TABULAR ALUMINA PARTICLES AND METHOD OF PRODUCING TABULAR ALUMINA PARTICLES

TABULAR ALUMINA PARTICLES AND METHOD OF PRODUCING TABULAR ALUMINA PARTICLES

To provide plate-like alumina particles that are less likely to wear apparatuses.Plate-like alumina particles containing germanium or a germanium compound. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or more as determined in an XPS analysis. The pla...

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Bibliographische Detailangaben
Hauptverfasser: OKI, Hironobu, TAKADA, Shingo, SANO, Yoshiyuki, YUAN, Jian-Jun, ITOYA, Kazuo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Beschreibung
Zusammenfassung:To provide plate-like alumina particles that are less likely to wear apparatuses.Plate-like alumina particles containing germanium or a germanium compound. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or more as determined in an XPS analysis. The plate-like alumina particles preferably contain the germanium or germanium compound in a surface layer. The plate-like alumina particles preferably have a density of 3.7 g/cm3 or more and 4.1 g/cm3 or less. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or less as determined in an XRF analysis.