Aeronautics & Space

Toward next-gen environmental barrier coatings—effect of thermal ageing on microstructure and elastic properties of ytterbium silicates

By Lisa McDonald / May 10, 2022

Ytterbium-based silicates are a current generation of environmental barrier coating materials that demonstrate much promise for protecting ceramic matrix composite components in jet engines. Researchers from the University of Manchester examined the effect of thermal ageing on microstructural characteristics and elastic properties of these silicates.

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Mullite precursor method may be a game changer for fabricating ceramic matrix composites

By Lisa McDonald / April 22, 2022

Oxide–oxide ceramic matrix composites have desirable properties for use in engine components, but conventional processing techniques usually require high temperatures and pressures, which damage the oxide fiber. Researchers in India developed a one-step process for synthesizing mullite precursors that could lower sintering temperature.

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Video: Startup company looks to launch new method of spaceflight

By Lisa McDonald / February 2, 2022

Finding another way to propel a rocket into space that does not rely on fuel may allow for simpler and less expensive rockets. California-based SpinLaunch is developing a novel ground-based system to launch rockets into orbit using kinetic energy rather than fuel.

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Video: Personal VTOL aerial vehicles headed to consumers in 2022

By Lisa McDonald / January 19, 2022

Attention on futuristic technologies such as driverless cars, flying cars, and foldable smartphones fell largely by the wayside when the COVID-19 pandemic hit in 2020. Swedish company Jetson, though, has been hard at work behind the scenes and this year plans to ship the first 12 units of its personal electric aerial vehicle to consumers.

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Interdisciplinary is so 2021; Ceramics are interplanetary

By Jonathon Foreman / January 14, 2022

In a recent open-access ACerS journal article, ACerS Distinguished Life Member Alex Navrotsky and Arizona State graduate research assistant Megan Householder discuss how the study of planets shares many of the same analytical and computational frameworks as materials science.

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Video: James Webb Space Telescope’s 30-year journey to launch

By Lisa McDonald / January 12, 2022

In December 2021, the James Webb Space Telescope finally launched after decades of delays. Today’s CTT looks at JWST’s 30-year journey to launch and ways that NASA could restructure its approach to large-scale projects in the future.

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The potential of ceramic matrix composites as aerospace radomes—researchers investigate new way to prepare ceramic fibers

By Lisa McDonald / October 29, 2021

Ceramic matrix composites have numerous applications in aerospace, including as radomes to protect sensitive radar devices in an aircraft’s nose. Researchers in China investigated a new way to prepare polymer-derived ceramic fibers for radome composites.

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Disorders of protection—high-entropy oxides for environmental barrier coatings

By Jonathon Foreman / October 1, 2021

Many researchers are working to uncover alternatives to yttria stabilized zirconia for use as environmental barrier coatings. High-entropy oxides are among the classes of materials being explored, and two papers in Journal of the American Ceramic Society explore different high-entropy oxide systems.

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A ‘gentle’ process for aircraft machining—researchers explore shaping SiC/SiC composites via plasma etching

By Lisa McDonald / September 10, 2021

SiC/SiC composites are one of the main ceramic matrix composites being investigated for aerospace applications. Researchers from Germany and China explored the potential of shaping such composites using the “gentle” machining process of plasma etching.

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Processing of high-performance materials, plus more inside September 2021 ACerS Bulletin

By Lisa McDonald / August 19, 2021

The September 2021 issue of the ACerS Bulletin—featuring processing of high-performance materials—is now available online. Plus—ACerS Awards and C&GM.

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