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Methods of producing cermet materials and methods of utilizing same



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Patent 7470393
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Document Number
US Patent 7470393
Issued Date
December 30, 2008
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Inventors
Kong; Peter C. (Idaho Falls, ID)
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Abstract
Methods of fabricating cermet materials and methods of utilizing the same such as in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The cermet material may be made from a transition metal aluminide phase and an alumina phase. The mixture may be pressed to form a green compact body and then heated in a nitrogen-containing atmosphere so as to melt aluminum particles and form the cermet. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The cermet material may also be formed so as to pass an electrical current therethrough to heat the material during use.
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Number of Claims:
32
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Published
December 30, 2008
Application Number
11/067,395
Filed
February 25, 2005
US Classification
419/19   419/10 419/15 419/32 419/45 423/210 502/414 502/439 55/282.2 55/282.3 55/385.3 55/523
Int'l Classification
C22C   32/00   (20060101)   B01D   39/20   (20060101)   B01D   46/24   (20060101)   B01J   20/00   (20060101)   B01J   8/00   (20060101)   B22F   1/00   (20060101)   C22C   1/04   (20060101)  
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Assistant Examiner
Parent Case
CROSS REFERENCE TO RELATED APPLICATIONS This Application is a Divisional of U.S. application Ser. No. 10/213,112 entitled METHOD OF FABRICATING CERMET MATERIALS AND METHOD OF UTILIZING SAME, filed on Aug. 5, 2002 now U.S. Pat. No. 7,022,647: Applicant Notes U.S. application Ser. No. 10/213,120 entitled CERMET MATERIALS, SELF-CLEANING CERMET FILTERS, APPARATUS AND SYSTEMS EMPLOYING SAME, filed on Nov. 4, 2002 claims priority to the above referenced U.S. application Ser. No. 10/213,112.
USPTO Field of Search
419/19   55/282.3  
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