MSA  Vol.2 No.1 , January 2011
Crystallinity, Microstructure and Mechanical Strength of Yttria-Stabilized Tetragonal Zirconia Ceramics for Optical Ferrule
Abstract: Yttria-stabilized zirconia ceramics were prepared by using different raw materials in order to compare commercially available optical ferrule. Injection-molded cylindrical green compacts were sintered in air at 1350°C, 1400°C and 1450°C for 2 hrs, followed by furnace cooling. Crystallinity, microstructure and mechanical strength of the sintered body were evaluated by using an X-ray diffraction analyses, a field emission-scanning electron microscope, a universal tester, and a micro-hardness tester, respectively. For practical usage, the sample B sintered at 1350°C was favorable because of high tetragonality and good mechanical strength.
Cite this paper: nullS. Kim and K. Hwang, "Crystallinity, Microstructure and Mechanical Strength of Yttria-Stabilized Tetragonal Zirconia Ceramics for Optical Ferrule," Materials Sciences and Applications, Vol. 2 No. 1, 2011, pp. 1-5. doi: 10.4236/msa.2011.21001.

[1]   J. M. Wu and C. H. Wu, “Sintering Behaviour of Highly Agglomerated Ultrafine Zirconia Powders,” Journal of Materials Science, Vol. 23, No. 9, September 1998, pp. 3290-3299. doi:10.1007/BF00551308

[2]   T. Kubo, K. Ichikawa, N. Machida, H. Sakai and T. Shigematsu, “Effect of Calcining Temperature on the Tetragonal-to-Monoclinic Phase Transition Characteristics in 2 mol% Yittria-Doped Zirconia Ceramics,” Journal Materials Science, Vol. 35, No. 12, June 2000, pp. 3053-3057. doi:10.1023/A:1004803532387

[3]   Y. Zhang, A. Pajares and B. R. Lawn, “Fatigue and Damage Tolerance of Y-TZP Ceramics in Layered Biomechanical Systems,” Journal of Biomedical Materials Research B: Applled Biomaterials, Vol. 71B, October 2004, pp. 166-171.

[4]   D. R. R. Lazar, M. C. Bottino, M. Ozcanc, L. F. Valandro, R. Amaral, V. Ussui and A. H. A. Bressiani, “Y-TZP Ceramic Processing from Coprecipitated Powders: A Comparative Study with Three Commercial Dental Ceramics,” Dental Materials, Vol. 24, No. 12, April 2008, pp. 1676-1685. doi:10.1016/

[5]   S. J. Ha, B. C. Shin, M. W. Choi, K. J. Lee and W. S. Cho, “High Speed End-Milling Characteristics of Pre-Sintered Al2O3/Y-TZP Ceramic Composites for Dental Applications,” Journal of the Ceramic Society of Japan, Vol. 118, No. 1383, November 2010, pp. 1053-1056. doi:10.2109/jcersj2.118.1053

[6]   Y. Kitano, Y. Mori, and A. Ishitani, “Structural Changes by Mechanical and Thermal Stresses of 2.5-mol% -Y2O3-Stabilized Tetragonal ZrO2 Polycrystals,” Journal of American Ceramic Society, Vol. 71, No. 8, August 1988, pp. C-382-C-383. doi:10.1111/j.1151-2916.1988.tb06399.x

[7]   S. H. Yang, S. B. Kim, B. A. Kang, Y. H. Yun, Y. H. Kim and K. S. Hwang, “Preparation of Yttria-Stabilized Tetragonal Zirconia Ceramics for Optical Ferrule,” Journal of Materials Synthesis & Processing, Vol. 9, No. 5, September 2001, pp. 275-279. doi:10.1023/A:1015203602403