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✦   LIBER   ✦

The surface composition and energetics of type a graphite fibers

✍ Scribed by Lawrence T. Drzal

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
998 KB
Volume
15
Category
Article
ISSN
0008-6223

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✦ Synopsis

The surfaces of Hercules Type A PAN-based graphite fibers both treated (AS) and untreated (ACT) were investigated using thermal deso~tion, krypton adso~tion thermodynamics and ISS t SIMS techniques. Surface treatment enhanced the surface energetics of these fibers on 39% of the surface over the untreated fiber. In addition, the surface treatment increases the affinity of the fiber surface for adsorbed material by a factor of 8 over the untreated fiber surface. Surface spectroscopy has shown that one surface constituent is sodium which is present in very large concentration on these fibers.

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