Chemistry of inorganic compounds – Nitrogen or compound thereof – Oxygen containing
Reexamination Certificate
2007-12-18
2007-12-18
Langel, Wayne A. (Department: 1754)
Chemistry of inorganic compounds
Nitrogen or compound thereof
Oxygen containing
Reexamination Certificate
active
11411611
ABSTRACT:
A process of making aluminum oxynitride powder including the steps of: forming a powder mixture by mixing alumina powder and aluminum nitride powder according to the following formula: ((4−x)/3) alumina and x aluminum nitride wherein x is in mole percent and ranges between about 0.31 and about 0.61; adding between about 0.1 mole percent and about 1.0 mole percent of pure aluminum powder to the powder mixture; and reacting the powder mixture containing aluminum at a temperature between about 1600° C. and about 1900° C. for a duration between about 2 hours and about 24 hours in a flowing nitrogen atmosphere so as to form aluminum oxynitride.
REFERENCES:
patent: 4241000 (1980-12-01), McCauley et al.
patent: 4320203 (1982-03-01), Brandt et al.
patent: 4481300 (1984-11-01), Hartnett et al.
patent: 4520116 (1985-05-01), Gentiman et al.
patent: 4543345 (1985-09-01), Wei
patent: 4636374 (1987-01-01), Kurihara et al.
patent: 4686070 (1987-08-01), Maguire et al.
patent: 4720362 (1988-01-01), Gentiman et al.
patent: 4745091 (1988-05-01), Landingham
patent: 4786448 (1988-11-01), Fukuhara et al.
patent: 4789277 (1988-12-01), Rhodes et al.
patent: RE32843 (1989-01-01), Wei
patent: 4801564 (1989-01-01), Baba
patent: 4946808 (1990-08-01), Wei et al.
patent: 4948761 (1990-08-01), Hida
patent: 4957885 (1990-09-01), Hida
patent: 4961757 (1990-10-01), Rhodes et al.
patent: 5053363 (1991-10-01), Brandt
patent: 5075265 (1991-12-01), Narula
patent: 5096862 (1992-03-01), Mathers et al.
patent: 5132257 (1992-07-01), Kodama et al.
patent: 5135814 (1992-08-01), Dekosky
patent: 5231062 (1993-07-01), Mathers et al.
patent: 5254142 (1993-10-01), Johansson et al.
patent: RE34446 (1993-11-01), Wei
patent: 5352533 (1994-10-01), Dreyer et al.
patent: 5378417 (1995-01-01), Yasutomi et al.
patent: 5389586 (1995-02-01), Rogers et al.
patent: 5398858 (1995-03-01), Dugan et al.
patent: 5418197 (1995-05-01), Brandt
patent: 5420083 (1995-05-01), Brandt
patent: 5449647 (1995-09-01), Brandt
patent: 5538926 (1996-07-01), Tsuchida et al.
patent: 5656561 (1997-08-01), Rogers et al.
patent: 5688730 (1997-11-01), Bachelard et al.
patent: 5955390 (1999-09-01), Mehrotra et al.
patent: 5994250 (1999-11-01), Suzuki et al.
patent: 6169048 (2001-01-01), Sjogren et al.
patent: 6204213 (2001-03-01), Mehrotra et al.
patent: 6447896 (2002-09-01), Augustine
patent: 6454822 (2002-09-01), Rosenflanz
patent: 6458731 (2002-10-01), Rosenflanz
patent: 6605556 (2003-08-01), Bose
patent: 6620756 (2003-09-01), Mah et al.
patent: 6955798 (2005-10-01), Miao
patent: 7045091 (2006-05-01), Patel et al.
patent: 7071139 (2006-07-01), Gole
patent: 0 357 579 (1993-01-01), None
patent: 0 247 630 (1996-01-01), None
patent: 0 496 712 (1996-04-01), None
patent: 0 619 269 (1998-01-01), None
patent: 0 861 219 (2002-03-01), None
patent: 0 927 709 (2002-10-01), None
patent: 58-135112 (1983-08-01), None
patent: 64-061375 (1989-03-01), None
patent: 7126077 (1995-05-01), None
patent: 11-092228 (1999-04-01), None
patent: WO 97/18177 (1997-05-01), None
patent: WO 02/06156 (2002-01-01), None
Y. Berriche et al., “Severe Wear Mechanisms in AI2O3-AION Ceramic Composites”, Jor. Ep. Cer. Soc. 20 (2002) pp. 1311-1318, no month.
T, Mroz, Jr. et al., “Fabrication of AIN-SiC Whisker Composites”, Cer. Sci. Proceedings (9-10) 1993 pp. 1098-1107, no month.
D. Djenkal et al., “SiC-Reinforcement of an AI2O3-yAION Composite”, Jor. Ep. Cer. Soc. (2000) pp. 2585-2590, no month.
Shimpo et al., “AION and its Composite Ceramics” Jor. Cer. Soc. Japan, Intl. Edition Vo. 100-508 (no date).
Whitney, E.D., “Modern Ceramic Cutting Tool Materials”, 1982 AMS Metals Congress, St. Louis, Missouri (Oct. 23-28, 1982) pp. 1-16.
Rayethon Press Release on Aluminum Oxynitride (Jul. 25, 2002) 2 pages.
Surmet Corp. Press Release on Aluminium Oxynitride (Jul. 22, 2002) 1 page.
Internet Printout on “AION” entitled A Tough, New, Light Weight, Transparent Ceramic Material May Hold the Key to Better Protection for Flight Crews (2 pages)Printed Oct. 2003.
Internat Article from Nanomet,Inc. entitled “Cost Effective Processing of High-Purity Gamma Aluminum Oxynitride” (3 pages) (printed Oct. 2003).
Brochure entitled “Transparent Armor Systems” from the U.S. Army Research Laboratory (2 pages) (no date).
Materials and Manufacturing Directorate, Air Force Research LAboratory (Spring 2003) 4 pages, no month.
Internet Printout entitled “Aluminum Oxynitride (AION)” by Sienna Technologies, Inc. (1 page) (no date).
Surmet Property Data Sheet for AION Optical Ceramic (1 page) (no date).
Zuotai et al., “Manufacture and Properties of AION-TiN Particulate Composites”, Materails and Design 26 (2005) pp. 363-368, no month.
Djenkal et al., “Elaboration and Mechanical Properties of AI2O3-yAION-SiC Composite for Cutting Tool Applications”, Fourth Euro Ceramics, vol. 4 pp. 201-208 (no date).
PCT International Search Report mailed Nov. 9, 2005 for PCT International application No. PCT/US05/13123.
PCT Written Opinion mailed Nov. 9, 2005 for PCT International application No. PCT/US05/13123.
PCT International Search Report mailed Mar. 29, 2006 for PCT International application No. PCT/US05/13123.
Wu Shanghua
Yeckley Russeli L.
Langel Wayne A.
Prizzi John J.
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