The effect of P2O5 on the structure, sintering and sealing properties of barium calcium aluminum boro-silicate (BCABS) glasses

被引：15
作者：
Ananthanarayanan, A. [2 ]
Kothiyal, G. P. [2 ]
Montagne, L. [1 ]
Tricot, G. [1 ]
Revel, B. [1 ]
机构：
[1] Univ Lille Nord France, UMR CNRS 8181, USTL, F-59655 Villeneuve Dascq, France
[2] Bhabha Atom Res Ctr, Glass & Adv Ceram Div, Bombay 400085, Maharashtra, India
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 130卷 / 03期
关键词：
Glass-ceramics; Nucleation; Thermal properties; Sintering; Powder diffraction; NMR; OXIDE FUEL-CELL; SOFC COGENERATION SYSTEM; BOROSILICATE GLASSES; CERAMIC SEALANTS; MAS-NMR; BUILDING APPLICATIONS; PHASE-SEPARATION; ALUMINOSILICATE; CRYSTALLIZATION; PHOSPHATE;
D O I：
10.1016/j.matchemphys.2011.08.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of P2O5 incorporation on the sintering, flow and crystallization characteristics of BCABS glasses of composition (mol%) 35BaO-15CaO-5Al(2)O(3)-(37-x)SiO2-8B(2)O(3)-xP(2)O(5) (0 <= x <= 5) is investigated. It is observed that addition of P2O5, removes cations (Ba2+ and Ca2+) from the silicate network, resulting in an increase in polymerization. This is reflected by a reduction in TEC and an increase in sealing temperature. In addition, the removal of cations for charge compensation causes a change in major crystalline phases formed, from BaSiO3 to Ba(Al2Si2O8). In addition, beyond 3 mol% P2O5, crystallization of phosphate phases is evident. Based upon the flow temperature, glasses with 0, 1 and 2 mol% P2O5 are selected for sealing. In these glasses, conversion of Cr to Cr2O3 is observed, yielding improved adhesion. However, the 2 mol% P2O5 glass showed an increased crystallization tendency, resulting in incomplete sintering. Therefore, mol% P2O5 seems a good compromise for sealing with improved adhesion. (C) 2011 Elsevier B.V. All rights reserved.
引用
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页码：880 / 889
页数：10
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