Acta Metall Sin  1992, Vol. 28 Issue (7): 90-94    DOI:

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MICROSTRUCTURE AND MECHANICAL PROPERTIES OF IN-SITU FORMATION FIBROUS POLYTYPE AIN COMPOSITE MATERIAL

LI Zonghuai; CHEN Shengqi; ZHOU Yanchun; XIA Fei (Institute of Metal Research; Academia Sinica; Shenyang)

LI Zonghuai; CHEN Shengqi; ZHOU Yanchun; XIA Fei (Institute of Metal Research; Academia Sinica; Shenyang). MICROSTRUCTURE AND MECHANICAL PROPERTIES OF IN-SITU FORMATION FIBROUS POLYTYPE AIN COMPOSITE MATERIAL. Acta Metall Sin, 1992, 28(7): 90-94.

Abstract References Related Articles Recommended Metrics Download:  PDF(1975KB)  Export:  BibTeX | EndNote (RIS)       Abstract  In-situ formation fibrous polytype AIN composite ceramic material was prepared from AlN-Y_2O_3-SiO_2 system. In comparison with AlN ceramics, both bending strength and fracture toughness of the composite material are much bettered. Microstructural observation revealed that a lot of epitaxial growth fibrous AlN polytype occurred in matrix. Y_2O_3 seems to act as a densifier for in-situ formation material and as medium for growth of fibrous polytype. SiO_2 is the growth promoter for fibrous polytype. The occurrence of fibrous polytype may increase the strength and toughness of AlN ceramic composite material. Key words:  AIN ceramics      in-situ formation      fibrous polytype      Received:  18 July 1992      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1992/V28/I7/90 1 Shalek P D, Petrovic J J, Hurley G F, Gac F D. Am Ceram Soc Bull, 1986; 65: 351 2 Rafaniello W, Cho K, Virkar A V. J Mater Sci, 1981; 16: 3479 3 Tronleli M, Kolar D. In: Popper P ed., Special ceramics 6, Proc 6th Symposium on Special Ceramics, Stoke-on-Trent, July 9-11, 1974, Manchester, 1975; 6: 39 4 Evans A G, Char E A. J Am Ceram Soc, 1976; 59: 371 5 Hever A H, Fryburg G A, Ogbuji L U, Mitchell T E, Shinozaki S. J Am Ceram Soc, 1978; 61: 409 6 Jack K H, In: Riley F L ed., Nitrogen Ceramics, Noordhooff, Leyden, 1977: 109 7 Chase A B, Osmer J A. J Cryst Growth, 1972; 15: 249 [1] PEI Yutao(National Center of Laser Technology; Beijing Polytechnic University; Beijing 100022)Correspondent: PEI Yutao; associate professor Tel: (010)67391875; Fax: (010)67392297. LASER CLAD TiC_p/Ni ALLOY FUNCTIONALLY GRADIENT COATING AND ITS IN-SITU FORMATION MECHANISM[J]. 金属学报, 1998, 34(9): 987-991. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed