COLD-PRESERVING MATERIAL, PARTICLE OF COLD-PRESERVING MATERIAL, GRANULATED PARTICLE, COLD STORAGE DEVICE, REFRIGERATOR, CRYOGENIC PUMP, SUPERCONDUCTING MAGNET, NUCLEAR MAGNETIC RESONANCE IMAGING DEVICE, NUCLEAR MAGNETIC RESONANCE DEVICE, DEVICE FOR GROWING MONOCRYSTAL BY DRAWING USING MAGNETIC FIELD, HELIUM RECONDENSATION PLANT AND DISSOLVING REFRIGERATOR Russian patent published in 2025 - IPC C09K5/14 F25B9/00 

FIELD: chemistry.

SUBSTANCE: cold-preserving material contains oxysulphide of rare-earth element, containing rare-earth element, oxide of rare-earth element with structure of garnet type, containing rare-earth element and Al, and also contains aluminium oxide. Ratio of the intensity of the X-ray diffraction peak of the oxide of the rare-earth element with a garnet-type structure to the intensity of the X-ray diffraction peak of the oxysulphide of the rare-earth element ranges from 0.1% or more to 40% or less.

EFFECT: invention enables to create a cold-retaining material having high volumetric specific heat capacity and high strength.

18 cl, 12 dwg, 1 tbl