A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE
Ferrite powder of the present invention is ferrite powder detectable with a metal detector, comprising: hard ferrite particles containing Sr of 7.8 mass% or more and 9.0 mass% or less and Fe of 61.0 mass% or more and 65.0 mass% or less, wherein an amount of Na to be measured by ion chromatography is 1 ppm or more and 200 ppm or less. It is preferable that a volume average particle diameter of the particles constituting the ferrite powder is 0.1 µm or more and 100 µm or less. It is preferable that residual magnetization by a VSM measurement when magnetic field of 10 K·1000/4ÀA/m is applied is 25 A·m 2 /kg or more and 40 A·m 2 /kg or less.
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE
Ferrite powder of the present invention is ferrite powder detectable with a metal detector, comprising: hard ferrite particles containing Sr of 7.8 mass% or more and 9.0 mass% or less and Fe of 61.0 mass% or more and 65.0 mass% or less, wherein an amount of Na to be measured by ion chromatography is 1 ppm or more and 200 ppm or less. It is preferable that a volume average particle diameter of the particles constituting the ferrite powder is 0.1 µm or more and 100 µm or less. It is preferable that residual magnetization by a VSM measurement when magnetic field of 10 K·1000/4ÀA/m is applied is 25 A·m 2 /kg or more and 40 A·m 2 /kg or less.
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE
FERRITPULVER, HARZZUSAMMENSETZUNG UND FORMKÖRPER
POUDRE DE FERRITE, COMPOSITION DE RÉSINE, ET CORPS MOULÉ
AGA KOJI (author) / IGARASHI TETSUYA (author)
2022-05-11
Patent
Electronic Resource
English
IPC:
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
H01F
MAGNETS
,
Magnete
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European Patent Office | 2021