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Science 10 July 1970:
Vol. 169. no. 3941, pp. 178 - 179
DOI: 10.1126/science.169.3941.178
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Articles

Density-Modulus Relationship in Graphite Fibers Made from Acrylic Yarns

Herbert M. Ezekiel 1

1 Fibrous Materials Branch, Air Force Materials Laboratory, Air Force Systems Command, Wright-Patterson Air Force Base, Ohio 45433

Three types of polyacrylonitrile yarn were converted to graphite fibers. There was a linear relation between density and Young's modulus of the graphite fibers, the ranges observed being 1.58 to 2.18 grams per cubic centimeter and 25 to 112 x 106 pounds per square inch.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)