| Structure and Properties of BaFe12O19 Coated Fly Ash Cenospheres by Sol-Gel Process |
| |
| 引用本文： | 曾爱香. Structure and Properties of BaFe12O19 Coated Fly Ash Cenospheres by Sol-Gel Process[J]. 武汉理工大学学报(材料科学英文版), 2006, 21(3): 129-131. DOI: 10.1007/BF02840901 |
| |
| 作者姓名： | 曾爱香 |
| |
| 作者单位： | Department of |
| |
| 基金项目： | 湖南省自然科学基金;湖南省教育厅资助项目 |
| |
| 摘 要： | 1 IntroductionFly ash cenospheres are generated in large amountsas a by-product in thermal power plants and pose majordisposal problems . Fly ash cenosphere particles areunique, property stable , non-toxic , non-metallic hollowmicro-particles . Due to the unique hollowstructure andphysical mechanics properties ,fly ash cenosphere parti-cles have been dispersed in different matrices ,such aspolyester resins ,cement ,and nickel for producing com-posite materialsinthe bulkand coatingformsfor a va…
|
| 关 键 词： | 钡铁氧体 涂层 飞灰煤胞粒子 溶胶-凝胶处理 磁性 结构 |
| 收稿时间： | 2005-05-20 |
| 修稿时间： | 2006-03-05 |
Structure and properties of BaFe12O19 coated fly ash cenospheres by sol-gel process |
| |
| Zeng Aixiang Ph D,Xiong Weihao,Wang Caifang,Zhou Qionghua. Structure and properties of BaFe12O19 coated fly ash cenospheres by sol-gel process[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2006, 21(3): 129-131. DOI: 10.1007/BF02840901 |
| |
| Authors: | Zeng Aixiang Ph D Xiong Weihao Wang Caifang Zhou Qionghua |
| |
| Affiliation: | (1) Department of Materials Science and Technology, Changsha University of Science and Technology, 410076 Changsha, China;(2) State Kay Laboratry of Die and Mould Technology, Huazhong University of Science and Technology, 430074 Wuhan, China |
| |
| Abstract: | Thin films of barium hexaferrite were prepared on fly ash cenosphere particles by the sol-gel method using Fe(NO3)3·9H2O, Ba(NO3)2 and citric acid as raw materials. The prepared films were characterized by differential thermal and thermogravimetric analysis (DTA-TG), X-ray diffractions analysis (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometry. The magnetic and structural properties of barium hexaferrite coated cenosphere particles were also studied. The experimental results show that even and continual barium hexaferrite coatings were prepared on fly ash cenospheres, and the magnetic conductivity was imparted to these non-conducting oxide ceramic particles. The low density barium hexaferrite coated cenosphere particles may be utilized for manufacturing microwave absorbing materials. Funded by Hunan Provincial Natural Science Foundation of China (No. 04JJ3035) and Scientific Research Fund of Hunan Provincial Education Department (No. 03B002) |
| |
| Keywords: | barium hexaferrite coating fly ash cenosphere particles sol-gel |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ |
