thermal barrier coatings

Plane protection: Alumina and titania improve the corrosion resistance of thermal barrier coatings to molten glass

By Lisa McDonald / August 18, 2023

Thermal barrier coatings protect engine components from extreme heat, but they can be damaged by the dust that gets sucked in and turned into molten glass. Previous studies found yttria-stabilized zirconia coatings doped with alumina and titania demonstrated improved corrosion resistance against this molten glass. Now, researchers in Turkey explored whether these additives could improve the resistance of ceria-stabilized coatings as well.

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New method shows promise repairing localized damage in thermal barrier coatings

By Lisa McDonald / July 12, 2022

Repairing localized damage in thermal barrier coatings on aircraft turbine blades can require full coat removal and reapplication to avoid blocking cooling holes in the blade. Forschungszentrum Jülich researchers proposed a new laser-cladding-based additive manufacturing technique that shows promise repairing localized damage without the need for full coat removal.

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Will it spall? Phase diagrams, thermal expansion, and barrier coating degradation

By Jonathon Foreman / August 11, 2020

Thermal and environmental barrier coatings are often used to protect turbine blades made from ceramic matrix composites—but these coatings are prone to damage caused by environmental silicate contamination. In three papers published in JACerS, researchers provide extensive insights into the many aspects of damage.

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Protecting equipment in steel production: Thermal barrier coatings created from steel waste stream

By Jonathon Foreman / October 25, 2019

Thermal barrier coatings protect equipment against high temperatures in steel production. Researchers from Bartin University in Turkey found ferrochromium slag, a waste product from stainless steel production, could be used to create such coatings.

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Celebrating ACerS 2017 awards and honors, plus more inside September ACerS Bulletin

By April Gocha / August 17, 2017

The September 2017 issue of the ACerS Bulletin—featuring ACerS 2017 class of awards, an interagency report on ceramic coatings to improve engine efficiency, and a novel bauxite porcelain microstructure for high-voltage insulation—is now available online.

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Automotive glass gets lighter and tougher with Gorilla Glass, plus more inside May ACerS Bulletin

By April Gocha / April 20, 2017

The May 2017 issue of the ACerS Bulletin—featuring articles about Gorilla Glass automotive windshields, 3-D-printed polymer-derived CMCs, a composite-like semiconductor crystal, and dynamics of glass relaxation—is now available online.

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The skinny from 39th ICACC in Daytona Beach, where we learn how fat makes knees

By Eileen De Guire / January 27, 2015

More than 1,100 scientists and engineers have escaped winter’s wrath and converged on Daytona Beach, Fla. for the 39th edition of the International Conference on Advanced Ceramics and Composites. Couldn’t make it? Eileen recaps the first half of the warm-weather meeting.

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Happy New (Bulletin) Year—The Jan/Feb 2015 ACerS Bulletin is now online

By April Gocha / December 31, 2014

It’s rather fitting that on the final day of 2014, we are unveiling the first issue of the 2015 ACerS Bulletin—Volume 94, issue Number 1 of the Bulletin is now available online for your viewing pleasure.

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Ash, sand-resistant thermal barrier coatings and novel test rig

By Eileen De Guire / February 21, 2012

Apropos to the latest round of ash clouds spewing from the EyjafjallajökullI volcano, plus indications that some
utilities are going to be building new high-temperature fast-cycle gas turbines for peak electrical power generation, we offer this video that expands on a story I first wrote about in April.

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Video of the week: Ash, sand-resistant thermal barrier coatings and novel test rig

By / June 2, 2011

[flash https://ceramics.org/ceramictechtoday/wp-content/video/osu_turbine_coatings.flv mode=1 f={image=/ceramictechtoday/wp-content/video/osu_turbine_coatings.jpg}] Apropos to the latest round of ash clouds spewing from the EyjafjallajökullI volcano, plus indications that some utilities are going to be building new high-temperature fast-cycle…

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