Crystallization study of Na-Gd phosphate glass using non-isothermal DTA

被引：16

作者：

Nitsch, K. ^{[1
]}

Rodova, M. ^{[1
]}

机构：

[1] Acad Sci Czech Republic, Inst Phys, Prague 16253 6, Czech Republic

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 91卷 / 01期

关键词：

glass crystallization kinetics; Na-Gd phosphate glasses; optical thermomicroscopy;

D O I：

10.1007/s10973-007-8375-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Na-Gd phosphate glasses doped with Ce3+ are intensively studied due to their high intensity radioluminescence. Crystallization kinetics of glass with nominal composition of NaGd(PO3)(4) was investigated using non-isothermal DTA at heating rates between 10 and 115 K min(-1) and evaluated by the Kissinger and Ozawa peak methods. The activation energy for crystallization was determined for heating rates lower than 72 Kmin(-1) as 789.91 and 802.77 kJ mol(-1) by using the Kissinger and Ozawa methods, respectively. Formation of nuclei, their dimensions and movement of the crystallization front were observed using isothermal optical thermomicroscopy.

引用

页码：137 / 140

页数：4

共 11 条

[1] Effect of thallium on the crystallization kinetics of the chalcogenide glasses GeSe2 and GeSe4 [J].

Abdel-Aziz, MM .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2005, 79 (03) :709-714

[2] Ce3+ or Tb3+-doped phosphate and silicate scintillating glasses [J].

Baccaro, S ;

Dall'Igna, R ;

Fabeni, P ;

Martini, M ;

Mares, JA ;

Meinardi, F ;

Nikl, M ;

Nitsch, K ;

Pazzi, GP ;

Polato, P ;

Susini, C ;

Vedda, A ;

Zanella, G ;

Zannoni, R .

JOURNAL OF LUMINESCENCE, 2000, 87-9 :673-675

[3] DSC studies on sodium phosphate glasses doped with chlorides of Cd, Co and Ag [J].

Das, SS ;

Singh, P .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2004, 78 (03) :731-738

[4]

Kashchiev D., 2000, NUCLEATION

[5] SODIUM NEODYMIUM METAPHOSPHATE NANDP4O12 [J].

KOIZUMI, H .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1976, 32 (JUL15) :2254-2256

[6] Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses [J].

Nikl, M ;

Nitsch, K ;

Mihokova, E ;

Solovieva, N ;

Mares, JA ;

Fabeni, P ;

Pazzi, GP ;

Martini, M ;

Vedda, A ;

Baccaro, S .

APPLIED PHYSICS LETTERS, 2000, 77 (14) :2159-2161

[7] Na-Gd phosphate glasses -: Preparation, thermal and scintillating properties [J].

Nitsch, K ;

Cihlár, A ;

Klimm, D ;

Nikl, M ;

Rodová, M .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2005, 80 (03) :735-738

[8] The non-isothermal crystallization kinetics of Sb2S3 in the (GeS2)0.2(Sb2S3)0.8 glass [J].

Pustková, P ;

Svadlák, D ;

Shánelová, J ;

Málek, J .

THERMOCHIMICA ACTA, 2006, 445 (02) :116-120

[9] Preparation and properties of Ce-doped Na-Gd phosphate glasses [J].

Rodová, A ;

Cihlár, A ;

Knízek, K ;

Nitsch, K ;

Solovieva, N .

RADIATION MEASUREMENTS, 2004, 38 (4-6) :489-492

[10] Crystallization kinetic of fluoro-zirconate glasses by non-isothermal analysis [J].

Silva, DV ;

Ribeiro, CA ;

Crespi, MS .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2003, 72 (01) :151-157

← 1 2 →