D.~S. Lim et a./Wewr251a2001)l452-1458 673K, the wear rate and the friction coefficient linearly 44]CS. Yust, Tribological behavior of whisker reinforced decrease with increasing whisker content. The friction coef- composite materials, in: S. Jahanmir(Ed. ), Friction and Wear ficients at higher temperatures do not vary with sliding orien- Ceramics, Marcel Dekker, New York, 1994, pp. 199-224 tation Sliding normal to the whisker length direction caused 5]C. Della Corte, Tribological characteristics of silicon carbide whisker reinforced alumina at elevated temperature, in: S. Jahanmir(Ed.) less wear than that parallel to it in all test temperature range Friction and Wear of Ceramics. Marcel Dekker. New York. 1994 pp.225-259 [6] D-S. Lim, D-S Park, B -D. Han, T.-S. Kan, Tribological behavior Acknowledgement of alumina reinforced with unidirectionally oriented Sic whiskers, wear225229(1999) [7 E. Hormbogen, Des d wear of materials with hetero The authors(Korea University) would like to acknowl- es, Wear 111(4)(1986)391 edge the financial support for this study provided by the [8] T Senda, F. Yano, J. Drenan, E. Yasuda, R.C. Bradt, Brittle to ductile Korea Science and Engineering Foundation (KOSEF transition in sliding wear of alumina, Ceram. Eng. Sci. Proc. 20(3) through the Ceramic Processing Research Center(CPRC) (1999)43-450. at Han Yang University 9] K. Miyoshi, D H. Buckley, Surface chemistry and friction behavior of the silicon carbide(000 1)surface at temperatures to 1500C, NASA Technical Paper 1813, Vol 27, 1981, pp. 1-10 [10] C.S. Yust, J.T. Leitnaker, C.E. Devore, Wear of an alumina-silicon References carbide whisker composite, Wear 122(1988)151-164 [11] D-S. Park, S. Danyluk, M. McNallan, Ceram. Trans. 10(1990) IE D. Kra . F. Amateau, G L. Messing, Processin 159-180 tion of laminated Sic whisker reinforced AlO3 [12 T.E. Tomizawa, H. Fischer, Wear 105(1985)29-45 Composite Mater. 25(1991)416-432 [13R.S Gates, S.M. Hsu, E.E. Klaus, Tribol. Trans. 32(1989)357-363 2]L. Shaw, R Abbaschian, Fabrication of Sic whisker rei [14C.S. Yust, L.F. Allard, in: V.J. Tennery(Ed. ) Ceramic Materials and MoSi2 composites by tape casting, J. Am. Ceram. Soc omponents for Engines, American Ceramic Society, Westerville, 3129-3132 OH,1989,1212pp [3]M. Wu, G.L. Messing, Fabrication of oriented SiC whisker reinforced [15] M. Cyfika, E. Hombogen, Anisotropy of Friction and Wear of Fiber mullite matrix composites by tape casting, J. Am. Ceram. Soc. 77 Reinforced Epoxy-Resins, ASM International, Metals Park, OH, (1994) 1988,pp.53-591458 D.-S. Lim et al. / Wear 251 (2001) 1452–1458 673 K, the wear rate and the friction coefficient linearly decrease with increasing whisker content. The friction coef- ficients at higher temperatures do not vary with sliding orien￾tation. Sliding normal to the whisker length direction caused less wear than that parallel to it in all test temperature ranges. Acknowledgements The authors (Korea University) would like to acknowl￾edge the financial support for this study provided by the Korea Science and Engineering Foundation (KOSEF) through the Ceramic Processing Research Center (CPRC) at Han Yang University. References [1] E.D. Kragness, M.F. Amateau, G.L. Messing, Processing and characterization of laminated SiC whisker reinforced Al2O3, J. Composite Mater. 25 (1991) 416–432. [2] L. Shaw, R. Abbaschian, Fabrication of SiC whisker reinforced MoSi2 composites by tape casting, J. Am. Ceram. Soc. 78 (1995) 3129–3132. [3] M. Wu, G.L. Messing, Fabrication of oriented SiC whisker reinforced mullite matrix composites by tape casting, J. Am. Ceram. Soc. 77 (1994) 2586–2592. [4] C.S. Yust, Tribological behavior of whisker reinforced ceramic composite materials, in: S. Jahanmir (Ed.), Friction and Wear of Ceramics, Marcel Dekker, New York, 1994, pp. 199–224. [5] C. DellaCorte, Tribological characteristics of silicon carbide whisker reinforced alumina at elevated temperature, in: S. Jahanmir (Ed.), Friction and Wear of Ceramics, Marcel Dekker, New York, 1994, pp. 225–259. [6] D.-S. Lim, D.-S. Park, B.-D. Han, T.-S. Kan, Tribological behavior of alumina reinforced with unidirectionally oriented SiC whiskers, Wear 225229 (1999) 868–873. [7] E. Hornbogen, Description and wear of materials with heterogeneous and anisotropic microstructures, Wear 111 (4) (1986) 391–402. [8] T. Senda, F. Yano, J. Drenan, E. Yasuda, R.C. Bradt, Brittle to ductile transition in sliding wear of alumina, Ceram. Eng. Sci. Proc. 20 (3) (1999) 43–450. [9] K. Miyoshi, D.H. Buckley, Surface chemistry and friction behavior of the silicon carbide (0 0 0 1) surface at temperatures to 1500◦C, NASA Technical Paper 1813, Vol. 27, 1981, pp. 1–10. [10] C.S. Yust, J.T. Leitnaker, C.E. Devore, Wear of an alumina–silicon carbide whisker composite, Wear 122 (1988) 151–164. [11] D.-S. Park, S. Danyluk, M. McNallan, Ceram. Trans. 10 (1990) 159–180. [12] T.E. Tomizawa, H. Fischer, Wear 105 (1985) 29–45. [13] R.S. Gates, S.M. Hsu, E.E. Klaus, Tribol. Trans. 32 (1989) 357–363. [14] C.S. Yust, L.F. Allard, in: V.J. Tennery (Ed.), Ceramic Materials and Components for Engines, American Ceramic Society, Westerville, OH, 1989, 1212 pp. [15] M. Cyffka, E. Hornbogen, Anisotropy of Friction and Wear of Fiber Reinforced Epoxy-Resins, ASM International, Metals Park, OH, 1988, pp. 53–59