Solar energy absorbing materials that are capable of withstanding long-term exposure at 600 °c: Research strategy

Ilona Pavlovska, Gundars Mežinskis, Laimons Paulis Bīdermanis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Pipes for parabolic-trough solar energy collectors (PTSC) must be able to operate and withstand high temperatures in corrosive environments for a long time without changing its microstructure and losing its original properties. The stages of development of a new material and technology for solar energy collectors that allows the production of a PTSC solar energy-absorbing material that is capable of withstanding temperatures ≥ 600 °C for at least 250 days are described. This material is a glass-crystalline enamel coating that is adhered to tubular stainless steel pipes. Such enamel coatings have high coefficients of thermal expansion (CTE) that are similar to the metal surface. These matching CTEs allow the enamel coatings to resist flaking during the heating at 900 °C. The high-temperature resistance of the developed coating was ensured not only by specific additives added to the frit of the coating but also by an additional nanosized sol-gel coating over the enamelled metal substrate.

Original languageEnglish
Title of host publicationBaltSilica 2018
EditorsGundars Mezinskis, Ruta Svinka, Ilona Pavlovska, Liga Grase, Janis Grabis, Kestutis Baltakys, Irina Hussainova
PublisherTrans Tech Publications Ltd
Number of pages9
ISBN (Print)9783035714401
Publication statusPublished - 2018
Externally publishedYes
Event8th International Conference on Silicate Materials - Riga, Latvia
Duration: 30 May 20181 Jun 2018
Conference number: 8

Publication series

NameKey Engineering Materials
Volume788 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Conference8th International Conference on Silicate Materials
Abbreviated titleICSM 2018


  • Anti-reflective coatings
  • Enamel coatings for steel
  • Sol-gel coatings
  • Thermal properties

Field of Science*

  • 2.3 Mechanical engineering
  • 2.6 Medical engineering

Publication Type*

  • 3.1. Articles or chapters in proceedings/scientific books indexed in Web of Science and/or Scopus database


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