Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Thermal Diffusivity of Partially and Fully Stabilized Zirconia

부분 및 완전 안정화 지르코니아의 열확산 계수

  • ;
  • D. P, H hasselman ;
  • L, D. Bentsen ;
  • R, Syed
  • 이홍림 (연세대학교 공과대학 요업공학과) ;
  • ;
  • ;
  • Published : 1985.04.01
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Abstract

Thermal diffusivities of zirconia samples partially or fully stabilized by MgO and $Y_2O_3$ were measured b laser-flash method up to 140$0^{\circ}C$ The values of thermal diffusivity decreased as the contents of MgO and $Y_2O_3$ increased due to the phonon scattering effect of defect structure of cubic phase formed. The temperature dependence of thermal diffusivity showed that the thermal diffusivity values decreased due to phono-phonon scattering as the temperature increased. The difference in thermal diffusivity was observed on cooling after heating up to 140$0^{\circ}C$ for magnesia stabi-lized zirconia samples but not for yttria stabilized zirconia samples.

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References

  1. Nature v.258 no.703-704 Ceramic Steel R.C. Garvle;R.H. Hannink;R.T. Pascoe
  2. Advances in Ceramics v.3 A.G. Heuer;L.W. Hobbs
  3. Advances in Ceramics v.3 Phase Equilibria in some Zirconia Systems V.S. Stubican;J.R. Gellmann
  4. Ceramics in Severe Environments Materials Sciene Research v.5 R.E. Jaeger;R.E. Nickell
  5. J. Am. Ceram. Soc v.58 no.5-6 Preciptation in Partially Stabilized Zirconia G.K. Bansal;A.H. Heuer
  6. Elements of X-Ray Diffraction(2nd Edition) B.D. Culisty
  7. Handbook of Lattice Spacings and Structures of Metals and Alloys v.2 W.B. Pearson
  8. J. Appl. Phys v.32 no.9 Flash Mothod of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity W.J. Parker;R.J. Jenkins;C.P. Butler;G.L. Abbott
  9. Trans. Brit. Ceram. Soc v.82 no.1 The Measurement of the Thermal Conductivity of Refractories by the Laser-Flash Method M.A. Bucknam;L.D. Bentsen;Janes Makosey;G.R. Angell
  10. Private Communication M.V. Swain
  11. Introduction to Solid State Physics(5th Edition) C. Kittel