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Effects of Ni catalyzer on growth velocity and morphology of SiC nano-fibers XU Xian-feng(徐先锋)1, 2, XIAO Peng(肖 鹏)1, XIONG Xiang(熊 翔)1, HUANG Bai-yun(黄伯云)1 1. State Key Laboratory... velocity of SiC-NFs. With the same electroplating time, the growth velocity of the SiC-NFs first increases and then decreases. At around 4 h, it reaches the maximum growth velocity, and it becomes nearly......
; directions have the fastest growth velocity, so that Mg2Si particles are likely to form octahedron shape. When gradually increasing the Mg content, the distributions of Mg and Si atoms on the solid... from the octahedron shape into various complex structures with a large size. Key words: hypereutectic Al-Si alloys; primary Mg2Si particles; growth pattern; growth velocity 1 Introduction Hypereutectic......
-protection; marine growth prevention system; sea-chest; flow velocity 1 Introduction Seawater supply to a ship is essential for engine cooling and balancing of the ship. Engine cooling efficiency tends... Effects of flow velocity on electrochemical behavior of seachest 5083-H116 Al alloy for ship Seung-Jun LEE, Seong-Jong KIM Division of Marine Engineering, Mokpo Maritime University, Mokpo 530729......
deviation; and n is density of potential nuclei. 2.3 Growth model Once a cell has nucleated, it is assumed to grow with its preferential growth direction. The growth velocity of a growing cell... with concentration C0; mL is the slope of liquidus and C0 is the initial concentration of the alloy; Γ is Gibbs-Thomas coefficient. Then, the growth velocity, v(t), can be calculated using the KGT model......
between static and dynamic fracture toughness of Huanglong limestone, relationship between the growth velocity of crack and dynamic fracture toughness was obtained. The main conclusions are summarized... to the logarithmic expression of loading rate. (3) For Huanglong limestone, when the growth velocity of crack is lower than 100 m/s, the energy release rate slightly decreases with increasing the growth velocity......
vary according to trends that depend on the failure stages [8-12]. Thereinto, the elastic wave velocity is more convenient to measure and highly sensitive to the nucleation and growth of cracks.... [38] TAKEMURA T, ODA M. Changes in crack density and wave velocity in association with crack growth in triaxial tests of Inada granite [J]. Journal of Geophysical Research: Solid Earth, 2005, 110(B5......
(G) and growth velocity(V) of directional solidification resulted in the dominant solidification of twins: the twinned dendrite trunks at constant high Vs curved in the G direction with large angles... with lower values of V(100, 10, and 0.5μm/s) and had a structural coarsening trend. Twin cell growth in the absence of arms occurred at a growth velocity of 10 μm/s. A coherency loss was observed......
according to the expected UAV formation structure and the position, velocity, and attitude information of other UAVs in the azimuth area. This resolves problems wherein nodes are necessarily strongly... information from proximal UAV behavior according to position, velocity, and attitude observations. In the actual engineering environment, it is difficult to obtain accurate dynamic parameters. CHEN et al......
; (3) The average velocity of liquid flow along radial direction on the disk is  ... is the flow rate in centrifugal atomization; m is the viscosity of metallic melts; ρ is melt density; w and R are angular velocity and diameter of rotating disk. Therefore theoretically the film......