共搜索到35593条信息,每页显示10条信息,共3560页。用时:0小时0分0秒390毫秒
behaviors of Ti-45Al-2Fe-2Mo-1Cr intermetallics with different oxygen contents were studied under the condition of 950 °C, 100 h in air, and the oxidation kinetic parameters were also evaluated... to improve the oxidation resistance by controlling the oxygen content. Key words: TiAl intermetallics; oxygen content; isothermal oxidation; oxidation kinetic 1 Introduction TiAl intermetallics......
法炼镁化学反应动力学的影响规律 Fig. 5 Effect of silicon stoichiometry on chemical kinetic mechanism (30 min) 虽然公式(1),(2)和(3)分别给出了配硅比为1.0,1.1和1.2条件下的化学反应动力学方程,但使用起来比较繁琐,且不能覆盖配硅比1.0~1.2的全部数据,给后续动力学模型与传热模型的结合带来困难...影响规律 Fig. 9 Effect of hydration activity of calcined dolomite on chemical kinetic mechanism (30 min) 由图9可知,在相同还原温度条件下,还原率随着煅白水化活性度的降低而呈现下降趋势,煅白水化活性度对还原率的影响比配硅比大.在1200 ℃下反应30 min后,当煅白水化活性度由33%降至......
Hot deformation mechanism and microstructure evolution of TC11 titanium alloy in b field CHEN Hui-qin(陈慧琴)1, 2, CAO Chun-xiao(曹春晓)1, GUO Ling(郭 灵)1, LIN Hai(林 海)1 1. Beijing Institute... processing power dissipation efficiency maps were established. EBSD technique was used for testing grain boundary characteristic of deformation structures. The results indicate that hot deformation mechanism......
, the reduction kinetic mechanism function and isothermal kinetic equation of fluoroapatite in Ca10(PO4)6F2-SiO2-Fe2O3-C system were investigated. The results show that increasing the amounts of silica...磷灰石还原反应机理函数及反应速率常数 Table 2 Mechanism function and apparent reaction rates of fluorapatite reduction 对比表3中两种机理函数的相关系数可知,氟磷灰石在Ca10(PO4)6F2-SiO2-Fe2O3-C体系下还原反应的最佳动力学机理函数为A1/3:1/3(1-α)[-ln(1-α)]-2......
. The wear mechanisms of titanium and its alloys were oxidative wear, abrasive wear and delamination, with abrasive wear as the most common mechanism of the ion implantation layers. Key words: titanium alloy; ion implantation; fretting; wear mechanism 1 Introduction Titanium and its alloys, e.g., Ti6Al4V, are widely used as implant materials in clinical applications such as components for artificial......
of bacteria, culture time, pH value, biomass concentration, temperature, adsorption time and initial concentration of metal ions on the biosorption of Pb2+ were determined, and the adsorption mechanism..., the nonliving bacteria cultured after 12 h with the biomass of 0.5 g/L, and temperature of 30 ℃. The kinetic study of the adsorption shows that the adsorption process of Pb2+ is rapid, and finishes in 90 min......
Adsorption of sulfate in aqueous solutions by organo-nano-clay: Adsorption equilibrium and kinetic studiesCHEN Wei(陈卫)1, LIU Hai-cheng(刘海成)1, 2(1. College of Environment, Hohai University, Nanjing... isotherm model is fit to explain the sulfate adsorption onto organo-nano-clay. The maximum adsorption capacity is found to be 38.02 mg/g at 40 °C. The kinetic data fit well the pseudo-second-order......
......
; Abstract: The electrochemical mechanism of anode oxidation of HCHO in electroless copper plating solution with N, N, N′, N′- tetrakis(2-hydroxypropyl...; electrochemical mechanism  ......
......