DOI QR코드

DOI QR Code

Effect of Additives on Mechanical Properties of Alumina Bushing Fabricated by Gel-Casting

  • 발행 : 2009.11.30

초록

Alumina bushing used for manufacturing glass fiber was fabricated by gel-casting which can fabricate complex forms. When solid loading is increased, density was increased and shrinkage and absorption were decreased. The sample loading with 57 vol% solid was optimum for alumina suspension, which showed the best physical properties. The cast sample was sintered at $1550{^{\circ}C}$ for two hours with sintering additive, $Y_2O_3$. The result showed that the alumina bushing with $Y_2O_3$ sintering additive has a density of 98%, shrinkage of 11% and bending strength of 196 kg/$cm^2$.

키워드

참고문헌

  1. A. C. Young, O. O. Omatet, M. A. Janney, and P. A, Menchhofer, “Gelcasting of Alumina,” J. Am. Ceram. Soc., 74 [3] 162-68 (1991)
  2. C. J. Oh and H. L. Lee, “Microstructure and Drying of the Alumina Green Body by the Cel-Casting Method,” J. Kor. Ceram. Soc., 31 [12] 1467-74 (1994)
  3. C. G. Ha, J. W. Kim, C. Y. Jo, U. G. Paik, and Y. G. Jung, “Effects of Particle Size on Processing Variables and Green Microstructure in Gelcast Alumina Green Bodies,” J. Kor. Mater. Res., 11 [10] 869-78 (2001)
  4. Y. G. Choi, “Fabrication of Complex-shaped Mullite Ceramics by Gelcasting,” J. Kor. Ceram. Soc., 36 [7] 773-81 (1999)
  5. M. Kokabi, A. A. Babalo, and A. Barati, “Gelation Process in Low Toxic Gelcasting Systems,” J. Eur. Ceram. Soc., 26 3083-90 (2006) https://doi.org/10.1016/j.jeurceramsoc.2005.08.020
  6. L. G. Ma, J. L. Yang, L. Zhao, and Y. Huang, “Gelcasting of a Rutile Mixture Applied to Extrusion Forming,” J. Eur. Ceram. Soc., 22 2291-96 (2002) https://doi.org/10.1016/S0955-2219(02)00005-5
  7. L. G. Ma, Y. Huang, J. L. Yang, H. R. Le, and Y. Sun, “Control of the Inner Stresses in Ceramic Green Bodies Formed by Gelcasting,” Ceram. Int., 32 93-8 (2006) https://doi.org/10.1016/j.ceramint.2004.12.011
  8. Y. J. Cho, I. S. Park, J. H. Moon, and D. J. Kim, “Dispersion and Rheological Characteristics of Alumina Slurries in Aqueous Tapecasting Using Acrylate Binder,” J. Kor. Ceram. Soc., 39 [2] 164-70 (2002) https://doi.org/10.4191/KCERS.2002.39.2.164
  9. C. Takai, M. Tsukamoto, M. Fuji, and M. Takahashi, “Control of High Solid Content Yttria Slurry with Low Viscosity for Gelcasting,” J. Alloys and Compounds, 408 533-37 (2006) https://doi.org/10.1016/j.jallcom.2004.12.191
  10. J. Tong and D. Chen, “Preparation of Alumina by Aqueous Gelcasting,” Ceram. Int., 30 2061-66 (2004) https://doi.org/10.1016/j.ceramint.2003.07.009
  11. K. Prabhakaran and C. Pavithran, “Gelcasting of Alumina Using Urea-formaldehyde II. Gelation and Ceramic Forming,” Ceram. Int., 26 67-71 (2000) https://doi.org/10.1016/S0272-8842(99)00020-6
  12. Y. Chen, Z. Xie, J. Yang, and Y. Huang, “Alumina Casting Based on Gelation of Gelatine,” J. Eur. Ceram. Soc., 19 271-75 (1999) https://doi.org/10.1016/S0955-2219(98)00201-5
  13. A. A. Babaluo, M. Kokabi, and A. Barati, “Chemorheology Alumina-aqueous Acrylamide Gelcasting Systems,” J. Eur. Ceram. Soc., 24 635-44 (2004) https://doi.org/10.1016/S0955-2219(03)00322-4
  14. K. Prabhakaran and C. Pavithran, “Gelcasting of Alumina from Acidic Aqueous Medium Using Acrylic Acid,” J. Eur. Ceram. Soc., 20 1115-19 (2000) https://doi.org/10.1016/S0955-2219(99)00244-7
  15. O. O. Omatete, M. A. Janney, and S. D. Nunn, “Gelcasting: From Laboratory Development Toward Industrial Production,” J. Eur. Ceram. Soc., 17 407-13 (1997) https://doi.org/10.1016/S0955-2219(96)00147-1
  16. M. Bengisu and E. Yilmaz, “Gelcasting of Alumina and Zirconia Using Chitosan Gels,” Cerm. Int., 28 431-38 (2002) https://doi.org/10.1016/S0272-8842(01)00115-8
  17. A. Barait, M. Kokabi, and M. H. N. Famili, “Drying of Gelcast Ceramic Parts Via the Liquid Desiccant Method,” J. Eur. Ceram. Soc., 23 2265-72 (2003) https://doi.org/10.1016/S0955-2219(03)00045-1
  18. B. S. Draskovich and J. P. Pollinger, “A physical Model for the Drying of Gelcast Ceramics,” J. Am. Ceram. Soc., 82 [3] 513-20 (1999) https://doi.org/10.1111/j.1151-2916.1999.tb01795.x
  19. C. G. Ha, Y. G. Jung, J. W. Kim, C. Y. Jo, and U. G Paik, “Effect of Particle Size on Gelcasting Process and Green Properties in Alumina,” Mater. Sci. Eng., A337 212-21 (2002) https://doi.org/10.1016/S0921-5093(02)00034-5
  20. Y. Jia, Y. Kanno, and Z. P. Xie, “Fabrication of Alumina Green Body Through Gelcasting Process Using Alginate,” Mater. Lett., 57 2530-34 (2003) https://doi.org/10.1016/S0167-577X(02)01306-X