caa a22 4500 465755461 CHVBK 20180323111846.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00500848 doi (NATIONALLICENCE)springer-10.1007/BF00500848 Measurement of optical properties of highly scattering ceramic materials [Elektronische Daten] [S. Moiseev, V. Petrov, S. Stepanov] Radiation transfer in highly scattering ceramics is described by a diffusion approximation based on the asymptotic relation of the radiant flux and the radiant energy density in material depth. In this approximation, a calculation of the effective absorption coefficient k and the radiation diffusion coefficient D is based on the measurement of normal-hemispherical transmission of specimens shaped as various-thickness disks. Taken into account are radiation field, twodimensionality, and the radiation boundary reflection effect. The optical property measurements have been performed on the experimental apparatus based on an integrating sphere, a collimated radiation source, and a twochannel data acquisition and processing system. Results of the measurements of k and D for the silica ceramic are given at room temperature. Plenum Publishing Corporation, 1990 absorption nationallicence ceramics nationallicence diffusion approximation nationallicence optical properties nationallicence radiation nationallicence scattering nationallicence transmittance nationallicence Moiseev S. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut Petrov V. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut Stepanov S. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/3(1990-05-01), 587-596 0195-928X 11:3<587 1990 11 10765 https://doi.org/10.1007/BF00500848 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00500848 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moiseev S. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut NATIONALLICENCE 700 1- Petrov V. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut NATIONALLICENCE 700 1- Stepanov S. Institute for High Temperatures, USSR Academy of Sciences, 127412, Moscow, USSR aut NATIONALLICENCE 773 0- International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/3(1990-05-01), 587-596 0195-928X 11:3<587 1990 11 10765 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer