Synthesis and characterization of cordierite from acetylacetonate/alkoxide precursors

Journal of Materials Research volume 8, pages1697–1702(1993)Cite this article

Abstract

Syntheses of ultrafine glass powders in the MgO–Al2O3–SiO2 ternary oxide system were effected by drying and calcining sols derived from acetylacetonate-tetraethoxysilane ethanol solutions. A mixture of magnesium and aluminum acetylacetonates, dissolved with Si(OC2H5)4 in an ethanol solution in a 2:4:5 Mg: Al: Si mole ratio, was hydrolyzed, spray-dried, and calcined to yield a glass powder of 70 Å primary particle size, which sintered to densities ≥ 2.5 g/cm3 and which formed μ-cordierite as the only crystalline phase below 1000 °C. Incorporation of dopant quantities of boron and phosphorus, via their alkyl esters in the hydrolysis reaction with Si(OC2H5)4 and the acetylacetonates, afforded powders which crystallized in the α-phase directly after sintering to density = 2.66 g/cm3.

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Author notes

  1. Lawrence D. David

    Present address: IBM General Technology Division, Vermont, 1000 River Street, 05452-4299, Essex Junction, USA

  2. Joseph M. Dynys

    Present address: Alcoa Research Center, Pennsylvania, Pittsburgh, USA

Affiliations

  1. IBM General Technology Division, Hopewell Junction, New York, 12533, USA

    Lawrence D. David, Ronald M. Anderson, Joseph M. Dynys, Charles C. Goldsmith & Andrew Szule

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  1. Lawrence D. David
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  2. Ronald M. Anderson
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  3. Joseph M. Dynys
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  4. Charles C. Goldsmith
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  5. Andrew Szule
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David, L.D., Anderson, R.M., Dynys, J.M. et al. Synthesis and characterization of cordierite from acetylacetonate/alkoxide precursors. Journal of Materials Research 8, 1697–1702 (1993). https://doi.org/10.1557/JMR.1993.1697

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