Silicon carbide powder, composition using same, and method for manufacturing silicon carbide powder

A silicon carbide powder according to the present invention is an aggregate of silicon carbide particles containing the element nitrogen. If the powder is measured in a region down to the depth of 12 nm from an outermost surface by X-ray photoelectron spectroscopy, an integral value of a ratio of a...

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Bibliographic Details
Main Authors YOSHIDA, KAZUMA, ENOMOTO, KATSUYOSHI, MUTO, MASARU, OTA, KOYU
Format Patent
LanguageChinese
English
Published 01.01.2023
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS THEREOF
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A silicon carbide powder according to the present invention is an aggregate of silicon carbide particles containing the element nitrogen. If the powder is measured in a region down to the depth of 12 nm from an outermost surface by X-ray photoelectron spectroscopy, an integral value of a ratio of a detection intensity of the element nitrogen to a total detection intensity of the element carbon and the element silicon is 0.05 or greater. Moreover, the slope of a change in the ratio thereof is -0.0008 or less. A specific surface area measured using nitrogen is preferably 5 m2/g to 40 m2/g. Furthermore, the 50% particle diameter D50 in a quantity distribution measured by observation with a scanning electron microscope is preferably 50 nm to 1000 nm. The present invention also provides a method for manufacturing the silicon carbide powder.
Bibliography:Application Number: TW202211110525