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ß-Al2O3 synthesis from m-Al2O3

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Abstract

β-Al2O3 formation fromm-Al2O3 was found by a new convenient technique. By thermal decomposition of a complex compound, trioxalatoaluminate Na x (NH4)3−x [Al(C2O4)3]yH2O(0.091 ⩽x ⩽ 0.333;y= 3), a very fine powder ofm-Al2O3 was formed. The decomposition process was examined by thermal analysis and X-ray diffraction and the phase relation of the system Na2O-Al2O3 in the midtemperature region between 600 and 1200° C is discussed briefly. The tablet ofm-Al2O3 was fired at 1600° C for 30 min to prepare denseβ-Al2O3 ceramics, the apparent density of which was greater than 95% of the theoretical value. The sintered tablet was examined from the structural point of view and the electrical conductivity was measured by an a.c. method to verify that the procedure of the complex decomposition is a suitable technique forβ-Al2O3 synthesis.

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References

  1. J. T. Kummer, ‘Progress in Solid State Chemistry’ (Edited by H. Reiss and J. O. McCaldin) Vol. 7, Pergamon, Oxford (1972) p. 141.

    Google Scholar 

  2. A. J. Perrotta and J. E. Young, Jr.,J. Amer. Ceram. Soc. 57 (1974) 405.

    Google Scholar 

  3. A. G. Elliot and R. A. Huggins,ibid 58 (1975) 497.

    Google Scholar 

  4. T. Takahashi and K. Kuwabara,J. Solid State Chem., to be published.

  5. J. Paris and R. Paris,Bull. Soc. Chim. France 4 (1965) 1138.

    Google Scholar 

  6. L. N. Glyzina, V. I. Fadeeva and Yu. D. Tret'yakob,Izv. Akad. Nauk SSSR. Neorg. Mater. 11 (1975) 1088.

    Google Scholar 

  7. J. C. Bailar, Jr. and E. M. Jones, ‘Inorganic Syntheses’ (Edited by H. S. Booth) Vol. I, McGraw-Hill, New York (1939) p. 35.

    Google Scholar 

  8. J. Fally, C. Lasne, Y. Lazennec, Y. LeCars and P. Margotin,J. Electrochem. Soc. 120 (1973) 1296.

    Google Scholar 

  9. J. Thery and D. Briancon,Rev. Hautes Temp. Refract. 1 (1964) 221.

    Google Scholar 

  10. D. J. Dyson and W. Johnson,Trans. J. Brit. Ceram. Soc. 72 (1973) 49.

    Google Scholar 

  11. T. L. Francis, F. E. Phelps and G. MacZura,Ceram. Bull. 50 (1971) 615.

    Google Scholar 

  12. T. J. Whalen, G. J. Tennenhouse and C. Meyer,J. Amer. Ceram. Soc. 57 (1974) 497.

    Google Scholar 

  13. G. E. Youngblood, A. V. Virkar, W. G. Cannon and R. S. Gordon,Ceram Bull. 56 (1977) 206.

    Google Scholar 

  14. T. Takahashi, K. Kuwabara and H. Iwahara, Extended Abstract of27th JCS Fall Meeting, Nagoya, Vol. I (1972) p. 624.

    Google Scholar 

  15. I. Uei, K. Hayashi and T. Nishida,Annual Report of The Asahi Glass Foundation for the Contribution to Industrial Technology 15 (1971) 69.

    Google Scholar 

  16. A. Imai and M. Harata,Japan J. Appl. Phys. 11 (1972) 180.

    Google Scholar 

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464, Nagoya, Japan

    T. Takahashi & K. Kuwabara

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  1. T. Takahashi
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  2. K. Kuwabara
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Takahashi, T., Kuwabara, K. ß-Al2O3 synthesis from m-Al2O3 . J Appl Electrochem 10, 291–297 (1980). https://doi.org/10.1007/BF00617203

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  • DOI: https://doi.org/10.1007/BF00617203

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