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. As we know, the growth rate is normally approximate 1 μm/d, so the mass fraction of particles (＞45 μm) presents sinusoidal variation in precipitation. In the last a few precipitation steps, the seed..., they have same driving force for seeded precipitation. So, the transformation rate of seed surface area becomes slower, and time to nucleation explosion gets longer in precipitation with high solid......
precipitation method to improve its rate capability. The samples were characterized by X-ray diffractometry (XRD), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), charge-discharge..., in this work, accordingly, LiNi1/3Co1/3Mn1/3O2 was coated by uniform and thin AlF3 layer with chemistry precipitation method, in order to ameliorate its rate capability. Electrochemical impedance......
Study on Quick Precipitation of Neodymium Fluoride李鹏飞,王亚军,郭锋摘 要:In view of the problems of slower precipitation rate and lower recovery rate... amount, reaction temperature, rare earth concentrations and macromolecular precipitating aid on the recovery rate of rare earth and its precipitation rate were investigated. The particulate size......
Effect of solidification rate on MC-type carbide morphology in single crystal Ni-base superalloy AM3 YU Zhu-huan (余竹焕)1, 2 , LIU Lin(刘 林)1, ZHAO Xin-bao(赵新宝)1, ZHANG Wei-guo(张卫国)1, ZHANG Jun(张 军...’an University of Science and Technology, Xi’an 710054, China Received 11 November 2009; accepted 21 March 2010 Abstract: In order to study the effect of the withdrawing rate on carbide morphology, MC-type......
engineering ,Central South University, Changsha 410083, China) Abstract: The effects of L-leucine on the seeded precipitation rate of sodium aluminate solution, the particle size and morphology...-leucine; sodium aluminate solution; seeded precipitation; precipitation rate ......
, and different chemical reactions are of different time-delay. In the goethite iron precipitation process, the oxidation rate of ferrous ions is mainly affected by dissolved oxygen concentration, the concentration... J. Cent. South Univ. (2019) 26: 63-74 DOI: https://doi.org/10.1007/s11771-019-3982-1 Modeling of goethite iron precipitation process based on time-delay fuzzy gray cognitive network CHEN Ning(陈宁......
: NiAl-28Cr-5.5Mo-0.5Hf; processing; microstructure refinement; precipitation strengthening; high solidification rate 1 Introduction Intermetallic alloys based on nickel aluminium (NiAl) are subjects... improve the compressive properties of NiAl–28Cr-5.5Mo-0.5Hf alloys. The microstructural refinement and the stronger precipitation strengthening mechanisms are responsible to the improvement......
precipitation efficiency and mass ratio of seeds[1-3]. The speed of the carbonation precipitation of sodium aluminate solution is fast and the carbonation rate is high, but it’s a complex technological process... cakes at 100 ℃, it was weighted (to calculate the precipitation rate) and determined to be aluminum hydroxide. 2.3.3 Multi ion membrane electrolysis and precipitation As mentioned above, after......
; precipitation rate; complex forming rate 1 Introduction In non ferrous metallurgy, hydroxide precipitate method is commonly used to recover valuable metals and purify the leaching solution usually [1-7... the complexing agent, while the solid line represents main reaction and the dotted line represents side reaction. 3 Theoretical derivation of formula The precipitation rate (G) of metal cations is defined......
