Effect of substrate on crystallization of sol-gel coating

M. Chui-Sabourin, Steve Garofalini

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Sol-gel derived alumina was used to coat 316 stainless steel substrates. The coating showed crystallization starting at 1000°C. The crystalline particles were α-Al. After analyzing the interaction of some possible substrate elements with alumina sol, iron was determined to be the most important element in the crystallization of α-Al2O3. Our experiment shows, however, that coating crystallization originates from the substrate-coating interface. Substrate surface crystallography seems to play a more important role than additives in α phase nucleation. When oxide powders were used as additives, iron, manganese and chromium increased crystallization. Since the substrate surface includes iron, manganese and chromium, crystallization behavior may be a result of a combination of topography and some chemical effects.

Original languageEnglish
Pages (from-to)177-190
Number of pages14
JournalThin Solid Films
Volume198
Issue number1-2
DOIs
Publication statusPublished - Mar 20 1991

Fingerprint

Crystallization
Sol-gels
gels
crystallization
coatings
Coatings
Substrates
Iron
Aluminum Oxide
Chromium
Manganese
iron
manganese
chromium
Alumina
aluminum oxides
chemical effects
Crystallography
Stainless Steel
Polymethyl Methacrylate

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Effect of substrate on crystallization of sol-gel coating. / Chui-Sabourin, M.; Garofalini, Steve.

In: Thin Solid Films, Vol. 198, No. 1-2, 20.03.1991, p. 177-190.

Research output: Contribution to journalArticle

Chui-Sabourin, M. ; Garofalini, Steve. / Effect of substrate on crystallization of sol-gel coating. In: Thin Solid Films. 1991 ; Vol. 198, No. 1-2. pp. 177-190.
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