Optimizing the synthesis of ultrafine tungsten carbide powders by effective combinations of carbon sources and atmospheres

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• 作者：R. Oro^a ; ^{raquel.oro.calderon@tuwien.ac.at} ; E. Hryha^b ; ^{hryha@chalmers.se} ; R. Gilardi^c ; ^{raffaele.gilardi@imerys.com} ; L. Alzati^c ; ^{luigi.alzati@imerys.com} ; L. Nyborg^b ; ^{lars.nyborg@chalmers.se}
• 关键词：WC-powder synthesis ; Carbothermal reduction ; Metal/oxide-carbon-atmosphere interaction ; Mechanical and thermal activation ; Carbothermal reduction ; Carbon sources
• 刊名：International Journal of Refractory Metals and Hard Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：63
• 期：Complete
• 页码：9-16
• 全文大小：1640 K
• 卷排序：63

文摘

Synthesis of WC-powder by mechanical and thermal activation with W or WO3 sources Study the effect of the interaction with different carbon sources and atmospheres Synthesis of submicron WC powders achieved at 1100 °C Additions of CO to inert atmospheres assess the reduction/carburization process Interaction of CO atmospheres more efficient with graphite than with carbon black