摘要
将纳米磁性粒子嵌入到绝缘基体中形成的磁性复合粒子,在许多方面具有重要意义。本文利用A l-Fe3O4通过机械力化学方法原位生成Fe/A l2O3磁性复合粒子。通过对球磨不同时间的A l-Fe3O4粉末进行X射线衍射(XRD)和示差扫描量热(DSC)分析,结果表明A l-Fe3O4混合粉末通过机械力化学方法可获得Fe/A l2O3复合粒子。同时较为详细地研究了上述体系在机械力化学过程中的物理化学变化,并提出了机械力化学过程中A l-Fe3O4体系固相反应的方式。
The composite particle obtained by embedding magnetic nanoparticles into an insulating matrix has drawn much attention. In our work, Fe/A12O3 magnetic particles were in-situ synthesized by mechanochemical method from Al-Fe3O4. X-ray diffraction （XRD） and differential scanning calorimetry （DSC） experiments were carried out to examine the Al-Fe3O4 powder ball-milled for different time. By analyzing the phases and the width and intensity of diffraction peaks in the XRD patterns, the physicochemical changes in the mechanochemical process were investigated. Also the procedure of the solid state reaction was proposed on the basis of the analysis above.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2006年第5期907-911,共5页
Journal of Synthetic Crystals
基金
山东大学科技攻关计划项目(No.054042)
山东大学大学生科技创新基金项目
