spinel Archives | The American Ceramic Society

spinel

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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Sintering technique processes ultrafine nanocrystalline spinel with grain sizes of less than 10 nm

By April Gocha / December 6, 2016

By further understanding the dependence between densification and grain growth, a University of California Davis team of researchers has devised a new process to fabricate fully dense ceramic parts with virtually no grain growth.

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Other materials stories that may be of interest

By April Gocha / June 23, 2015

Dilatometry moves beyond thermal expansion, X-rays reveal secrets, and other materials stories that may be of interest for June 23, 2015.

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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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Magnesium two-steps lithium ions for better batteries

By April Gocha / April 22, 2015

Research from the University of Illinois at Chicago shows that magnesium ions—with two positive charges—can replace single-charge lithium ions in future batteries.

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Next-gen armor windows: See-through ceramics developed at NRL are 50 percent harder

By April Gocha / May 2, 2014

The US Naval Research Laboratory has developed a superior see-through ceramic nanocrystalline spinel, both highly transparent and strong, with ambitions to improve armor windows for military vehicles.

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Bulletin April 2005 Vol 84, No. 4 Online-only papers

By Eileen De Guire / March 22, 2012

Fiber-Reinforced Alumina-Based Composites Using Nonwoven Cellulose FabricsFibrous alumina has been fabricated using vacuum infiltration of aqueous alumina slurry into two-dimensional nonwoven cellulose fabric.M. Awaad, S.M. Naga, T. Khalifa, P. Greil, O. Russina, N.A. Ibrahim Optimizing Stain Resistance in TileA two-level full-factorial experimental design has been successfully used to generate an empirical linear regression model for…

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Bulletin June 2006 Vol 85, No. 6 Online-only papers

By Eileen De Guire / March 12, 2012

“Extrudability of Cement-Based Materials”A penetration resistance test was used to assess the extrudability of cementitious materials.Y. Chen, L. J. Struble and G. H. Paulino “Zirconia-Magnesium Aluminate Spinel Composite”Improved ZrO2-MgAl2O4 composite was prepared by solid-state sintering.R. Lodha, A. Ghosh and B. Mukherjee and G.N. Agrawal

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Video of the week: Ceramic spinel transparent armor

By / September 17, 2010

Pretty tough stuff! This clear armor is made by South Carolina-based ArmorLine Corp, which describes this as a spinel transparent ceramic. The ArmorLine rep in the video says the plates are one-half the thickness and one-half the weight of conventional, laminated “bullet-proof glass” with similar projectile-stopping power. On its web page, the company says it…

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