A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Negative thermal expansion material and composite material comprising same
The present application provides a negative thermal expansion material having excellent dispersibility and packing properties in a positive thermal expansion material. The negative thermal expansion material of the present invention comprises spherical zirconium tungsten phosphate having a BET specific surface area, of 2 m2/g or smaller. The degree of sphericity is preferably 0.90 or more and 1 or less. Also preferably, the negative thermal expansion material further contains at least Mg and/or V as a subcomponent element. Also preferably, the content of the subcomponent element is 0.1% by mass or more and 3% by mass or less. Also preferably, the average particle size is 1 μm or larger and 50 μm smaller.
Negative thermal expansion material and composite material comprising same
The present application provides a negative thermal expansion material having excellent dispersibility and packing properties in a positive thermal expansion material. The negative thermal expansion material of the present invention comprises spherical zirconium tungsten phosphate having a BET specific surface area, of 2 m2/g or smaller. The degree of sphericity is preferably 0.90 or more and 1 or less. Also preferably, the negative thermal expansion material further contains at least Mg and/or V as a subcomponent element. Also preferably, the content of the subcomponent element is 0.1% by mass or more and 3% by mass or less. Also preferably, the average particle size is 1 μm or larger and 50 μm smaller.
Negative thermal expansion material and composite material comprising same
FUKAZAWA JUNYA (author) / HATA TORU (author)
2019-05-07
Patent
Electronic Resource
English
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
/
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
Negative thermal expansion material and composite material
| European Patent Office | 2024
NEGATIVE THERMAL EXPANSION MATERIAL AND COMPOSITE MATERIAL
| European Patent Office | 2023
NEGATIVE THERMAL EXPANSION MATERIAL AND COMPOSITE MATERIAL
| European Patent Office | 2023
NEGATIVE THERMAL EXPANSION MATERIAL AND COMPOSITE MATERIAL
| European Patent Office | 2023
| European Patent Office | 2024