CHO, YW CHARLES, JA 2024-01-21T23:44:37Z 2024-01-21T23:44:37Z 2022-01-11 1991-05 0267-0836 https://pubs.kist.re.kr/handle/201004/146797 Silicon aluminium oxynitride (beta' sialon) powders have been prepared by reacting kaolin-carbon mixtures at 1400-1500-degrees-C in flowing nitrogen. The kaolin/carbon ratio in the starting mixtures must be accurately controlled to obtain single phase beta' powders. The overall reaction rate increased with increasing nitrogen flowrate. However, if the nitrogen flowrate was too high, the amount of 15R and AlN phases in the reaction products increased. A change of carbon source in the starting mixtures affected the phase composition as well as the morphology of the product powders. It was found that the evaporation of SiO is a most important factor in the reaction, strongly affecting the phase composition of the reaction products. English TAYLOR & FRANCIS LTD POLYACRYLONITRILE INTERCALATION COMPOUND BETA-SIALON CARBON SYNTHESIS OF NITROGEN CERAMIC POWDERS BY CARBOTHERMAL REDUCTION AND NITRIDATION .2. SILICON ALUMINUM OXYNITRIDE (SIALON) Article 10.1179/mst.1991.7.5.399 1 MATERIALS SCIENCE AND TECHNOLOGY, v.7, no.5, pp.399 - 406 MATERIALS SCIENCE AND TECHNOLOGY 7 5 399 406 scie scopus A1991FQ51200003 2-s2.0-0026155160 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article POLYACRYLONITRILE INTERCALATION COMPOUND BETA-SIALON CARBON