Sol-gel coated enamel for steel: 250 days of continuous high-temperature stability

Gundars Mezinskis, Ilona Pavlovska, Kaspars Malnieks, Laimons Bidermanis, Andris Cimmers, Pavels Onufrijevs

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Two types of thermally durable and heat-resistant enamel coatings were applied to steel alloys. Three-layer TiO2-SiO2 sol-gel films were grown by a dip-coating method on an enamelled metal alloy to maintain and protect their properties from undesired environmental impact. The enamel coatings withstood 6000 h at 600 °C, retaining their colour while staying hard and adhering firmly to the metal surface. A three-layer sol-gel coating improved the chemical resistance of the enamelled metal by 6% (0 h), 29% (3000 h), and 28% (6000 h) at 600 °C. Throughout the whole treatment at 600 °C, the enamel coatings maintained their microhardness and even increased it from 3.6 to 4.4 GPa.

Original languageEnglish
Pages (from-to)2974-2980
Number of pages7
JournalCeramics International
Issue number3
Publication statusPublished - 15 Feb 2017
Externally publishedYes


  • B. Thermal properties
  • C. Chemical properties
  • E. Thermal applications
  • Enamel for steel A. Sol-gel processes

Field of Science*

  • 1.4 Chemical sciences
  • 2.5 Materials engineering

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database


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