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为:黄红壤>黄褐土>砂姜黑土,B3态为:砂姜黑土>黄褐土>黄红壤;两种模拟条件下,3种土壤中的外源镧有进入残渣态的趋势,但并不明显,且不同土壤的各形态对残渣态的贡献不同. 关键词:淹水土壤; 镧; 形态分布; 稀土; submerging soil; lanthanum; fraction distribution; rare earths; [全文内容正在添加中] ......
growth process was analyzed. The effects of contact angle, area fraction, substrate temperature and relative humidity on droplets growth were studied. The results show that in the early stage of frost..., the temperature difference of continuum region layer decreases, which leads to the slow growth of droplets. The area fraction S has little effect on the droplets growth. When S=0.04, the related thermal......
Microstructure, mechanical and tribological properties of TiAl-based composites reinforced with high volume fraction of nearly network Ti2AlC particulatesJun Cheng,Shengyu Zhu,Yuan Yu,Jun Yang,Weimin LiuState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences摘 要:TiAl-based composites reinforced......
that the plateau can be strongly affected by doping concentration, strained-Si layer thickness and mass fraction of Ge in the SiGe layer. The model has been implemented in the software for strained silicon... layer thickness; mass fraction of Ge......
of the precipitates gradually changes into thin plates. The size of the precipitation increases at the beginning of aging process and goes to a stable value at last. The volume fraction of the precipitation increases at the beginning and then decreases, at last increases in a smaller rate. Key words: aluminum alloys; small angle X-ray scattering; precipitation; volume fraction Al-Cu-Mg-Ag铝合金是新型可热处理强化的损伤容限型合金......
specimen is roundish compare with that formed on the plate specimen. The hydrogen uptake of specimen after breaking away increases but hydrogen uptake fraction decreases. So the formation of cellular bulge morphology is related to the unabsorbed hydrogen diffusing out through oxide film. Key words: Zr-Nb-Fe alloy; LiOH solution; cellular bulge; hydrogen uptake fraction Foundation item: Project......
microscope (SEM) and universal testing machine. When the content of Al-3P is 0.6 wt.%, the area fraction of primary α(Al) in the Al-Si alloy increases more compared to the unmodified alloy... in area fraction of primary α(Al) phase in the Al-10Si alloy increases first and then decreases. And when 0.6 wt.% Al-3P is added, the increase in area fraction of primary α(Al) phase is the largest......
(Ⅵ)-amended soil was inoculated with Cr(Ⅵ)-reducing strain, Bacillus sp. XW-4 and incubated at 28 ℃ in an incubator. Cr(Ⅵ) reduction, available Cr and Cr fraction in soils were studied. The results show... words: Bacillus sp.; Cr(Ⅵ) reduction; available chromium; Cr fraction ......
+能稳定地吸附于石墨烯表面的H2位置,Na+与石墨烯间以弱离子键结合,因此,随着石墨烯质量分数增加,石墨烯对Na+的吸附作用使土样内部的NaCl浓度有所上升,这也可能在一定程度上促进最终膨胀变形率进一步减小. 图3 石墨烯质量分数对混合物膨胀变形的影响 Fig. 3 Effect of graphene mass fraction on swelling strain of mixtures......
Superplastic behavior of an ultrafine-grained Mg-13Zn-1.55Y alloy with a high volume fraction of icosahedral phases prepared by high-ratio differential speed rollingT.Y.Kwak1,2,W.J.Kim21. Rare Metal...) Mg-13Zn-1.55 Y alloy(ZW132) with a high volume fraction(7.4%) of icosahedral phase(I-phase, Mg3Zn6Y) particles was prepared by applying high-ratio differential speed rolling(HRDSR) on the cast microstructure......
