The determination of the elastic properties of an anisotropic polycrystalline graphite using neutron diffraction and ultrasonic measurements

0363144 - GLÚ 2012 RIV US eng J - Journal Article
Lokajíček, Tomáš - Lukáš, Petr - Nikitin, A. N. - Papushkin, I.V. - Sumin, V. V. - Vasin, R.N.
The determination of the elastic properties of an anisotropic polycrystalline graphite using neutron diffraction and ultrasonic measurements.
Carbon. Roč. 49, č. 4 (2010), s. 1374-1384. ISSN 0008-6223. E-ISSN 1873-3891
R&D Projects: GA ČR GA205/08/0676
Institutional research plan: CEZ:AV0Z30130516; CEZ:AV0Z10480505
Keywords : extruded graphite * elastic properties * neutron diffraction * ultrasonic sounding * thermal-expansion * self-consistent * young moduls * porosity * stress * rocks
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 4.893, year: 2010

The elastic properties of extruded graphite have been examined. The bulk elastic properties of polycrystalline graphite have been calculated using various averaging methods and compared with the properties obtained from the measurements of the longitudinal sound velocities, Static elastic modulus as well as the diffraction elastic modulus was measured by high resolution neutron diffraction. It was shown that the anisotropy of the elastic properties of reactor graphite is due to the crystallographic texture formed during the extrusion process.
Permanent Link: http://hdl.handle.net/11104/0199207