首页 | 本学科首页   官方微博 | 高级检索  
     


Evolution of morphology and magnetism of Ho(Fe0.5Co0.5)3 intermetallic nanopowders synthesized by HEBM
Affiliation:1. A. Che?kowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland;2. Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pu?ku Piechoty 1A, 41-500 Chorzów, Poland;3. Institute of Materials Science, University of Silesia, 75 Pu?ku Piechoty 1A, 41-500 Chorzów, Poland;1. Advanced Materials Research Center, Materials Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran;2. Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;1. Korea Institute of Industrial Technology, Gwahakdanji-ro 137-41, Gangwon-do, 25440 Republic of Korea;2. Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32611 USA;3. Department of Materials Science and Engineering, Ajou University, World cup-ro 206, Suwon-si, Gyeonggi-do, 443-749 Republic of Korea;4. Korea Institute of Industrial Technology, Gaetbeol-ro 156, Yeonsu-gu, Incheon, 406-840 Republic of Korea;5. Department of Materials Science and Engineering, Korea National University of Transportation, Chungju, 380-702 Republic of Korea;6. Advanced Nuclear Fuel Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353 Republic of Korea;7. School of Chemical and Process Engineering, University of Leeds, Leeds, West Yorkshire, LS2 9JT United Kingdom;1. Department of Materials Science and Engineering, Kyonggi University, Suwon 443-760, Republic of Korea;2. LUMENS, Gyeonggi-do 446-901, Republic of Korea;1. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Department of Solid State Physics, Al. Mickiewicza 30, 30-059 Krakow, Poland;2. AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Al. Mickiewicza 30, 30-059 Krakow, Poland;3. Paul Scherrer Institute, Swiss Light Source, CH-5232 Villigen PSI, Switzerland;4. Institute of Physics, Jan Kochanowski University, Swietokrzyska 15 St., 25-406 Kielce, Poland;5. AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Inorganic Chemistry, Al. Mickiewicza 30, 30-059 Krakow, Poland;6. AGH University of Science and Technology, Faculty of Computer Science, Electronics and Telecommunications, Department of Electronics, Al. Mickiewicza 30, 30-059 Krakow, Poland;1. Department of Materials Engineering, Malek Ashtar University of Technology, P.O. Box 83145/115, Shahin Shahr, Isfahan, Iran;2. Department of Chemistry, Isfahan University of Technology, Isfahan, Iran;1. Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation;2. A. A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119991 Moscow, Russian Federation
Abstract:The morphology and magnetic properties of bulk and ball – milled Ho(Fe0.5Co0.5)3 intermetallic compounds were studied. The influence of the high energy ball – milling (HEBM) duration for the final size of particles and crystallites was confirmed by a variety of complementary measurement methods. The presence of the main PuNi3 type of crystal phase was confirmed for crystalline and as milled samples. The emergence of a partly amorphous phase was confirmed at the end of pulverization (t = 80 h). The synthesis of nanostructured flakes with a thickness of less than 100 nm after applying HEBM for various time periods was confirmed. Additionally, the formation of agglomerates for the prolonged pulverization was evidenced. The non – linear variation of magnetic parameters across milling was observed. Furthermore, a slight exchange bias and deformation of hysteresis loops for as – milled powders was noticed. A quantitative analysis of XPS spectra at the end of grinding process indicates the probable coating of flakes by Fe/Co oxides the amount of which varies over ion etching.
Keywords:Nanocrystalline metals  Magnetic properties  Nanocrystalline structure  Mechanical alloying and milling  Microstructure
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号