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Effects of La2O3 addition on the thermal stability of γ-Al2O3 gels

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Makale Dosyası (246.8Kb)

Date

01.01.2004

Author

Ersoy, Bahri
Günay, Volkan

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Abstract

The effects of La2O3 additions up to 5 wt.% on the thermal stabilities of sol-gel derived alumina gels were studied. Observations were made on pore size, total pore area, phase changes at various sintering temperatures and times. XRD, Hg-porosimeter, DTA– TG techniques were employed. The addition of La2O3 to the sol-gel derived alumina gels raised the g-Al2O3 to a-Al2O3 transformation temperature to 1200 C. This significantly improves the thermal stabilities of alumina gels, that are employed in ceramic membranes.

Source

Ceramics International

Volume

30

URI

https://www.doi.org/10.1016/S0272-8842(03)00084-1
https://hdl.handle.net/11630/7696

Collections

  • Makaleler [36]
  • Scopus İndeksli Yayınlar Koleksiyonu [133]



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