Izvorni znanstveni članak
Determination of elastic constants of m-dinitrobenzene from diffuse reflections of X-rays
Satyabrata Sarkar
; X-Ray Laboratory, Molecular Physics Division, Department of Physics, Jadavpur University, Calcutta-700 032, India
Samarendra K. Talapatra
; X-Ray Laboratory, Molecular Physics Division, Department of Physics, Jadavpur University, Calcutta-700 032, India
Sažetak
The absolute values of all the nine elastic constants of orthorhombic m-dinitrobenzene have been determined at room temperature (293 K-295 K) from the measurement of intensities of thermal diffuse scattering (TDS) of X-rays using photographic-photometric method. A series of Laue photographs were taken with a monochromatic CuKα radiation obtained by reflection from a fluorite crystal. Diffuse scattering domains near the reciprocal lattice nodes 600, 040, 081, 101 and 520 were extensively studied. The values of elastic constants in units of 109 Nm-2 are: C11 = 10.70 (05), C22 = 11.30 (03), C33 = 20.27 (19), C44 = 4.37 (04), C55 = 2.04 (05), C66 = 5.31 (03), C12 = 6.30 (18), C13 = 1.95 (14), C23 = 3.19 (16). The accuracy of the experimentally determined values of the constants is discussed.
Ključne riječi
Hrčak ID:
331439
URI
Datum izdavanja:
5.7.1988.
Posjeta: 361 *