SiC powder, SiC sintered body, SiC slurry and manufacturing method of the same
AssigneeKorea Institute of Machinery & Materials
InventorsSea Hoon Lee, Bola Yoon, Jin Myung Kim
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Abstract
A method of manufacturing a silicon carbide (SiC) sintered body and a SiC sintered body obtained by the method are provided. The method includes: preparing a composite powder by subjecting a SiC raw material and a sintering aid raw material to mechanical alloying; and sintering the composite powder, wherein the sintering aid is at least one selected from the group consisting of an Al—C-based material, an Al—B—C-based material, and a B—C-based material. Accordingly, a SiC sintered body that can be sintered at low temperature, can be densified, and has high strength and high electrical conductivity can be prepared.
Claims6
A silicon carbide (SiC) sintered body, comprising:
- a sintering aid,
- wherein
- the sintering aid includes Al,
- the SiC sintered body contains 1.17 to 4.38 wt % Al in grains thereof, and
- the SiC sintered body has a specific resistance of 1 to 10−4Ω·cm.
A SiC slurry, comprising:
- a SiC composite powder;
- and
- a dispersant,
- wherein the content of the dispersant is 0.5 to 2 wt % relative to 100 wt % of the SiC composite powder,
- wherein the SiC composite powder includes a sintering aid,
- wherein the sintering aid includes Al, the SiC composite powder contains 1.17 to 4.38 wt % Al in grains, and the SiC composite powder has a specific resistance of 1 to 10−4Ω·cm.
Dependencies are inferred from the claim text.