Magnesium oxide powder, production method therefor, thermally-conductive resin composition, thermally-conductive grease, and thermally-conductive coating material

A magnesium oxide powder has: a median diameter (D50) of 5 to 100 μm; a MgO purity of 98% by mass or more; a Ca compound content of 2% by mass or less in terms of CaO; and when the magnesium oxide powder is immersed in pure water and allowed to stand at 95° C. for 24 hours, a mass ratio of calcium i...

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Bibliographische Detailangaben
Hauptverfasser:	Arase, Takashi, Nishida, Naoto, Nakamura, Koji
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CHEMISTRY COMPOSITIONS BASED THEREON MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POWDER METALLURGY THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A magnesium oxide powder has: a median diameter (D50) of 5 to 100 μm; a MgO purity of 98% by mass or more; a Ca compound content of 2% by mass or less in terms of CaO; and when the magnesium oxide powder is immersed in pure water and allowed to stand at 95° C. for 24 hours, a mass ratio of calcium ions to magnesium ions, Ca/Mg, in an aqueous solution of 10 or less.