Adhesion of Metals to Mixed Oxide Coatings (Al & Cr, Mo, OR W) Prepared by Spray Pyrolysis of Organometallics.


Spray pyrolysis of the mixed metal organometallics, Al[M(CO)3C5H5]3 (M is Cr, Mo or W), prepared in tetrahydrofuran from the mercury analogues and aluminum metal, gave mixed oxide gels on heated alumina substrates. Air was used as the propellant for M = Cr, whereas oxygen was used for M = Mo or W. Mixtures of Al[Cr(CO)3C5 H5]3 and Al(O-i-C3H8)3 having a Cr/Al ratio of 0.02 to 0.93 were used to prepare gels with intermediate dopant concentrations. When calcined at 500 °C, the gels produced amorphous coatings of two-component oxides that were characterized by SEM and EDS methods. The strength of adhesion of a E-beam evaporated chromium metal overlayer to the coating, as measured by a continuous microindentation method, increased in the order Cr < Mo ≅ W; adhesion was found to be directly proportional to the effective free energy of formation of the oxide mixture.

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  1. 1.

    (a) L. G. Bhatgadde and S. Mahapatra, Metal Finishing, January, 55–57 (1987); (b) P. H. Holloway, Gold Bulletin 12 (3), 99–106 (1979).

    Article  Google Scholar 

  2. 2.

    (a) M. P. Borom and J. A. Pask, J. Am. Ceram. Soc. 49, 1 (1966); (b) M. Caulton, W. L. Sked, and F. S. Wozniak, RCA Review 40, 115 (1979); (c) R. W. Pierce and J. G. Vaughan, IEEE Trans, on Comp., Hybrids and Manuf. Tech. 6, 202 (1983); (d) K. L. Chopra. Thin Film Phenomena, chapter: “Mechanical effects in thin films.”(McGraw-Hill Book Co., New York 1969).

    CAS  Article  Google Scholar 

  3. 3.

    (a) D. G. Moore, J. W. Pitts, J. C. Richmond and W. N. Harrison, J. Am. Ceram. Soc. 37, 1 (1954); (b) A. Dietzel, Sprechsaal 68, 3, (1935).

    CAS  Article  Google Scholar 

  4. 4.

    (a) H. Kanai, MS thesis, Cornell University, 1987; (b) G. J. DeMott, H. Kanai and D. L. Kohlstedt, submitted for publication.

  5. 5.

    (a) D. Stone, W. R. LaFontaine, P. Alexopoulos, T. -W. Wu and C. -Y. Li, J. Materials Res. 3, 141 (1988); (b) G. J. DeMott, W. R. LaFontaine, D. L. Kohlstedt, and C. -Y. Li, submitted for publication.

  6. 6.

    R. B. Petersen, J. J. Stezowski, C. Wan, J. M. Burlitch and R. E. Hughes, J. Am. Chem. Soc. 93, 3532 (1971).

    Article  Google Scholar 

  7. 7.

    G. J. DeMott, PhD thesis, Cornell University, 1989.

  8. 8.

    R. B. Petersen, PhD thesis, Cornell University, 1973.

  9. 9

    J. M. Burlitch, How to Use Ace No-Air Glassware (Ace Glass Co. Vineland, N.J., Bulletin No. 3841).

  10. 10.

    P. J. Burnett and T. F. Page, J. Materials Sci. 19, 845 (1984).

    CAS  Article  Google Scholar 

  11. 11.

    B. R. Lawn, B. J. Hockey and S. M. Wiederhorn, J. Materials Res. 15, 1207 (1980).

    CAS  Google Scholar 

  12. 12.

    R. B. King, in Organometallic Syntheses. Vol. 1, edited by J. J. Eisch and R. B. King (Academic Press, New York, 1965), p. 111.

  13. 13.

    S. V. Pepper, J. Appl. Physics 47, 801 (1976).

    CAS  Article  Google Scholar 

  14. 14.

    O. Kubaschewski and C. B. Alcock, Metallurgical Thermochemistry, (Pergamon Press, Oxford, 1983).

    Google Scholar 

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Burlitch, J.M., Demott, G.J. & Kohlstedt, D.L. Adhesion of Metals to Mixed Oxide Coatings (Al & Cr, Mo, OR W) Prepared by Spray Pyrolysis of Organometallics.. MRS Online Proceedings Library 131, 453 (1988).

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