1) magnetic entropy
磁熵
1.
Calculating magnetic entropy changes by magnetization curves;
通过磁化曲线计算磁熵值
2.
The magnetic entropy change in the perovskite-type manganese oxide LaMn(0.
1O3多晶样品,并对其磁熵效应进行了研究。
3.
Then magnetic entropy changes can be calculated.
本文用振动样品磁强计测量金属钆的磁化曲线，采用二步最小乘法拟合出二元曲面 Ｍ（ Ｈ， Ｔ）的表达式，从而计算出它的磁熵变。
2) magnetic entropy change
磁熵变
1.
Study on the crystal structure and magnetic entropy change properties of La_(0.8)Pr_(0.2)Fe_(13-x)Si_x(x=1.8,2.0) intermetallic compounds;
La_(0.8)Pr_(0.2)Fe_(13-x)Si_x金属间化合物的晶体结构和磁熵变研究
2.
The crystal structure and magnetic entropy change of fast-quenched low purity Gd_5Si_2Ge_2 alloy;
快淬低纯Gd_5Si_2Ge_2合金的结构和磁熵变
3.
Study on magnetic entropy changes in Ce_2Fe_(16.5)Co_(0.5) alloy;
Ce_2Fe_(16.5)Co_(0.5)合金的磁熵变研究
3) magnetic entropy changes
磁熵变
1.
The magnetic measuremnet showed that the Curie temperature T_c increases from 246?K to 297?K by adding hydrogen atom, and the magnetic entropy changes around the Curie temperature decreases from -7.
磁性测量结果表明,H原子的引入,使合金的居里温度从246K提高到297K;同时,合金在居里温度附近的最大磁熵变从-7。
2.
The magnetization curves of these alloys were measured with vibration sample magnetometer, from which magnetic entropy changes were calculated and magnetocaloric effect were evaluated.
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。
3.
The magnetic entropy changes(△SM) as a function of the temperature(T) in magnetic field (1 T) for DyCo2 samples have been calculated.
用振动样品磁强计测量DyCo2化合物的磁化曲线,采用二元函数在矩形区域的双一次插值逼近拟合出M (T, H )的二元函数表达式,然后根据磁熵变的热力学公式,计算出它的磁熵变值。
4) magnetic entropy
磁熵变
1.
Two kinds of room temperature refrigerant materials were studied in detail and their process, structure and the change of magnetic entropy were researched.
衡量磁致冷材料性能好坏的主要参量是磁熵变△Sm，目前无法通过直接测量得到磁熵变。
5) magnetic entropy change
磁熵变化
1.
From the measurement and calculation of magnetization under various temperatures, we have discovered large magnetocaloric effect with the ferromagnetic-paramagnetic transition, additional magnetism exchange action introduces additional magnetic entropy change.
通过不同温度下的等温磁化(M-H)曲线的测量和计算,发现伴随铁磁-顺磁(PM-FM)相变出现大的磁热效应,额外的磁性交换作用将导致额外的磁熵变化。
2.
From the measurement and calculation of magnetization under various temperatures, we have discovered large magnetocaloric effect with the ferromagnetic paramagnetic transition, additional magnetism exchange action introduces additional magnetic entropy change.
3MnO3的磁热效应进行了研究 ,通过不同温度下的等温磁化 (M H)曲线的测量和计算 ,发现伴随铁磁 顺磁相变出现大的磁热效应 ,额外的磁性交换作用将导致额外的磁熵变化 。
6) shoulder peak of magnetic entropy
磁熵肩峰
1.
With the appearance of shoulder peak of magnetic entropy , the peak of magnetic entropy change is enlarged, thu.
1 O3的巨磁熵进行了研究 ,发现伴随铁磁 顺磁相变有一个大的磁熵变化 ;在 3 3 7K左右出现了一个磁熵肩峰 ,并随磁场的增大而愈加明显。
补充资料：磁铅石型旋磁铁氧体
分子式：
CAS号：
性质：晶体结构和天然磁铅石Pb(Fe7.5Mn3.5A10.5Ti0.5)19类似的铁氧体称为磁铅石型铁氧体。其结构对称性较尖晶石型的为低。其中晶体具有各向异性大、矫顽力高的六角晶系铁氧体，称为磁铅石型微波铁氧体。主要有M型(BaFe12O19)和W型(BaM2+2Fel6O27)，M为锰、钴、镍、锌、镁等二价金属离子。通过离子代换部分Ba2+，可获得BaO-MO-Fe2O3三元系的磁铅石型复合铁氧体，并可使各向异性场在一定范围内变化。制造方法可用一般磁性瓷生产工艺，热压烧结或气氛烧结制成。用于微波频段，可制成隔离器、相移器、调制器、环行器等线性器件和倍频器、限幅器、振荡器、混频器、参量放大器等非线性器件。是发展现代微波技术的重要材料。
CAS号：
性质：晶体结构和天然磁铅石Pb(Fe7.5Mn3.5A10.5Ti0.5)19类似的铁氧体称为磁铅石型铁氧体。其结构对称性较尖晶石型的为低。其中晶体具有各向异性大、矫顽力高的六角晶系铁氧体，称为磁铅石型微波铁氧体。主要有M型(BaFe12O19)和W型(BaM2+2Fel6O27)，M为锰、钴、镍、锌、镁等二价金属离子。通过离子代换部分Ba2+，可获得BaO-MO-Fe2O3三元系的磁铅石型复合铁氧体，并可使各向异性场在一定范围内变化。制造方法可用一般磁性瓷生产工艺，热压烧结或气氛烧结制成。用于微波频段，可制成隔离器、相移器、调制器、环行器等线性器件和倍频器、限幅器、振荡器、混频器、参量放大器等非线性器件。是发展现代微波技术的重要材料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条