Jet Engine Coatings for Resisting Volcanic Ash Damage

Abstract

Volcanic ash ingested by jet engines can damage conventional Y2O3-stablized ZrO2 thermal barrier coatings (TBCs) used to protect engine parts in the hot section. Newer TBCs, one based on Gd2Zr2O7 and another composed of ZrO2 solid solution containing Y2O3, Al2O3, and TiO2, are found to be highly resistant to such damage from Eyjafjallajökull volcano ash. Photo courtesy of Peter Greenfield. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.