SINTERING AND CRYSTALLIZATION BEHAVIOR OF BAO-AL2O3-SIO2 AND BAO-ZNO-AL2O3-SIO2 XEROGEL POWDERS
UNSPECIFIED. (1993) SINTERING AND CRYSTALLIZATION BEHAVIOR OF BAO-AL2O3-SIO2 AND BAO-ZNO-AL2O3-SIO2 XEROGEL POWDERS. PHYSICS AND CHEMISTRY OF GLASSES, 34 (3). pp. 104-108. ISSN 0031-9090Full text not available from this repository.
Homogeneous xerogel powders in the BaO-Al2O3-SiO2 and BaO-ZnO-Al2O3-SiO2 systems were prepared by chemical polymerisation in a sol-gel process. Their sintering behaviour and crystallisation characteristics have been investigated as a function of temperature, time, and composition. The BAS system requires a sintering temperature of 900-960-degrees-C and the BZAS system 840-900-degrees-C to achieve reasonable densities-up to 97%. The BAS system produced hexagonal BAS2 and BS2 phases on devitrification. The BZAS system gave celsian and hexagonal BAS2 and the presence of ZnO facilitated the formation of celsian.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry
T Technology > TP Chemical technology
|Journal or Publication Title:||PHYSICS AND CHEMISTRY OF GLASSES|
|Publisher:||SOC GLASS TECHNOLOGY|
|Official Date:||June 1993|
|Number of Pages:||5|
|Page Range:||pp. 104-108|
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