Method for making graded composite bodies and bodies produced thereby
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United States of America Patent
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Aug 27, 1996
Issued Date -
N/A
app pub date -
Dec 12, 1994
filing date -
Apr 29, 1991
priority date (Note) -
Expired
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Abstract
The present invention relates to the formation of bodies having graded properties. Particularly, the invention provides a method for forming a metal matrix composite body having graded properties. The graded properties are achieved by, for example, locating differing amounts of filler material in different portions of a formed body and/or locating different compositions of filler material in different portions of a formed body and/or locating different sizes of filler materials in different portions of a formed body. In addition, the invention provides for the formation of macrocomposite bodies wherein, for example, an excess of matrix metal can be integrally bonded or attached to a graded metal matrix composite portion of a macrocomposite body. Moreover, if desired, it is possible to produce a metal matrix composite body with substantially the same properties throughout.
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