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Morphological and phase composition changes during sintering of ultralight Al2O3TiO2 foams

Published online by Cambridge University Press:  31 January 2011

M. Mann ,
G. E. Shter  and
G. S. Grader
M. Mann
Affiliation:
Chemical Engineering Dept., Technion, Haifa 32000, Israel
G. E. Shter
Affiliation:
Chemical Engineering Dept., Technion, Haifa 32000, Israel
G. S. Grader
Affiliation:
Chemical Engineering Dept., Technion, Haifa 32000, Israel
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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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Type
Articles
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Journal of Materials Research , Volume 17 , Issue 4 , April 2002 , pp. 831 - 837
Copyright
Copyright © Materials Research Society 2002

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References

1Bhaduri, S.B., Adv. Perf. Mater. 1, 205 (1994).CrossRefGoogle Scholar
2Gibson, L.J. and Ashby, M.F., Cellular Solids, 2nd ed. (Cambridge University Press, Cambridge, United Kingdom, 1997).CrossRefGoogle Scholar
3Sepulveda, P., Am. Ceram. Soc. Bul. 76(10) 61 (1997).Google Scholar
4Kingery, W.D., Introduction to Ceramics, (John Wiley & Sons, New York, 1967).Google Scholar
5Clark, R.J.H., The Chemistry Of Titanium And Vanadium (University College, London, United Kingdom, 1968)Google Scholar
6Grader, G. S., Shter, G. E., and Hazan, Y. de, Israeli Patent Application No. 123969 (1998).Google Scholar
7Grader, G.S., Shter, G.E., and Hazan, Y. de, J. Mater. Res. 14, 1485 (1999).CrossRefGoogle Scholar
8Lang, S.M., Fillmore, C.L., and Maxwell, L.H., J. Res. Nat. Bur. Stand. 48, 298 (1952).CrossRefGoogle Scholar
9Licoccia, S., Vona, M.L. Di, Traversa, E., Innocenzi, P., and Martucci, A., J. Sol-Gel Sci. Technol. 19, 577 (2000).CrossRefGoogle Scholar
10Crisan, M., Zaharescu, M., Jitianu, A., Crisan, D. and Preda, M., J. Sol-Gel Sci. Technol. 19, 409 (2000).CrossRefGoogle Scholar
11Andrianainarivelo, M., Corriu, R.J.P., Leclercq, D., Mutin, P.H. and Vioux, A., J. Sol-Gel Sci. Technol. 8, 89 (1997).Google Scholar