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The effects of NaOH concentration, mineral additive and initial temperature on hydrogen generation from aluminum water reaction were investigated using gas chromatography, X-ray diffraction detection and scanning electron microscope on the reaction gas and solid product. The results show that NaOH which provides a basic alkaline culture is involved in the reaction process, and the hydrogen purity...
Solidification/stabilization effect of FeSO4 and Ca(OH)2/CaO on chromium contaminated soil were studied by contrast, especially the effect of its reaction interval time and concentration. The change of S/S effect with time was also discussed. Results reveal that the reaction interval time effected on S/S slightly, with the high quality ratio of water to soil. As FeSO4 and Ca(OH)2 was used as the S/S...
This paper discusses the pollution status of urban construction fugitive dust and put forwards the comprehensive prevention measures for urban construction fugitive dust. A complex-type chemical dust depressor with excellent performance is got through many experiments. The basic materials of dust depressor include calcium chloride with 5 wt%, magnesium chloride with 10 wt%, and calcium oxide with...
Calabazas Creek Research, Inc. (CCR) is developing controlled porosity cathodes by sintering tungsten wires to create a cap over a reservoir of barium oxide, calcium oxide, and aluminum oxide. The result is a uniform array of pores for uniform emission and a large supply of barium compound for long life operation. The barium diffusion rate can be controlled by the size of the pores and the thickness...
Summary form only given. Plasma immersion ion implantation (PHI) is an effective approach to enhance the surface properties of various types of biomaterials. In order to enhance the surface bioactivity and corrosion resistance of NiTi shape memory alloy, calcium ions were implanted into NiTi alloys that have been pre-plasma-implanted with oxygen and nitrogen. The results are compared to samples without...
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