Morphological and phase composition changes during sintering of ultralight Al2O3TiO2 foams

Journal of Materials Research volume 17, pages831–837(2002)Cite this article

Abstract

The morphological and phase composition changes during sintering of ultralight pure Al2O3 and Al2O3/TiO2 foams were investigated in the temperature range of 900–1600 °C in air. The titania (10 wt%) was incorporated during a nonhydrolytic foaming procedure to facilitate its uniform dispersion in the alumina matrix. The changes of linear shrinkage and related changes in effective density and porosity demonstrate a higher reactivity in the Al2O3/TiO2 foam. The formation of tialite phase in the Al2O3/TiO2 foams occurred below 1300 °C and remained stable during cooling under 1200 °C without stabilizers.

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Affiliations

  1. Chemical Engineering Dept., 32000, Technion, Haifa, Israel

    M. Mann, G. E. Shter & G. S. Grader

Authors
  1. M. Mann
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  2. G. E. Shter
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  3. G. S. Grader
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Correspondence to M. Mann.

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Mann, M., Shter, G.E. & Grader, G.S. Morphological and phase composition changes during sintering of ultralight Al2O3TiO2 foams. Journal of Materials Research 17, 831–837 (2002). https://doi.org/10.1557/JMR.2002.0121

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