Negative coefficient of thermal expansion particles and...

Details Negative coefficient of thermal expansion particles and... Negative coefficient of thermal expansion particles and...

2003-11-06

2009-08-25

Zimmerman, John J (Department: 1794)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S313900, C428S313900, C428S570000, C252S512000

Reexamination Certificate

active

07579069

ABSTRACT:
A negative coefficient of thermal expansion particle includes a first bilayer having a first bilayer inner layer and a first bilayer outer layer, and a second bilayer having a second bilayer inner layer and a second bilayer outer layer. The first and second bilayers are joined together along perimeters of the first and second bilayer outer layers and first and second bilayer inner layers, respectively. The first bilayer inner layer and the second bilayer inner layer are made of a first material and the first bilayer outer layer and the second bilayer outer layer are made of a second material. The first material has a greater coefficient of thermal expansion than that of the second material.

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patent: 4775598 (1988-10-01), Jaeckel
patent: 4820503 (1989-04-01), Wang et al.
patent: 5406210 (1995-04-01), Pedder
patent: 5512094 (1996-04-01), Linton
A Dictionary of Metallurgy, A.D. Merriman, MacDonald & Evans, LTD, 1958, Table of Physical Properties, p. xiv.

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