CAJ | 학술논문

改进了JA-SW混合模型,使之能处理具有两种单轴各向异性的磁体.数值研究了面内应力对铁磁薄膜磁滞损耗和矫顽力的影响.结果表明,磁滞损耗和矫顽力与应力强度和应力施加方向以及外场取向有关.磁滞损耗或矫顽力随应力强度变化的关系曲线并不完全是单调增加的,比如当外场与易轴方向平行时会出现弯曲.另外,应力会造成矫顽力随外场取向角关系曲线的峰值偏移.结果与文献资料进行了广泛对比并对其差异进行了解释.
개진료JA-SW혼합모형,사지능처리구유량충단축각향이성적자체.수치연구료면내응력대철자박막자체손모화교완력적영향.결과표명,자체손모화교완력여응력강도화응력시가방향이급외장취향유관.자체손모혹교완력수응력강도변화적관계곡선병불완전시단조증가적,비여당외장여역축방향평행시회출현만곡.령외,응력회조성교완력수외장취향각관계곡선적봉치편이.결과여문헌자료진행료엄범대비병대기차이진행료해석.
The JA-SW hybrid model is extended in order to include the strain or stress anisotropy. With this improved model, a simulation is carried out to study the effects of stress on magnetic hysteresis loss and coercivity of ferromagnetic film. It is shown that the hysteresis loss and coercivity are related to the external field orientation, the stress intensity and the stress direction. Hysteresis loss, or the coercive force does not entirely monotonially increase with the change of stress intensity. For example, when the external field is parallel to the easy axis, a valley appears in the curve. In addition, stress will cause the peak offset of the coercivity curve as the orientation angle of the external field changes. Extensive comparisons of results with literature data are made and the differences between them are explained.