TEM observation of sintered permanent magnetic strontium ferrite 被引量：1

TEM observation of sintered permanent magnetic strontium ferrite

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摘要 Sintered permanent magnetic strontium ferrites were studied using transmission electron microscopy to investigate the microstructure morphology and its correlation with the magnetic properties. The present study shows that the microstructure of sintered permanent magnetic strontium ferrites is an important parameter in determining their magnetic properties. The microstructure morphology in low-performance ferrite magnet is obviously different from high-performance one. The magnetic properties of sintered permanent strontium ferrite depend strongly on the orientation degree of strong magnetic crystals. The presence of ferric oxide phase in ferrite magnet can deteriorate the magnetic properties. Moreover, proper quantities of crystal defects are beneficial to high coercive force due to the fixing of magnetic domain. Sintered permanent magnetic strontium ferrites were studied using transmission electron microscopy to investigate the microstructure morphology and its correlation with the magnetic properties. The present study shows that the microstructure of sintered permanent magnetic strontium ferrites is an important parameter in determining their magnetic properties. The microstructure morphology in low-performance ferrite magnet is obviously different from high-performance one. The magnetic properties of sintered permanent strontium ferrite depend strongly on the orientation degree of strong magnetic crystals. The presence of ferric oxide phase in ferrite magnet can deteriorate the magnetic properties. Moreover, proper quantities of crystal defects are beneficial to high coercive force due to the fixing of magnetic domain.

作者 YU Hongya LIU Zhengyi ZENG Dechang

机构地区 College of Mechanical Engineering

出处《Rare Metals》 SCIE EI CAS CSCD 2006年第z1期578-583,共6页 稀有金属（英文版）

基金 This work was financially supported by the Key Technologies R&D Program of Guangdong Province, China (No. 2004B10301009).

关键词 permanent magnetic strontium ferrite TEM Moiré pattern crystal defect permanent magnetic strontium ferrite TEM Moiré pattern crystal defect

分类号 TG146.4 [金属学及工艺—金属材料]

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同被引文献34

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TEM observation of sintered permanent magnetic strontium ferrite 被引量：1

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