caa a22 4500 463229479 CHVBK 20180405153237.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0780-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0780-6 Fabrication of SiC by carbothermal-reduction reactions of diatomaceous earth [Elektronische Daten] [Branko Matovic, Aleksandra Saponjic, Aleksandar Devecerski, Miroslav Miljkovic] In this paper the possibility of using diatomaceous earth as Si precursor for low temperature synthesis of silicon carbide (SiC) by carbothermal-reduction reactions was studied. A diatomaceous earth of Serbian origin and carbon black as reducing agent were used. The green bodies with constant C/SiO2 ratio (C/Si=4) were heated at temperatures between 1,250°C and 1,550°C with controlled Ar flow atmosphere. Phase evolution was followed as a function of annealing time and sintering temperature. It was found that reaction proceeded via many intermediate phases. The comparatively low reaction temperature is attributed to the nano-porous nature of the raw material. By means of XRD and SEM investigations powders have been characterized. The results show that diatomaceous earth can be very effective source for obtaining of silicon carbide powders. Springer Science+Business Media, LLC, 2007 Matovic Branko Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut Saponjic Aleksandra Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut Devecerski Aleksandar Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut Miljkovic Miroslav Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5448-5451 0022-2461 42:14<5448 2007 42 10853 https://doi.org/10.1007/s10853-006-0780-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0780-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matovic Branko Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut NATIONALLICENCE 700 1- Saponjic Aleksandra Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut NATIONALLICENCE 700 1- Devecerski Aleksandar Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut NATIONALLICENCE 700 1- Miljkovic Miroslav Materials Science - Lab. 170, Institute of nuclear sciences - Vinca, P.O. Box 522, 11000, Belgrade, Serbia aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5448-5451 0022-2461 42:14<5448 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer