Ferrite multiphase/carbon nanotube composites sintered by spark plasma sintering

Autor:	So Ik Bae, Yongqiang Zhang, Qian Wang, Lu Shen, Jaehyung Lee, H.G. Tang, Weiming Pan, Changshu Xiang, Young-Hwan Han, Xiaobing Zhou, Dong-Yeon Lee, Qing Huang, Jie Zhou, Tongming Huang
Rok vydání:	2014
Předmět:	Nanotube Materials science Spark plasma sintering General Chemistry Condensed Matter Physics Grain size Grain growth Carbothermic reaction visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ferrite (magnet) Grain boundary Ceramic Composite material
Zdroj:	Journal of the Ceramic Society of Japan. 122:768-771
ISSN:	1348-6535 1882-0743
Popis:	Ni-Carbon nanotube (CNT)-Ni0.5Zn0.5Fe2O4 multiphase composites were sintered by spark plasma sintering (SPS) technique. Ni nanoparticles were in-situ formed due to the localized carbothermal reduction by CNTs and well distributed between grain boundaries in the composites. The electrical conductivity of the resultant multiphase composites was strongly dependent on the weight percentage of CNTs. In the SPS process, CNTs acted as "heating source" and improved the consolidation of the composites. The results indicate that the introduction of the CNTs can promote the sintering kinetics of the ferrite ceramics. However, the grain growth kinetics has been inhibited by SPS and the grain size becomes finer. (C) 2014 The Ceramic Society of Japan. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e7eb78376f4ce486d2581836eb2dc96 https://doi.org/10.2109/jcersj2.122.768 Zobrazit plný text záznamu