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afu0007: 金币+6, ★★★★★最佳答案, 谢谢了 2017-05-19 15:58:01
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一楼结果错误 Influence of minor Pr substitution on the magnetocaloric effect of Mn1-x Pr (x) As 作者:Gu, ZF (Gu, Z. F.)[ 1 ] ; Xu, CF (Xu, CH. F.)[ 1,2,3 ] ; Hong, LJ (Hong, L. J.)[ 1 ] ; Cheng, G (Cheng, G.)[ 1 ] ; Hu, K (Hu, K.)[ 1 ] ; Lin, RS (Lin, R. S.)[ 1 ] JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 卷: 28 期: 9 页: 6806-6811 DOI: 10.1007/s10854-017-6378-8 出版年: MAY 2017 查看期刊信息 摘要 The influence of minor Pr substitution on the magnetocaloric effect (MCE) of Mn1-x Pr (x) As (x = 0.005, 0.01, 0.015, 0.02) alloys has been investigated. The lattice parameters a, c and unit cell volume V of the alloys Mn1-x Pr (x) As (x = 0.005, 0.01, 0.015, 0.02) increase monotonically with increasing Pr content. The Pr addition has minor effect on tuning the Curie temperature T (c) from 318 K to 321 K for x = 0.005-0.02 and reducing the thermal hysteresis (about 20 K). With increasing the temperature, the critical field induced paramagnetic (PM)-ferromagnetic (FM) transition shifts to higher values. The Pr substitution makes the paramagnetic phase unstable and stabilizes the ferromagnetic phase, which lead to increasing in Curie temperature T (c) of Mn1-x Pr (x) As (x = 0.005, 0.01, 0.015, 0.02) alloys. The absence of the huge magnetic entropy change spike which was calculated by the Maxwell relation is observed in the temperature range where the stepwise magnetic behaviors occur. The Clausius-Clapeyron equation is used to recalculate the of alloys Mn1-x Pr (x) As (x = 0.005, 0.01, 0.015, 0.02) under the conditions of the coexistence of the PM and FM phases. The maximum magnetic entropy change of alloys Mn1-x Pr (x) As (x = 0.005, 0.01, 0.015, 0.02) for a 5 T field change decreases gradually from 30.2 J/kg K to 23.3 J/kg K as Pr increases from 0.005 to 0.02. 关键词 KeyWords Plus:MNAS1-XSBX; MNAS 作者信息 通讯作者地址: Xu, CF (通讯作者) [显示增强组织信息的名称] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin, Guangxi, Peoples R China. 通讯作者地址: Xu, CF (通讯作者) [显示增强组织信息的名称] Guilin Univ Aerosp Technol, Sch Mech Engn, Guilin, Guangxi, Peoples R China. 通讯作者地址: Xu, CF (通讯作者) [显示增强组织信息的名称] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China. 地址: [显示增强组织信息的名称] [ 1 ] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin, Guangxi, Peoples R China [显示增强组织信息的名称] [ 2 ] Guilin Univ Aerosp Technol, Sch Mech Engn, Guilin, Guangxi, Peoples R China [显示增强组织信息的名称] [ 3 ] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China 电子邮件地址:afu007@hotmail.com 基金资助致谢 基金资助机构 授权号 National Basic Research Program of China 2014CB643703 National Natural Science Foundation of China 50261002 50661002 51161005 Guangxi Natural Science Foundation 2015GXNSFAA139249 2016GXNSFGA380001 National Natural Science Funds for Young Scholar of China 51601044 查看基金资助信息 出版商 SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS 类别 / 分类 研究方向:Engineering; Materials Science; Physics Web of Science 类别:Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter 文献信息 文献类型:Article 语种:English 入藏号: WOS:000399709300057 ISSN: 0957-4522 eISSN: 1573-482X 期刊信息 Impact Factor (影响因子): Journal Citation Reports® 其他信息 IDS 号: ES7DH Web of Science 核心合集中的 "引用的参考文献": 17 Web of Science 核心合集中的 "被引频次": 0 |
3楼2017-05-19 12:53:51
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2楼2017-05-19 12:52:02