transparent armor Archives | The American Ceramic Society

transparent armor

High heat and pressure help researchers fabricate first samples of transparent silicon nitride

By April Gocha / March 23, 2017

By processing samples of silicon nitride under high pressure and heat, researchers at the Deutsches Elektronen-Synchrotron have converted an originally opaque hexagonal crystal structure into optically transparent cubic silicon nitride.

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Other materials stories that may be of interest

By April Gocha / March 15, 2017

Polymer-coated silicon nanosheets could offer alternative to graphene, supercomputer helps design jets from composite materials that will burn less fuel, and other materials stories that may be of interest for March 15, 2017.

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Sintering spinel: NRL scientists fabricate unique shapes with special ceramic

By April Gocha / May 28, 2015

U.S. Naval Research Lab scientists have perfected a sintering technique that can not only produce harder spinel, but also larger pieces and those with challenging shapes—all thanks to a deconstruction of the science behind the process.

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Companies race to scale up spinel for armor, optical applications

By Jim Destefani / June 14, 2013

Artist’s rendering of the USS Zumwalt in action. First in a new class of Navy destroyers, the Zumwalt will use transparent MgAl2O4 deckhouse windows. Credit: US Navy. Two manufacturers are in a bit of an “arms race” to commercialize aluminum oxynitride and magnesium aluminate transparent polycrystalline cubic spinel for defense and other applications. We did a…

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Ceramics and glass business news of the week

By Eileen De Guire / May 31, 2013

Surmet’s large-scale transparent aluminum oxynitride armor window. The company is on track to scale up fabrication processes to double the size of the windows in the next year. Credit: Surmet. Surmet achieves major milestone on its ALON window scale-up program Surmet has successfully delivered 18×35-inch size monolithic ALON windows, achieving a major milestone on its…

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Ceramics and glass business news of the week

By / November 29, 2012

Here’s what we are hearing: 3M completes acquisition of Ceradyne 3M announced that it has completed its acquisition of Ceradyne Inc. effective as of Nov. 28, 2012, pursuant to the previously announced merger agreement among Ceradyne, 3M, and 3M’s wholly owned subsidiary, Cyborg Acquisition Corp., through the merger of Cyborg Acquisition Corp. with and into…

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Ceramics and glass business news of the week

By / August 16, 2012

Here’s what we are hearing: Ceradyne acquires interest in Graphite Machining Services and Innovations Ceradyne Inc. nnounced that it has acquired a minority interest with an option to acquire all of Tempe, Arizona-based Graphite Machining Services and Innovations. GMSI has developed a proprietary method of applying a chemical vapor deposited silicon carbide ceramic coating on…

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Ceramics and glass business news of the week

By / July 13, 2012

Here is what we are hearing: Surmet’s transparent, tiled, three-panel ALON armor window. Credit: Surmet. Advances in making large ALON transparent armor windows Surmet continues its advances in fabricating cost effective large area ALON transparent armor windows for many applications. Current capability allows for monolithic ALON windows to be fabricated in sizes as large as…

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Other materials science stories that may be of interest

By / June 5, 2012

This “trigonal bipyramidal” crystalline structure that forms the basis of Oregon State University‘s “cool blue” pigment (see below). Credit: OSU. Check ’em out: “I like to break things”: Janine Schneider breaks things in the name of science As Janine Schneider walks through the materials testing facility, her eyes light up; it is clear that she…

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Ceramics and glass business news of the week

By / February 3, 2012

Here is what we are hearing: Integration of Hanse Chemie Inc. USA, into Evonik Goldschmidt Corp. As of Jan. 1, 2012, the US Hanse Chemie business of Hanse Chemie AG and Nanoresins AG, has been merged into Evonik Goldschmidt Corp. At the same time, Hanse Chemie Inc. USA has been dissolved as a legal entity.…

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