Non-isothermal crystallization of La2O3 center dot B2O3 center dot 2GeO(2) glasses

被引：25

作者：

Sigaev, VN ^{[1
]}

Lopatina, EV ^{[1
]}

Sarkisov, PD ^{[1
]}

Marotta, A ^{[1
]}

Pernice, P ^{[1
]}

机构：

[1] UNIV NAPLES FEDERICO II,DEPT MAT & PROD ENGN,I-80125 NAPLES,ITALY

来源：

THERMOCHIMICA ACTA | 1996年 / 286卷 / 01期

关键词：

DTA; LaBGeO5; lanthanide borogermanate glasses; non-isothermal crystallization; surface nuclei crystallization; X-ray diffraction;

D O I：

10.1016/0040-6031(96)02935-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The non-isothermal crystallization of lanthanum borogermanate glasses, of stoichiometry LaBGeO5 has been studied by differential thermal analysis. The phase that crystallizes during the DTA runs was identified by X-ray diffraction as the stillwellite-like LaBGeO5. In the glasses studied, crystallization from surface nuclei was found to be dominant. The activation energy of crystal growth, evaluated from DTA curves, was about 465 kJ mol(-1).

引用

页码：25 / 31

页数：7

共 21 条

[1] NUCLEATION AND GROWTH OF LEAD TITANATE FROM A GLASS [J].

BERGERON, CG ;

RUSSELL, CK .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1965, 48 (03) :115-&

[2]

BINDAL VN, 1989, P BRIT CERAMIC SOC, V41, P171

[3] THE APPLICATION OF DIFFERENTIAL THERMAL ANALYSIS TO THE STUDY OF REACTION KINETICS [J].

BORCHARDT, HJ ;

DANIELS, F .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (01) :41-46

[4]

BURI A, 1975, J MATER SCI, V10, P961

[5] ENHANCED SURFACE CRYSTALLIZATION OF BETA-BARIUM BORATE ON GLASS DUE TO ULTRASONIC TREATMENT [J].

DING, Y ;

OSAKA, A ;

MIURA, Y .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (03) :749-752

[6] PYROELECTRIC LI2SI2O5 GLASS-CERAMICS [J].

GARDOPEE, GJ ;

NEWNHAM, RE ;

BHALLA, AS .

FERROELECTRICS, 1981, 33 (1-4) :155-163

[7] POLAR GLASS-CERAMICS [J].

HALLIYAL, A ;

BHALLA, AS ;

NEWNHAM, RE ;

CROSS, LE .

FERROELECTRICS, 1981, 38 (1-4) :781-784

[8]

HALLIYAL A, 1982, J MATER SCI, V177, P295

[9] HETEROGENEOUS BULK NUCLEATION AND DIFFERENTIAL THERMAL-ANALYSIS [J].

MAROTTA, A ;

BURI, A ;

BRANDA, F .

JOURNAL OF THERMAL ANALYSIS, 1981, 21 (02) :227-233

[10] SURFACE AND BULK CRYSTALLIZATION IN NON-ISOTHERMAL DEVITRIFICATION OF GLASSES [J].

MAROTTA, A ;

BURI, A ;

BRANDA, F .

THERMOCHIMICA ACTA, 1980, 40 (03) :397-403

← 1 2 3 →