Invention Grant
- Patent Title: Porous SiC ceramic and method for the fabrication thereof
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Application No.: US14240543Application Date: 2012-08-24
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Publication No.: US09919975B2Publication Date: 2018-03-20
- Inventor: Jamal Chaouki , Omid Ebrahimpour , Charles Dubois
- Applicant: Jamal Chaouki , Omid Ebrahimpour , Charles Dubois
- Applicant Address: CA Montreal
- Assignee: POLYVALOR, LIMITED PARTNERSHIP
- Current Assignee: POLYVALOR, LIMITED PARTNERSHIP
- Current Assignee Address: CA Montreal
- Agent Beatrice Ngatcha
- International Application: PCT/CA2012/050586 WO 20120824
- International Announcement: WO2013/026168 WO 20130228
- Main IPC: C04B35/565
- IPC: C04B35/565 ; C04B38/06 ; C04B35/626 ; C04B35/628 ; C04B35/63 ; C04B35/634 ; C04B38/00 ; C04B111/00

Abstract:
There is provided a method for the fabrication of porous SiC ceramic. The method comprises oxidizing particles of SiC ceramic thereby forming amorphous silica on the surface of the particles. The oxidized SiC particles are then mixed with an additive. Alternatively, layer(s) of the additive is (are) deposited on their surface by sol-gel technique. The oxidized SiC particles mixed or coated with the additive are then mixed with at least one pore-former. Alternatively, the oxidized SiC particles mixed or coated with the additive are coated with layer(s) of a polymer or pore-former by in-situ polymerization. In embodiments where the oxidized SiC particles are mixed with an additive and a pore-former or polymer, a further additive may be used. In each of these embodiments, the resulting product is then compacted into a green body which is heated and sintered to yield the porous SiC ceramic material. There is also provided a porous SiC ceramic fabricated by the method according to the invention.
Public/Granted literature
- US20140206525A1 POROUS SiC CERAMIC AND METHOD FOR THE FABRICATION THEREOF Public/Granted day:2014-07-24
Information query
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