Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Reexamination Certificate
2008-07-22
2008-07-22
Group, Karl E (Department: 1793)
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
C501S127000
Reexamination Certificate
active
11649079
ABSTRACT:
A ceramic body that includes between about 15 volume percent and about 35 volume percent of a boron carbide irregular-shaped phase, and at least about 50 volume percent alumina, and the ceramic body has a fracture toughness (KIC, 18.5 Kg Load E&C) greater than or equal to about 4.5 MPa·m0.5.
REFERENCES:
patent: 4343909 (1982-08-01), Adams et al.
patent: 4366254 (1982-12-01), Rich et al.
patent: 4463058 (1984-07-01), Hood et al.
patent: 4474728 (1984-10-01), Radford
patent: 4543343 (1985-09-01), Iyori et al.
patent: 4745091 (1988-05-01), Landingham
patent: 4789277 (1988-12-01), Rhodes et al.
patent: 4804643 (1989-02-01), Chyung et al.
patent: 4826630 (1989-05-01), Radford et al.
patent: 4886768 (1989-12-01), Tien
patent: 4946807 (1990-08-01), Okuno et al.
patent: 4959331 (1990-09-01), Mehrotra et al.
patent: 4961757 (1990-10-01), Rhodes et al.
patent: 5059564 (1991-10-01), Mehrotra et al.
patent: 5162270 (1992-11-01), Ownby et al.
patent: 5164345 (1992-11-01), Rice et al.
patent: 5194073 (1993-03-01), Winter et al.
patent: 5271758 (1993-12-01), Buljan et al.
patent: 5279191 (1994-01-01), Buljan et al.
patent: 5370716 (1994-12-01), Mehrotra et al.
patent: 5398858 (1995-03-01), Dugan et al.
patent: 5404836 (1995-04-01), Milewski
patent: 5688729 (1997-11-01), Andersson et al.
patent: 5718541 (1998-02-01), Bryant
patent: 6204213 (2001-03-01), Mehrotra et al.
patent: 6383963 (2002-05-01), Yamamoto et al.
patent: 6417126 (2002-07-01), Yang
patent: 6447896 (2002-09-01), Augustine
patent: 6905992 (2005-06-01), Mehrotra et al.
patent: 7087544 (2006-08-01), Satcher et al.
patent: 2002/0195752 (2002-12-01), Yang
patent: 2003/0008761 (2003-01-01), Yang
patent: 2003/0224924 (2003-12-01), Satcher et al.
patent: 0 194 881 (1989-06-01), None
patent: 0 366 234 (1992-09-01), None
patent: 0 506 640 (1992-09-01), None
patent: 0 335 602 (1993-12-01), None
patent: 0 579 587 (1994-01-01), None
patent: 0 584 051 (1994-02-01), None
patent: 0 208 910 (1996-11-01), None
patent: 2-307862 (1990-12-01), None
patent: 3-137061 (1991-06-01), None
patent: HEI 3-137061 (1991-06-01), None
patent: 63282158 (1998-11-01), None
patent: WO 92/07102 (1992-04-01), None
patent: WO 2003/011782 (2003-02-01), None
Dorre et al.,“Alumina, Processing, Properties, Properties, and Applications”, Springer-Verlag (1984) pp. 254-265.
Whitney, “Modern Ceramic Cutting Tool Materials”, Presentation at Oct. 1982 ASM Metals Congress in St. Louis, MO, pp. 1-16.
Billman, “Machining with AI2O3-SiC Whisker Cutting Tools” Ceramic Bulletin, vol. 67 No. 6 (1998) pp. 1016-1019.
Liu & Ownby, “Physical Properties of Alumina-Boron Carbide Whisker/ Particle Composites”, Ceramic Eng. Sci. Pro.12 (7-8)pp. 1245-1253 (1991).
Liu et al., “Boron Containing Ceramic Particulate and Whisker Enhancment of Fracture Toughness of Ceramic Matrix”, (1991) American Institute of Physics, pp. 574-577.
Liu et al., “Boron Carbide Reinforced Alumina Composites”, Journal American Ceramic Society 74 (3) (1991) pp. 674-677.
Jung et al., “Sintering and Characterization of AI2O3-B4C Composites”, Journal of Material Science 26 (19991) pp. 5037-5040.
E. Dow Whitney et al., “New and Improved Cutting Tool Materials”, Air Force Report AFML-TR-69-50 (1969) pp. 7, 114, 119-126, 186, 188, 197,339-340,368-369.
Lin et al.,“Densification of B4CWhisker Reinforced AI2O3 Matrix Composites”, Proceedings from First China International Conference, (Oct. 1998, Beijing) pp. 415-419.
Liu et al., “Enhanced Mechanical Properties of Alumina of Dispersed Titanium Diboride Particulate Inclusions”, Jr. Am. Ceramic Soc. 74(1) pp. 241-243 (1991).
Sato et al.,“Sintering and Fracture Behavior of Composites Based on Alumina-Zirconia (Yttria)-Nonoxides”, Journal de Physique, Colc CI, No. 2, Tome 47 (Feb. 1986) pp. CI733-CI737.
Becher, “Microstructural Design of Toughened Ceramics” Jr. Am. Ceramic Soc. 74 (2) (1991) pp. 255-269.
Becher, “Recent Advances in Whisker-Reinforced Ceramics”, Annu. Rev. Materials Sci. 1990 20:179-95.
Belyaev et al., “Properties of AI2O3-B4C Samples Obtained By the Hot Pressing Method”, Translated from Neorganicheskie Materialy, vol. 22 No. 6 pp. 960-962 (Jun. 1986).
Brook et al., “Nanocomposite Materials”, Materials World, Jan. 1993 pp. 27-30.
Cameron et al.,“A Comparison of Reaction vs Conventionally Hot-Pressed Ceramic Composites”, Ceram. Eng. Sci. Proc. 11 (9-10) 1990 pp. 1190-1202.
Fisher, “Internal Audits Assure Quality Control”, Ceramic Industry, Mar. 1983 pp. 36-38.
Grearson et al., “Wear of Ceramics in Grit Blasting”, Br. Ceram. Trans. J., 88, pp. 213-218 (1989).
Green et al., “Hardness, Friction an Wear Engineering Ceramics in the Temperature Range 20-1500C”, Journal of Hard Materials, vol. 3, No. 2 (1992) pp. 169-183.
Lin et al. “Pressureless Sintering of B4C Whisker Reinforced AI2O3 Matrix Composites”, Journ. Mater. Sci. 35, (2000) pp. 411-418.
Lin et al., “Mechanical Behavior Microstructure and Phase Composition of Free Sintered AI2O3-B4C Whiser Composites”, Cer. Engineer Sci.Pro., vol. 17 No. 3 pp. 273-277 (1996).
Liu et al.,“Boron Carbide Whisker and Platelet Reinforced Ceramic Matrix Composites”, Journ. Cer. Eng. Sci. Proc. (1992) vol. 13 No. 9-10 pp. 696-703.
Milewski et al., “Whiskers” Journal Handb. Fillers Reinf. Plast. (1978) pp. 446-464.
Moon et al. “Plasma Sintering of AI2O3-B4C Composites”, Journal of Mater. Synthesis and Proc., vol. 3 No. 2 (1995) pp. 115-120.
Radford, “Sintering AI2O3-B4C Ceramics” Journal of Materials Science 18 (1983) pp. 669-678.
Rice, “Machanisms of Toughening in Ceramic Matrix Composites”, Ceram. Eng. Sci. Proc. 1981, vol. 2 No. 7-8 pp. 661-701.
Schuldies et al., “Ceramic Composites: Emerging Processes, Applications”, Ceramic Industry May 1992 pp. 43-46.
Seals, “TMT Focuses on Advanced Materials for Composites”, Ceramic Industry, Dec. 1991 pp. 32-34.
Shetty, “Ceramic Matrix Composites”, Metals and Ceramics Info. Ctr. CAB, Dec. 1982, Issue No. 118, pp. 1-4.
Stevens, “An Introduction to Zirconia, Zirconia and Zirconia Ceramics”, Magnesium Elektron Ltd., Jul. 1996, 51 pages.
Chapter 4 “Ceramics Based on Alumina: Incerasing the Hardness for Tool Applications”, by. A. Krell, found in Handb of Cer. Hard Materials published by Wiley-VCH, pp. 648-682.
Chapter 7 Boride-Based Hard Materials:, by Telle et al., found in Handb of Cer. Hard Materials published by Wiley-VCH pp. 802-895, 933-945.
Grewe et al., “Whisker-Reinforced Ceramics”, Journal CFI-Ceramic Forum International vol. 64, No. 8-9 pp. 303,306-308,313-317.
Xu et al., “Two-State Optimal Approach for the Composition of Alumina Matrix Ceramic Composites . . . and Boron Carbide Particulates”, Jr. Chinese Cer. Soc. vol. 26, No. 1 (1998).
Huang et al., “Contral of Boron Quantity in B4C Dispersed AI2O3 Pellete during Sintering”, Zhongnan Kuangye Xueyuan Xuebao 1994, vol. 25 No. 5 pp. 625-628.
Huang et al., “Sintering Behavior of B4C- Dispersed AI2O3 Pellets”, Jr. of Central-South Institute of Mining and Metallurgy, vol. 20, No. 1 Feb. 1989 pp. 59-65.
Internet Brochure, Electro Abrasives, Service That Cuts It . . . Products That Cut It! Date unknown, 1 page.
Internet Brochure, “Electro Abrasives, Electro Abrasive Products”, Date unknown, 1 page.
Internet Brochure, “Electro Abrasives, Boron Carbide”, Date unknown, 3 pages.
Internet Brochure, “Electro Abrasives, Applications”, Date unknown, 2 pages.
Internet Brochure, “Electro Abrasives, Corporate Profile”, Date unknown, 2 pages.
Internet Brochure, “Dynamic Ceramic, Materilas”, Date unknown, 2 pages.
Internet Article, “Properties, Applications and Product Information of Bo
Wu Shanghua
Yeckley Russell L.
Group Karl E
Kennametal Inc.
Prizzi John J.
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