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University of Electronic Technology, Guilin 541004, China Received 6 January 2015; accepted 30 August 2015 Abstract: Thick-film thermistor with negative temperature coefficient (NTC), low room-temperature... by a digital multimeter, a Keithley 2400 and an impedance analyzer. The results show that with the Ba0.5Bi0.5Fe0.9Sn0.1O3 content increasing from 0.05 to 0.25, the values of room-temperature......
magnetoresistance(GMR) of 2.7 % is achieved with current in plane measurement. The GMR first increases when Pt seed layer is thickened, reaches a maximum of 3.0 % at 4 nm and then decreases with the further......
measurements of zero-field resistivity(ρ), magnetoresistance(MR)and ac susceptibility(χ)as functions of temperature(T).For the second group,a single insulator-metal transition was characterized......
. The martensitic transformation temperature Tmreduces quasi-linearly with increasing Fe-content. In strikingly contrast with the Fe-free alloys, the magnetization difference( M’) across martensitic transformation increases by three orders of magnitude for Fe-doped alloys. The increased M’ should be ascribed to the reduction of Tm, almost unchanged Curie temperature of austenite and the increased......
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Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics QIU Shen-yu(邱深玉)1, LI Wang(李 旺)2, LIU Yu(刘 宇)2, LIU Gui-hua(刘桂华)2, WU Yi-qiang(吴毅强)3.... Ferroelectricity was observed in all samples at room temperature, but it was greatly depressed by Fe doping. Except at doping level of 1%, room-temperature ferromagnetism was observed in the BaTiO3 ceramics......
observed by optical microscopy (OM) and scanning electron microscopy (SEM). Both room-temperature and high-temperature tensile properties were tested. The results show that the addition of Ta element... TMCs have been studied [13-15]. In order to improve the room-temperature tensile properties and high-temperature properties of titanium alloy, certain strengthening element was considered to add......
, China) Abstract: The high-temperature and room-temperature tensile properties of Ti-24Al-17Nb (mole fraction, %) alloys laser welding joints were investigated, and the microstructure and fracture of the joints were studied. The results indicate that the microstructures of the welds are consisted of β/B2 with columnar crystals, the strength of the joints tensioned transversely at room-temperature......
Trans. Nonferrous Met. Soc. China 26(2016) 2617-2632 Effects of aspect ratio and loading rate on room-temperature mechanical properties of Cu-based bulk metallic glasses An-hui CAI1,2,3, Yong LIU2... and Electronics, Central South University, Changsha 410083, China Received 16 October 2015; accepted 2 May 2016 Abstract: Room-temperature mechanical properties of Cu50Zr40Ti10-xNix (0≤x≤4, mole fraction, %) bulk......
behaviors of Ti-xNb-0.7Ta-2Zr-1.4O (x=22.4, 22.85, 24.5) alloys during room-temperature compression were investigated. The results show that the true stress-strain curve exhibits stress oscillation......
