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Shape Changes In Ceramic Particles: A Paradox Explained

Date:
December 8, 1997
Source:
Lawrence Berkeley National Laboratory
Summary:
A long-standing paradox in the theory of sintering ceramics has been resolved by Alan W. Searcy of the Materials Sciences Division at the Ernest Orlando Lawrence Berkeley National Laboratory. Searcy's work promises to shed light on the properties of many ceramics, including layered semiconductors and heat-resistant silicon nitrides.

BERKELEY, CA -- A long-standing paradox in the theory of sintering ceramics has been resolved by Alan W. Searcy of the Materials Sciences Division at the Ernest Orlando Lawrence Berkeley National Laboratory. Searcy's work, done in collaboration with Jeffrey Bullard of the University of Illinois and W. Craig Carter of the National Institute of Standards and Technology, promises to shed light on the properties of many ceramics, including layered semiconductors and heat-resistant silicon nitrides. In sintering, one of the most important processes in ceramics manufacture, fine-powder compacts are heated to temperatures only a little lower than their melting points; atoms and molecules are set in rapid motion, and the particles coalesce, reducing porosity and increasing the strength of the finished product.


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The above story is based on materials provided by Lawrence Berkeley National Laboratory. Note: Materials may be edited for content and length.


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Lawrence Berkeley National Laboratory. "Shape Changes In Ceramic Particles: A Paradox Explained." ScienceDaily. ScienceDaily, 8 December 1997. <www.sciencedaily.com/releases/1997/12/971208071926.htm>.
Lawrence Berkeley National Laboratory. (1997, December 8). Shape Changes In Ceramic Particles: A Paradox Explained. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/1997/12/971208071926.htm
Lawrence Berkeley National Laboratory. "Shape Changes In Ceramic Particles: A Paradox Explained." ScienceDaily. www.sciencedaily.com/releases/1997/12/971208071926.htm (accessed April 23, 2014).

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