CAJ | 학술논문

本文采用溶胶-凝胶法制备了CoFe2O4/SiO2纳米复合材料,利用X射线衍射仪（XRD）、红外吸收光谱（IR）和扫描电子显微镜（SEM）研究了纳米复合材料的结构、晶粒尺寸和形貌。结果表明,随着热处理温度的提高,钴铁氧体晶化程度提高,CoFe2O4/SiO2纳米复合材料的晶粒尺寸从6nm增大到52nm。当热处理时间为2小时,晶体结构已经较完整,继续延长热处理时间对晶体结构基本无影响。
본문채용용효-응효법제비료CoFe2O4/SiO2납미복합재료,이용X사선연사의（XRD）、홍외흡수광보（IR）화소묘전자현미경（SEM）연구료납미복합재료적결구、정립척촌화형모。결과표명,수착열처리온도적제고,고철양체정화정도제고,CoFe2O4/SiO2납미복합재료적정립척촌종6nm증대도52nm。당열처리시간위2소시,정체결구이경교완정,계속연장열처리시간대정체결구기본무영향。
CoFe2O4/SiO2 nanocomposites were prepared by the sol-gel method.The structure,grain size and morphology of powders are investigated with X-ray diffraction(XRD),infra-red spectrometric analyzer(IR) and scanning electron microscope(SEM).The results indicated that with the increasing of heat treatment temperature,the crystallization degree of CoFe2O4 increased and the grain size of CoFe2O4/SiO2 nanocomposites grew up from 6 nm to 52 nm.When heat treatment time was 2 hour,the crystal structure has been formed and longer heat treatment time didn't affect grain size.