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Article: Transformation behavior of cerium.
- Article from:
- Advanced Materials & Processes
- Article date:
- February 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 ASM International. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The Jacquet-Lucas Award is given each year to the winner of the IMS/ASM Metallographic Contest. It consists of a gold medal and $3000 conferred by IMS, an Affiliate Society of ASM International, for the microstructural analysis entry showing the highest level of technical expertise.
Cerium is unique among the elements in that it undergoes a polymorphic transformation directly from one face-centered cubic (fcc) structure to another fcc structure that has a different density. For example, at room temperature the gamma ([Gamma]) phase transforms under pressure to the alpha ([Alpha]) higher-density phase, and the reverse transformation occurs on decompression ...