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Elastic constants of high-texture pyrolytic carbon measured by ultrasound phase spectroscopy

✍ Scribed by J.-M. Gebert; B. Reznik; R. Piat; B. Viering; K. Weidenmann; A. Wanner; O. Deutschmann

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
717 KB
Volume
48
Category
Article
ISSN
0008-6223

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✦ Synopsis

All independent elastic constants for pyrolytic carbon with a well-documented texture are measured experimentally. According to polarized light microscopy and high-resolution transmission electron microscopy, the material is high-textured and does not exhibit any textural gradients along the deposition direction. For this material, the elastic constants were determined by ultrasound phase spectroscopy and show transverse isotropy with C 11 = 40, C 12 = 20, C 13 = 13.1, C 33 = 18.2, C 44 = 1.8 GPa. The overall density was determined to be 2.178 g/cm 3 .

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