Preparation of alumina films from a new sol-gel route

Qiang Fu; Chuan Bao Cao; He Sun Zhu

doi:10.1016/S0040-6090(99)00023-1

Preparation of alumina films from a new sol-gel route

Qiang Fu, Chuan Bao Cao, He Sun Zhu

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

76 Citations (Scopus)

Abstract

A new sol-gel route was applied to prepare alumina films by using AlCl₃·6H₂O as starting material and acetylacetone (AcAc) as additive. Our research results show that AcAc and aluminum form a complex compound in the sol, which makes the sol very stable. Meanwhile, the complex structure prevents the decomposition going on quickly during the sintering process and the obtained films are free of cracks. The as-prepared films were amorphous. When the sintering temperature reached up to 600°C, γ-Al₂O₃ began to form and was transformed to α-Al₂O₃ at temperatures over 1200°C.

Original language	English
Pages (from-to)	99-102
Number of pages	4
Journal	Thin Solid Films
Volume	348
Issue number	1
DOIs	https://doi.org/10.1016/S0040-6090(99)00023-1
Publication status	Published - 6 Jul 1999

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title = "Preparation of alumina films from a new sol-gel route",

abstract = "A new sol-gel route was applied to prepare alumina films by using AlCl3·6H2O as starting material and acetylacetone (AcAc) as additive. Our research results show that AcAc and aluminum form a complex compound in the sol, which makes the sol very stable. Meanwhile, the complex structure prevents the decomposition going on quickly during the sintering process and the obtained films are free of cracks. The as-prepared films were amorphous. When the sintering temperature reached up to 600°C, γ-Al2O3 began to form and was transformed to α-Al2O3 at temperatures over 1200°C.",

author = "Qiang Fu and Cao, {Chuan Bao} and Zhu, {He Sun}",

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N2 - A new sol-gel route was applied to prepare alumina films by using AlCl3·6H2O as starting material and acetylacetone (AcAc) as additive. Our research results show that AcAc and aluminum form a complex compound in the sol, which makes the sol very stable. Meanwhile, the complex structure prevents the decomposition going on quickly during the sintering process and the obtained films are free of cracks. The as-prepared films were amorphous. When the sintering temperature reached up to 600°C, γ-Al2O3 began to form and was transformed to α-Al2O3 at temperatures over 1200°C.

AB - A new sol-gel route was applied to prepare alumina films by using AlCl3·6H2O as starting material and acetylacetone (AcAc) as additive. Our research results show that AcAc and aluminum form a complex compound in the sol, which makes the sol very stable. Meanwhile, the complex structure prevents the decomposition going on quickly during the sintering process and the obtained films are free of cracks. The as-prepared films were amorphous. When the sintering temperature reached up to 600°C, γ-Al2O3 began to form and was transformed to α-Al2O3 at temperatures over 1200°C.

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Preparation of alumina films from a new sol-gel route

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