HIGH-TEMPERATURE MASS-SPECTROMETRIC STUDY OF THE B2O3-AL2O3 SYSTEM AT 1248-1850 K

被引：11
|
作者：
STOLYAROVA, VL [1 ]
SHILOV, AL [1 ]
IVANOV, GG [1 ]
SHULTZ, MM [1 ]
SEETHARAMAN, S [1 ]
机构：
[1] RUSSIAN ACAD SCI,INST SILICATE CHEM,ST PETERSBURG 199155,RUSSIA
来源：
RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1995年 / 9卷 / 13期
关键词：
D O I：
10.1002/rcm.1290091306
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The high-temperature mass spectrometric Knudsen effusion method has been used to study the vaporization processes and thermodynamic properties of the B2O3-Al2O3 system in the temperature range 1248-1850 K. Data on the B2O3 partial vapour pressures and the B2O3 activities in the system under consideration were obtained, The enthalpies of formation of Al4B2O9 and Al18B4O33 have been evaluated from the values of the enthalpies of B2O3 sublimation from boron oxide and from these compounds, Comparison is made between the available phase diagram of the B2O3-Al2O3 system and the results obtained in the present study, using the complete isothermal vaporization method.
引用
收藏
页码：1244 / 1251
页数：8
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