

DERNIER, PD .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY, 1969, B 25 :1001-&

[10]

FUKUMI K, 1988, PHYS CHEM GLASSES, V29, P1

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