期刊
JOURNAL OF MATERIALS SCIENCE
卷 39, 期 13, 页码 4113-4118出版社
SPRINGER
DOI: 10.1023/B:JMSC.0000033391.65327.9d
关键词
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Objects with a fine-scale design of bimetallic beams can display negative thermal expansion. Based on a unit cell design for a negative expansion, produced by Optimal Design methods, we fabricate a thermoelastic artificial material using coextrusion of iron and nickel oxides, followed by reductive sintering. A bulk sample with 162 unit cells from Fe-60Ni and Fe-36Ni alloys displayed a thermal expansion coefficient of -3.0 x 10(-6)/degreesC, in agreement with the optimal design prediction. (C) 2004 Kluwer Academic Publishers.
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