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Microstructure,mechanical and corrosion properties of Mg-Zn-Nd alloy with different accumulative area reduction after room-temperature drawingMing Gao1,2,Zheng Ma2,Iniobong P.Etim1,2,Li-Li Tan2,Ke... at investigating the influence of micros true tural evolution on mechanical and corrosion properties of Mg-2 Zn-0.5 Nd alloy(ZN20) during room-temperature drawing.The decreases in the crosssectional area of ZN20......
Temperature stability of magnetoresistance (MR) and MR enhancement in La1-x(Sr1-yAgy)x MnO3 systemYong-Gang Tang1,2,Gui-Ying Wang1,2,Guo-Qing Yan1,2,Qi-Xiang Song1,2,Ming-Yu Zhang1,2,Zhen-Sheng...="ChDivSummary">Polycrystalline samples of La12x(Sr12yAgy)x MnO3 (y = 0.0, 0.2, 0.4, 0.6, 1.0) were prepared by the solid-state reaction method. The temperature stability of magnetoresistance and magnetoresistance......
Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: The influences of B content on the microstructure and tensile properties of cast Ti3Al alloy at room temperature were investigated..., the addition of B reduces the room-temperature strength and elongation of Ti3Al alloy. Key words: cast Ti3Al alloy; element B; grain refining; microstructure; room-temperature tensile property Ti3Al基合金是具......
: titanium matrix composite; hot-rolling; deformation amount; microstructure; room-temperature mechanical properties 非连续增强的钛基复合材料具有较好的高温力学性能及抗蠕变性能,已得到广泛研究[1-3].采用原位自生的方法可以获得非连续增强的钛基复合材料,并且在采用原位自生方法获得的材料中,增强体...材料的室温应力-应变曲线 Fig.2 Stress-strain curves of titanium matrix composites with different deformation amounts at room temperature 表1 不同变形量下复合材料的室温拉伸性能 Table 1 Mechanical properties......
; colossall magnetoresistance (CMR) effect; transport mechanism; [全文内容正在添加中] ......
Influence of Pr Content on the Sructure and Giant Magnetoresistance of Prx(Co40Ag60)100-x Granular Films成钢摘 要:Prx(Co40Ag60)100-x (x=0, 0.5, 1, 1.5, 2, 3) granular films have been prepared by DC magneto controlled sputtering method. The XRD data indicated that Pr element favors the (111) plane preferential orientation. Magnetic measurements indicate......
="ChDivSummary">The effects of annealing on microstructure,magnetoresistance,and hardness of an in situ Cu-Nb microcomposite wire have been investigated.Neither changes in microstructure nor hardness were found until 500 ℃.Particularly,microstructural change within the Nb films was observed in the annealed samples.The room-temperature magnetoresistivity was almost negligible,while magnetoresistivity at-196......
perovskite manganites were prepared. In these samples, the transition from high temperature paramagnetic insulator to low temperature ferromagnetic metal as well as the low field magnetoresistance (LFMR.... The results suggest that the high temperature LFMR effect and the applicable colossal magnetoresistance (CMR) materials could be obtained by controlling the microstructures of this class of perovskite......
) composites have been investigated. It was found that the inclusion of MZF phase reduces magnetization and ferromagnetic-paramagnetic transition temperature (Tc) of the composites. With increasing the content of the dopants, the high-temperature magnetoresistance (MR) decreases, whereas low-temperature MR increases and reaches 42% at 150 K and x=0.1. However, for the LSMO/BaM composites, magnetization......
, depressed the particles growth. The resistivity of system increased rapidly and the metal-insulator transition temperature (TIM) and room temperature magnetoresistance decreased as the aluminum... of powder particles size and shape. Key words:magnetoresistance; metal-insulator transition; exchange interactions; transport property; rare earths; [全文内容正在添加中] ......
