CALORIMETRIC MEASUREMENT OF HEATS OF MIXING OF CUBIC PHASE IN ZRO2-CAO, ZRO2-MGO, AND ZRO2-CAO-MGO SYSTEMS, AND HEAT OF FORMATION OF CA6ZR19O44 COMPOUND

Authors
YIN Y BRYANT AW ARGENT BB
Citation
Y. Yin et al., CALORIMETRIC MEASUREMENT OF HEATS OF MIXING OF CUBIC PHASE IN ZRO2-CAO, ZRO2-MGO, AND ZRO2-CAO-MGO SYSTEMS, AND HEAT OF FORMATION OF CA6ZR19O44 COMPOUND, Materials science and technology, 12(2), 1996, pp. 117-120
Citations number
12
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Materials science and technology → ACNP
ISSN journal
02670836
Volume
12
Issue
2
Year of publication
1996
Pages
117 - 120
Database
ISI
SICI code
0267-0836(1996)12:2<117:CMOHOM>2.0.ZU;2-Q
Abstract
A Tian-Calvet microcalorimeter capable of operating to 1000 degrees C has been used to determine the heats of mixing of the cubic phase in Z rO2-CaO, ZrO2-MgO, and ZrO2-CaO-MgO systems as well as the heat of for mation of Ca6Zr19O44 compound. A power supply voltage monitoring techn ique and a method of determining the calibration constant developed in the work enable good experimental precision to be obtained using a si ngle cell. The drop colorimeter was also used to measure the enthalpy difference of the samples between 298 and 1100 K. (C) 1996 The Institu te of Materials.