Novel silicon carbide ceramic and preparation method thereof

The invention belongs to the field of silicon carbide materials, and in particular relates to a novel silicon carbide ceramic and a preparation method thereof. The novel silicon carbide ceramic is prepared from main materials and auxiliary materials, wherein the main materials comprise the following...

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Bibliographic Details
Main Authors JIANG WEIHAI, SONG HECHEN
Format Patent
LanguageChinese
English
Published 02.02.2011
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention belongs to the field of silicon carbide materials, and in particular relates to a novel silicon carbide ceramic and a preparation method thereof. The novel silicon carbide ceramic is prepared from main materials and auxiliary materials, wherein the main materials comprise the following components in percent by mass: 80 to 90 percent of silicon carbide powder, 6 to 10 percent of silicon powder and 4 to 10 percent of carbon powder; and the auxiliary materials comprise a binder and a dispersant, wherein the dosage of the binder is 1 to 5 percent based on the total mass of the main materials; and the dosage of the dispersant is 0.5 to 1 percent based on the total mass of the main materials. The silicon carbide ceramic prepared by the method has the characteristics of high performance, volume density of between 3.05 and 3.10 g/cm , free silicon content of less than 5 percent, hardness of 90 to 93 HRA, and bending strength of between 400 and 450 MPa.
Bibliography:Application Number: CN20101297902