METHOD FOR PRODUCING AL-DOPED GADOLINIUM OXYSULFIDE COLD STORAGE MEDIUM

Provided is a cold storage material having a large thermal capacity in a ultra-low temperature range of 10 K or less and being highly durable against thermal shock and mechanical vibration. The cold storage material contains a rare earth oxysulfide ceramic represented by the general formula ROS (whe...

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Bibliographische Detailangaben
Hauptverfasser:	NOZAWA, Hoshiteru, YANAGITANI, Takagimi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS CONCRETE DYES HEAT PUMP SYSTEMS HEATING INORGANIC CHEMISTRY LIGHTING LIME, MAGNESIA LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING SLAG TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	Provided is a cold storage material having a large thermal capacity in a ultra-low temperature range of 10 K or less and being highly durable against thermal shock and mechanical vibration. The cold storage material contains a rare earth oxysulfide ceramic represented by the general formula ROS (wherein R is one or more kinds of rare earth elements selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y), and AlOhaving a specific surface area of 0.3 m/g to 11 m/g is added to the cold storage material.