Devitrification properties of lead borate glasses

被引：3

作者：

Bajaj, Anu ^{[1
]}

Khanna, Atul ^{[2
]}

Krishnan, K. ^{[3
]}

Aggarwal, Suresh K. ^{[3
]}

机构：

[1] Adesh Inst Engn & Technol, Dept Appl Sci, Faridkot 151203, Punjab, India

[2] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India

[3] Bhabha Atom Res Ctr, Div Fuel Chem, Bombay 400085, Maharashtra, India

来源：

PHASE TRANSITIONS | 2013年 / 86卷 / 06期

关键词：

NUCLEAR-MAGNETIC-RESONANCE; PBO-B2O3; DIFFRACTION; BISMUTH;

D O I：

10.1080/01411594.2012.704036

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Lead borate glasses containing 30 to 60mol% PbO were prepared by melt quenching technique and devitrified by long duration heat treament in the supercooled region. Glasses crystallized on heating above their glass transition temperature, and the crystalline phases produced on devitrification were characterized by XRD and DSC analyses. Glass with 30mol% PbO slowly formed a solid solution of Pb6B10O21 and Pb5B8O17 crystalline phases, while glasses with 40 and 50mol% PbO formed a mixture of Pb6B10O21, Pb5B8O17 and the remanent glassy phase. Glasses with higher PbO concentration of 56 to 60mol% devitrified completely and produced only Pb5B8O17 crystalline phase. Lead borate glasses with PbO concentration of 40 to 50mol% showed maximum thermal stability against devitrification, the ease of crystallization of glasses was correlated with the fraction of tetrahedral borons in them.

引用

页码：541 / 550

页数：10

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