INFLUENCE OF PARTICLE SIZE ON THE MAGNETOCALORIC PROPERTIES OF Mn_(1.30)Fe_(0.65)P_(0.5)Si_(0.5) POWDERS

机译：粒径对Mn_（1.30）Fe_（0.65）P_（0.5）Si_（0.5）粉末磁热性能的影响

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We present the results of an experimental investigation on the magnetocaloric properties ofrnMn_(1.30)Fe_(0.65)P_(0.5)Si_(0.5) powders with different average particle sizes. Specific heat capacity under magnetic fieldrncp(H,T) and magnetic field induced isothermal entropy change Δs_(iso)(H,T) were measured by Peltierrncalorimetry. Thermal hysteresis is found to decreases with the particle size, but the refrigerant performance,rnevaluated by using the product Δs_(iso) Δtad of the isothermal entropy change Δs_(iso) and the adiabatic temperaturernchange ΔT_(ad) , has only slight dependence on the particle size.

机译：我们提出了对不同平均粒径的rnMn_（1.30）Fe_（0.65）P_（0.5）Si_（0.5）粉末的磁热性能进行实验研究的结果。用珀耳帖热法测量了磁场下的比热容rncp（H，T）和磁场引起的等温熵变Δs_（iso）（H，T）。发现热滞后性随颗粒尺寸而降低，但制冷剂性能（通过使用等温熵变Δs_（iso）和绝热温度变化ΔT_（ad）的乘积Δs_（iso）Δtad重新评估）粒度。

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来源
《7th international conference on magnetic refrigeration at room temperature》|2016年|1-4|共4页
会议地点 Turin(IT)
作者
A. Bartok; M. Kuepferling; C. Curcio; V. Basso; A. Pasko; K. Zehani; L. Bessais; F. Mazaleyrat; M. LoBue;
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作者单位

SATIE, ENS Cachan, CNRS, Université Paris-Saclay,61 avenue de Président Wilson, 94235 Cachan, France E-mail: andras.bartok@satie.ens-cachan.fr;

Instituto Nazionale de Ricerca Metrologica, Strada delle Cacce 91, 10135Torino, Italy;

Instituto Nazionale de Ricerca Metrologica, Strada delle Cacce 91, 10135Torino, Italy DISAT, Politecnico di Torino, Duca degli Abruzzi 24, 10129, Torino, Italy;

Instituto Nazionale de Ricerca Metrologica, Strada delle Cacce 91, 10135Torino, Italy;

SATIE, ENS Cachan, CNRS, Université Paris-Saclay,61 avenue de Président Wilson, 94235 Cachan, France;

CMTR/ICMPE, CNRS, 2-8 rue H. Dunant, 94230 Thiais, France;

CMTR/ICMPE, CNRS, 2-8 rue H. Dunant, 94230 Thiais, France;

SATIE, ENS Cachan, CNRS, Université Paris-Saclay,61 avenue de Président Wilson, 94235 Cachan, France;

SATIE, ENS Cachan, CNRS, Université Paris-Saclay,61 avenue de Président Wilson, 94235 Cachan, France;

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正文语种 eng
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magnetocaloric materials; differential scanning calorimetry; powder metallurgy; magnetic cooling;

机译：磁热材料；差示扫描量热法；粉末冶金；磁冷却;

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INFLUENCE OF PARTICLE SIZE ON THE MAGNETOCALORIC PROPERTIES OF Mn_(1.30)Fe_(0.65)P_(0.5)Si_(0.5) POWDERS

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