磁热效应是指绝热过程中铁磁体或顺磁体的温度随磁场强度的改变而变化的现象。 在磁场作用下磁性材料所发生的温度变化，即磁性材料磁化强度的变化所伴随的温度变化。通常，在绝热条件下， 磁化会导致温度上升，而去磁则使温度下降。铁磁和顺磁材料的磁热效应特别大。
磁制冷是利用磁性材料的磁热效应(Magnetocaloric Effect,MCE),即等温磁化时,材料向外界放热,温度升高;绝热退磁时,材料从外界吸热,温度降低。
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...答案 磁致冷，是指以磁性材料为公质的一种全新的制冷技术，其基本原理是借助磁致冷材料的磁热效应（Magnetocaloric Effect,MCE）,即磁致冷材料等温磁化时向外界放出热量，而绝热退磁时从外界吸取热量，达到制冷的目的。
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The structure and magnetocaloric effect in the compounds were investigated by means of X-ray diffraction and magnetic measurements.
通过X射线衍射和磁性测量研究了样品的物相结构和磁热效应。
参考来源 - MnIn this thesis, the main work is to prepare amino-modified Fe3O4 nanoparticles and microspheres with a wide range particle size and to make some investigation on the magnetism and magnetocaloric effect of materials.
本论文的主要工作是采用水热／溶剂热合成方法制备了多种粒径的表面氨基修饰的纳米Fe304颗粒与微球,对这些材料的性质与磁热效应进行了研究。
参考来源 - Fe·2,447,543篇论文数据，部分数据来源于NoteExpress
通过X射线衍射和磁性测量研究了样品的物相结构和磁热效应。
The structure and magnetocaloric effect in the compounds were investigated by means of X-ray diffraction and magnetic measurements.
用振动样品磁强计测量它们的磁化曲线，从而计算出磁熵变，估计出磁热效应。
The magnetization curves of these alloys were measured with vibration sample magnetometer, from which magnetic entropy changes were calculated and magnetocaloric effect were evaluated.
发现采用商业级钆配制合金时，由于杂质抑制了材料的一级相变，未发现巨磁热效应。
The first order phase transformation in the samples made of commercial Gd was destroyed by impurities, and no giant magnetocaloric effect was found.
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