Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate
2009-01-08
2010-11-16
Group, Karl E (Department: 1793)
Compositions: ceramic
Ceramic compositions
Refractory
C501S098400, C501S153000, C264S044000, C264S643000, C264S673000
Reexamination Certificate
active
07833922
ABSTRACT:
Methods of forming aluminum oxynitride (AlON) materials include sintering green bodies comprising aluminum orthophosphate or another sacrificial material therein. Such green bodies may comprise aluminum, oxygen, and nitrogen in addition to the aluminum orthophosphate. For example, the green bodies may include a mixture of aluminum oxide, aluminum nitride, and aluminum orthophosphate or another sacrificial material. Additional methods of forming aluminum oxynitride (AlON) materials include sintering a green body including a sacrificial material therein, using the sacrificial material to form pores in the green body during sintering, and infiltrating the pores formed in the green body with a liquid infiltrant during sintering. Bodies are formed using such methods.
REFERENCES:
patent: 3821005 (1974-06-01), Layden
patent: 4241000 (1980-12-01), McCauley et al.
patent: 4459156 (1984-07-01), Henslee et al.
patent: 4481300 (1984-11-01), Hartnett et al.
patent: 4520116 (1985-05-01), Gentilman et al.
patent: 4636374 (1987-01-01), Kurihara et al.
patent: 4686070 (1987-08-01), Maguire et al.
patent: 4720362 (1988-01-01), Gentilman et al.
patent: 4977113 (1990-12-01), Phelps et al.
patent: 5075265 (1991-12-01), Narula
patent: 5135814 (1992-08-01), Dekosky
patent: 5221558 (1993-06-01), Sonuparlak et al.
patent: 5231062 (1993-07-01), Mathers et al.
patent: 5260241 (1993-11-01), Addiego et al.
patent: 5456306 (1995-10-01), Aghajanian et al.
patent: 5480676 (1996-01-01), Sonuparlak et al.
patent: 5487420 (1996-01-01), Newkirk
patent: 5688730 (1997-11-01), Bachelard et al.
patent: 5707442 (1998-01-01), Fogel et al.
patent: 6156686 (2000-12-01), Katsuda et al.
patent: 6740299 (2004-05-01), Carini et al.
patent: 6955798 (2005-10-01), Miao
patent: 7045091 (2006-05-01), Patel et al.
patent: 7163656 (2007-01-01), Gilde et al.
patent: 7247589 (2007-07-01), Krell et al.
patent: 7247591 (2007-07-01), Wei
patent: 7368406 (2008-05-01), Yeckley et al.
patent: 7459122 (2008-12-01), Chu et al.
Allaf et al., “Décomposition thermique des phosphates II. Le phosphate d'aluminum Al PO4,” Rev. Int. hautes Termpér. Refract., vol. 19, 1982, pp. 88-89.
Benitez et al., “Study of the Stability of AlPON Catalysts in an Aqueous Environment,” Journal of the European Ceramic Society, v. 17, 1997, p. 1979.
Clay et al., “Effect of LiAl5O8 additions on the sintering and Optical Transparency of LiAlON,” Journal of the European Ceramic Society, vol. 26, 2006, pp. 1351-1362.
Corbin, Normand D., “Aluminum Oxynitride Spinel: A Review,” Journal of the European Ceramic Society, vol. 5, 1989, pp. 143-154.
Granon et al., “Aluminum Magnesium Oxynitride: A New Transparent Spinel Ceramic,” J. European Ceramic Society, vol. 15, 1995, pp. 249-254.
Grover et al., “Low-Temperature Synthesis of Berlinite-Bonded Alumina Ceramics,” American Ceramic Society Annual Meeting, 1999.
Kingery, William D., “Fundamental Study of Phosphate Bonding in Refractories,” Journal of the American Ceramic Society, Aug. 1950, pp. 239-250.
Martin et al., “Synthesis and Hot Pressing of Transparent Aluminum Oxynitride,” SPIE vol. 1112 Window and Dome Technologies and Materials, 1989, pp. 20-24.
McCauley et al., “High Temperature Reactions and Microstructures in the Al203-AIN System,” Progress in Nitrogen Ceramics, ed. F.L. Riley, Martinus Nijhoff. Boston, MA, 1983, pp. 111-118.
McCauley et al., “Phase Relations and Reaction Sintering of Transparent Cubic Aluminum Oxynitride Spinel (ALON),” J. Am. Ceram. Soc., 62, 1979, pp. 476-479.
Michel et al., “Oxynitride Formation during Alumina Fusion in Air in the Presence of Aluminum,” C.R. Acad. Sci. Ser. C, 263, 1966, p. 1366.
Olhero et al., “Thermodynamic Studies on the AIN Sintering Powders Treated with Phosphate Species,” Journal of the American Ceramic Society, 90 [11] 3589-3595, 2007.
Taguchi et al., “Infiltration of Al2O3/Y2O3 Mix into SiC Ceramic Preforms,” Ceramics International, vol. 34, 2008, pp. 625-629.
Toy et al., “Phosphate Bonding with Several Calcined Aluminas,” Ceramics International, 15, 1989, p. 167.
Trumble, K. P., “Spontaneous Infiltration of Non-Cylindrical Porosity: Close-Packed Spheres,” Acta. Mater. vol. 46, No. 7, 1998, pp. 2363-2367.
Wagh et al., “Chemically Bonded Phosphate Ceramics,” Journal of the American Ceramic Society, 86 [11] p. 138.
Willems et al., “Mechanical properties of γ-aluminium oxynitride,” Journal of Materials Science, vol. 28, 1993, pp. 6185-6189.
Zheng et al., “Carbothermal Synthesis of Aluminum Oxynitride (ALON) Powder: Influence of Starting Materials and Synthesis Parameters,” Journal of the European Ceramic Society, vol. 15, 1995, pp. 1087-1100.
Bakas Michael P.
Chu Henry S.
Lillo Thomas M.
Battelle Energy Alliance, LLC
Group Karl E
TraskBritt
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