Publication detail

SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF AN ADVANCED BaO-MgO-Al2O3-SiO2 SYSTEM AS AN ATTRACTIVE PROTECTIVE-COATING MATERIAL

RAVASZOVÁ, S. DVOŘÁK, K. SKALKA, P. CASAS LUNA, M. ČELKO, L.

Original Title

SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF AN ADVANCED BaO-MgO-Al2O3-SiO2 SYSTEM AS AN ATTRACTIVE PROTECTIVE-COATING MATERIAL

Type

journal article in Web of Science

Language

English

Original Abstract

One way to increase the turbine efficiency and reduce pollutant emissions would be to work in harsh environments with high temperatures and corrosion environments. Therefore, it is essential to develop new materials that are able to withstand environmental and mechanical conditions. Such coatings are usually a combination of ceramic layers that can better counteract aggressive environments and protect the substrate. Over many years, many ceramic systems have been developed and studied as thermal and ecological barriers. However, the costs and stability of such materials still require research and improvement to decrease the price of production costs, while maintaining the best protective properties. Barium osumilite (BaMg2Al6Si9O30) has many attractive physical and chemical properties that make it most suitable for high-temperature utilities. The main aim of this article is to present a detailed description of a laboratory preparation of Ba-osumilite, including the multistep solid-state reaction after the mechanical activation by high-energy milling and physicochemical characterization of the resulting material, focusing on the microstructure and thermal properties. The thermal-expansion coefficient and microstructure, monitored in view of the changes to the crystallinity, are observed during the heating up to 1200 °C in an Anton Paar HTK 2000 high-temperature chamber.

Keywords

Ba-osumilite, solid-state synthesis, high-energy milling, heat treatment, thermal-expansion coefficient

Authors

RAVASZOVÁ, S.; DVOŘÁK, K.; SKALKA, P.; CASAS LUNA, M.; ČELKO, L.

Released

15. 12. 2020

Publisher

Institute of Metals and Technology

Location

Ljubljana, Slovenia

ISBN

1580-2949

Periodical

Materiali in tehnologije

Year of study

54

Number

6

State

Republic of Slovenia

Pages from

873

Pages to

877

Pages count

5

URL

http://mit.imt.si/izvodi/mit206/ravaszova.pdf

BibTex

@article{BUT165643,
  author="Simona {Ravaszová} and Karel {Dvořák} and Petr {Skalka} and Mariano {Casas Luna} and Ladislav {Čelko}",
  title="SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF AN ADVANCED BaO-MgO-Al2O3-SiO2 SYSTEM AS AN ATTRACTIVE PROTECTIVE-COATING MATERIAL",
  journal="Materiali in tehnologije",
  year="2020",
  volume="54",
  number="6",
  pages="873--877",
  doi="10.17222/mit.2019.181",
  issn="1580-2949",
  url="http://mit.imt.si/izvodi/mit206/ravaszova.pdf"
}