【摘 要】
：
The influence of the manganese-alloying on the structure and magnetocaloric properties of the Gd5Si2.05Ge1.95 compound was studied by X-ray powder diffraction a
【机 构】
：
Ankara University
论文部分内容阅读
The influence of the manganese-alloying on the structure and magnetocaloric properties of the Gd5Si2.05Ge1.95 compound was studied by X-ray powder diffraction and magnetization measurements.The Gd5Si2.05-xGe1.95-xMn2x(2x=0,0.03 and 0.08)compounds crystallized in the Gd5Si2Ge2-type monoclinic structure.In all X-ray powder diffraction patterns,a minor hexagonal Gd5Si3 phase was observed as a second phase.With increasing Mn content,the unit cell volume increased.For the compounds with x=0,0.03 and 0.08,the first order phase transition was observed.The maximum isothermal magnetic entropy change of the Gd5Si2.05-xGe1.95-xMn2x compound with 2x=0.03 at 275 K was found to be-11.6 J/(kg·K)in an applied field of 5 T.
其他文献
介绍了长清某校区校园内河流水质状况,并对旱季和雨季时校内河流7个点的水质取样调查分析,动态检测了多项重要水质指标,根据现有问题提出了多项具体改进措施,对于大规模景观
目的 分析汶川地震住院伤员的伤情特点及救治,为类似自然灾害所致伤员的救治提供参考.方法 利用V3.0收集录入的四川大学华西医院和德阳市第一和第二人民医院收治的地震伤员资
2009年初全球爆发了新型甲型H1N1流感.而且至今仍在流行.虽然到目前为止该疾病病情温和,但新型甲型H1N1流感病毒传染性强,人群因对这个新型病毒缺乏免疫力而普遍易感,导致疾
A new serve plastic deformation (SPD) including initial forward extrusion and subsequent shearing process (ES) was proposed. The influence of the ES forming on
The electronic properties of sphalerite (110) surface with Zn-vacancy and S-vacancy were calculated by using density-functional theory, and the effects of vacan
On the base of nonlinear liquidus and solidus, an extended model for dendrite growth in bulk undercooled melts was developed under local non-equilibrium conditi
The accuracy of nucleation parameter is a critical factor in the simulation of microstructural evolution during dynamic recrystallization (DRX). Based on the fl
The Ti-35%Nb (mass fraction) foams were prepared by a powder metallurgy method, and the microstructure and the mechanical properties of the foams under monotoni
Extensive testing was carried out to study the effects of rare earth Ce doping on the properties of SnAgCu solder alloys. The addition of 0.03% (mass fraction)
It is economically advantageous to cast wrought aluminum alloys directly into near-net-shape components. The objective of the present work is to take advantage