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+ electrode at room temperature. 3 Results and discussion 3.1 Morphology analysis Fig.1 shows the particle morphologies of modified LiMn2O4 and CMS powders using scanning electron microscope... temperature. 3) The capacity retention ratio increases with the increase of rest time after discharge at high current rate. The capacity retention ratios of battery charged at 1C and discharged at 15C......
were measured on a vibrating sample magnetometer (VSM, BHV-55) at room temperature. 3 Results and discussion The phases of the samples ZF, AF18, AF34 were determined by XRD with the patterns shown... magnetic field can synchronously influence both the nucleation and the parallel growth of particles, while the ex situ applied field only assembles the particles into chain-like microstructures. 3......
of states (DOSs) of BaTiO3 nanowires(NWs) with diameter d=2.0 nm(Fermi energy is set to zero) 3 Results and discussion Fig.3 shows the longitudinal z-axis FE spontaneous polarization as a function... calculation. 2) The calculated results show the spontaneous polarization in the BaTiO3 NWs with 2.0 nm in diameter is 1.18 times higher than that of the bulk counterpart. 3) The physical mechanisms......
angle is shown in Fig.3. Fig.3 Measurement of taper angle(θ) (a) and picture of electrode using FE-SEM (b) 3 Results and discussion 3.1 Electrical characteristics Fig.4 shows the discharge... and microhole machining [J]. Journal of Korean Society of Precision Engineering, 1998, 15: 1075-1079. [3] LEE B U, YI S M, KIM B H, CHU C N. Fabrication of 3D micro structure using micro electrical......
of Mechanical Engineering, Nagaoka University of Technology, Niigata, Japan; 2. Department of Precision Engineering, The University of Tokyo, Tokyo, Japan; 3. Department of Industrial Information, Tsukuba... (Ie=4 A; te=2 μs; to=32 μs) 3 Machining properties of ZrO2-20%Al2O3 ceramics To clarify the effects of the thermal affected area on the EDMed surface, the mechanical strength of WEDMed......
) and transmission electron microscopy (TEM) were used for the examination of the morphology and microstructures of the powder, the compact and the deformed specimens. 3 Results 3.1 Characteristics of Ti-Al... by elemental powder metallurgy [J]. J Mater Sci Technol, 1999, 15: 527-530. [3] HABEL U, McTIERNAN B J. HIP temperature and properties of a gas-atomized γ-titanium aluminide alloy [J]. Intermetallics......
of A. ferrooxidans were incubated in 250 mL Erlenmeyer flasks each containing 100 mL of the medium and 3% (volume fraction) inoculum, on a rotary shaker at 170 r/min at 30℃. The initial pH of the cultures...). The ferrous ion concen- tration was ascertained by a volumetric method by titration with potassium dichromate. The pH of the supernatant at room temperature was also measured with a pH meter (PHSJ-4A). 3......
apparatus for measuring corrosion potential and impedance 3 Results and discussion Fig.2 shows the variation of corrosion potentials with immersion time for various cover thicknesses in the case of W/C..., 109: 147-1614. [2] OZAKI S, SUGATA N. Sixty-years-old concrete in marine environment [J]. ACI, 1983, 109: 587-597. [3] SAGUESA A. Corrosion measurement of reinforcing steel in concrete exposed......
Peng-xun(闫鹏勋)3 1. School of Science, Lanzhou University of Technology, Lanzhou 730050, China; 2. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology, Lanzhou 730050, China; 3. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China Received 14 May 2006; accepted 22 September 2006 ......
5-10 μm in ZK60 alloy with neodymium. So the refined grains improve both the tensile strength and the elongation of alloys at room temperature. 3) The solid solution of neodymium in the α(Mg) matrix... and magnesium alloy [M]. Ohio: Metal Park, 1999: 1-130. [2] LI Wen-xian. Magnesium and magnesium alloy [M]. Changsha: Central South University Press, 2005: 338-380. (in Chinese) [3] CAHN R W......
