1976
DOI: 10.1002/srin.197603777
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Keramische Eigenschaften von Calciumzirkonat bei Temperaturen bis 1600 °C

Abstract: Zusammenstellung von Schrifttumsangaben über Kristallstruktur, Zustandsbereich und thermische Ausdehnung von Calciumzirkonat CaZrO3 und mit Calciumoxid stabilisiertem Zirkonoxid ZrO2 im Hinblick auf den Einsatz des CaZrO3 als Festelektrolyt zur Messung der Sauerstoffaktivität in Metallschmelzen. Untersuchung des Sinterverhaltens, der Gefügeausbildung und der Temperaturwechselbeständigkeit von Calciumzirkonat mit ZrO2‐ oder CaO‐Überschuß. Voraussetzungen für die Herstellung gasdichter CaZrO3‐Formkörper und Nach… Show more

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Cited by 5 publications
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“…The powders prepared this way maintain several drawbacks, like a lack of reproducibility, a large particle size, wide size distribution, strong agglomeration and chemical inhomogeneity. It is difficult to obtain dense ceramics (∼95% of theoretical density) below a sintering temperature of 1600 • C. The CaZrO 3 -based samples with CaO inclusions applied by Janke, as solid electrolytes in electrochemical oxide probes, showed a significant porosity (15-20%) depending on chemical composition and sintering temperature (1600-1800 • C) [15]. Moreover, at temperatures higher than 1750 • C unfavourable microstructural changes can occur due to phase transition of the orthorhombic CaZrO 3 to the cubic form [16].…”
Section: Introductionmentioning
confidence: 99%
“…The powders prepared this way maintain several drawbacks, like a lack of reproducibility, a large particle size, wide size distribution, strong agglomeration and chemical inhomogeneity. It is difficult to obtain dense ceramics (∼95% of theoretical density) below a sintering temperature of 1600 • C. The CaZrO 3 -based samples with CaO inclusions applied by Janke, as solid electrolytes in electrochemical oxide probes, showed a significant porosity (15-20%) depending on chemical composition and sintering temperature (1600-1800 • C) [15]. Moreover, at temperatures higher than 1750 • C unfavourable microstructural changes can occur due to phase transition of the orthorhombic CaZrO 3 to the cubic form [16].…”
Section: Introductionmentioning
confidence: 99%