Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Model for Degradation of $\beta$-$Al_2O_3$ Solid Electrolyte

$\beta$-$Al_2O_3$ 고체전해질의 퇴화모델

  • 송효일 (연세대학교 공과대학 요업공학과) ;
  • 김응수 (연세대학교 공과대학 요업공학과) ;
  • 윤기현 (연세대학교 공과대학 요업공학과)
  • Published : 1985.05.01
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Abstract

A model for degradation of $eta$-$Al_2O_3$ is derived from sress generated by Poiseuille pressure capillary effect and effulent flux in charging process of Na-S Battery. Critical current density for degradation increase with increasing the crack length and crack tip radius. radius 10-7cm and crack length 10-5cm Dependence of crack growth velocity on crack lengh is seperated two regions that is for a large crack length it is predominated by Poiseuille pressure and effulent fluex but in the case of small crack length it is controlled by capillary effect.

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References

  1. J. Inorg. Nucl. Chem. v.29 no.2453 Ion Exchange Properties and Rates of Ionic Diffusion in β-alumina Y.F. Yao;J.t. Kummer
  2. Soc. Automot. Eng. Trans. v.67 no.1003 A Sodium-Sulfur Secondary Battery J.T. Kummer;N. Weber
  3. Mat. Sci. Monog. v.6 no.964 Solution Spray-drided and Frozen-drided Sodium Beta-alumina Powder Preparation and Hot Pressing D.J. Green;S. Hutchins
  4. Nat. Bur. Stand(U.S.) Monogr. v.59 no.113 Mechanical Behaviour of Crystalline Solid T.L. Johnston
  5. Electrochimica Acta. v.19 no.187 The Breakdown of β-Al₂O₃Ceramics Electrolyte R.D. Armstrong;T. Dickinson;J. Turner
  6. Bull. Amer. Ceram. Soc. v.54 no.523 Deterioration in Ceramic Electrolytes for Na-S Battery G.J. Tennenhouse;R.C. Ku;R.H. Richman;T.J. Whalen
  7. J. Am. Ceram. Soc. v.58 no.63 A Model for Degradation of Ceramic Electrolyte in Na-S Batterics R.H. Richman;G.J. Tennenhouse
  8. Fracture Mechanics of Ceramics D.K. Shetty;A.V. Virkar;R.S. Gordon;R.C. Bradt(ed.);D.R.H. Hasselman(ed.);F.F. Lange(ed.)
  9. Int. J. Eng. Sci. v.9 no.25 I.N. Sneddon;S.C. Das
  10. J. Mat. Sci. v.17 no.517 Initiation of Mode I Degradation in Sodium Beta Alumina Electrolytes L.C. DeJonghe;L.A. Feldman
  11. J. Mat. Sci. v.17 no.885 Chemical Colouration of Sodium-beta Alumina L.C. DeJonghe;A. Buchele
  12. J. Mat. Sci. v.15 no.302 On the Deterioration of β〃-Al₂O₃Ceramics under Electrolytic Condition A.V. Virkar;L. Viswanathan;D.R. Biswas
  13. J. Mat. Sci. v.18 no.1590 The Deterioration of Sodium Ion Conductors under Applied Stress P.S. Nicholson;K. Kuribayashi
  14. Theory of Elasticity(3rd ed.) S.P. Timoshenko;J.M. Goddier
  15. Handbuch der Physik R. Berker
  16. Crack Problems in the Classical Theory of Elasticity I.N. Sneddon;M. Lowengrub
  17. Trans. Metal. Soc. of AIME. v.236 no.1478 Propagation of a Crack Filled with Liquid Metal Robertson
  18. J. Mat. Sci. v.16 no.1142 On Some Aspects of Breakdown of β〃-Al₂O₃Solid Elecrolytes A.V. Virkar