volcanic ash Archives | The American Ceramic Society

volcanic ash

High-tech methods confirm Pliny the Elder’s observations and reveal new insights into strength of Roman concrete

By April Gocha / July 31, 2017

An international group of scientists recently found that the key to the strength of ancient Roman concrete is the presence of aluminous tobermorite, a mineral that slowly forms within voids and prevents cracks from traversing through the concrete.

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NASA gives jet engines layer of glass with injection of volcanic ash

By April Gocha / December 6, 2015

Scientists at NASA have taken measurements of what happens in full-scale tests—in which the scientists injected actual volcanic ash into an operating jet engine—and will spend the next several months analyzing the experimental data.

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The ancient Roman secret to more ductile concrete could be buried (miles) beneath our feet

By Stephanie Liverani / July 13, 2015

The latest research to shed light on the ductility and durability of ancient concrete comes from geophysicists at the Stanford University, who discovered concrete-like rock deep within a dormant volcano in Italy they say could explain how ancient Romans invented the compound used to build structures like the Pantheon and Colosseum.

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Volcanic lightning zaps ash into glass

By April Gocha / March 9, 2015

New research from an international team of scientists suggests that natural glass spheres are born during another natural phenomenon—volcanic lightning.

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Unique crystals prevent crack propagation and bestow strength to ancient Roman concrete

By April Gocha / January 6, 2015

A new study confirms that unique aluminum-containing crystals that form in Roman concrete are behind the material’s robust strength and durability.

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Look out MRSA, here come ceramics: Clay may be key to thwarting antibiotic-resistant bacteria

By April Gocha / July 30, 2014

Arizona State University and US Geological Survey scientists report that mineral clay deposits may be key to stemming worldwide increases in deadly antibacterial resistance.

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Effect of volcano ash particle size on jet engines

By Eileen De Guire / October 15, 2013

A University of Cambridge (UK) team looked at factors that contribute to volcanic ash sticking to surfaces of a turbine of a small turbojet engine, focusing on tow key parameters—gas (and particle) temperature and turbine surface temperature.

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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 gas turbines for peak electrical power generation, we offer this video that expands on a story I first wrote about in April. It regards an…

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