Nanocomposite route to the stabilization of porous ϑ-alumina

Ladislav Pach, Sridhar Komarneni, Chunling Liu

Research output: Contribution to journalArticle

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Abstract

Stabilization of θ{symbol}-alumina phase by silica was studied in nanocomposite (diphasic) alumina-silica gels by XRD and BET surface areas measurements. Five wt.% of silica (22 nm particles) increased the crystallization temperature of θ{symbol} to α-alumina by about 100°C from boehmite (10 nm particles) derived alumina. Stabilization of θ{symbol}-alumina was caused by the formation of intimate contact (Al-O-Si) between components by diffusion of silica into the defect alumina structure.

Original languageEnglish (US)
Pages (from-to)131-134
Number of pages4
JournalJournal of Porous Materials
Volume2
Issue number2
DOIs
Publication statusPublished - Jun 1995

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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