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   molybdenum ion 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:0.402秒
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molybdenum ion
相关语句
  钼离子
    Influence of Molybdenum Ion Implantation on the Aqueous Corrosion Behavior of Zirconium
    钼离子注入对纯锆耐蚀性的影响
短句来源
    Effect of molybdenum ion implantation on corrosion resistance of zircaloy-4
    钼离子注入对锆-4合金耐腐蚀性的影响
短句来源
    In order to study the effect of molybdenum ion implantation on the aqueous corrosion behavior of zirconium, specimens were implanted by molybdenum ions with a dose range from 1×1016 to 5×1017 ions/cm2 at maximum 160℃, using MEVVA source at an extracted voltage of 40 kV. The valence of the surface layer was analyzed by X-ray photoemission spectroscopy (XPS);
    使用MEVVA源对纯锆表面注入1×1016 ions/cm2至5×1017 ions/cm2剂量的钼离子,研究离子注入后其在水溶液中耐蚀性; 注入时的最高温度为160℃,加速电压为40 kV。
短句来源
    In order to study the effect of molybdenum ion implantation on the aqueous corrosion behavior of zircaloy-4, specimens were implanted by molybdenum ions with a fluence range of 1×1016—1×1017 cm-2. The valence of the surface layer was analyzed by X-ray photoelectron spectroscopy (XPS) and the three-sweep potentiodynamic polarization measurement was employed to evaluate the aqueous corrosion resistance of zirconium in 1 mol·L–1 H2SO4 solution.
    观察钼离子注入对锆-4合金在硫酸水溶液中耐腐蚀性的影响。 使用MEVVA(Metalvaporvacuumarc)源对锆-4合金表面注入1×1016—1×1017cm-2剂量的钼离子,用X射线光电子能谱(XPS)分析其表面元素价态;
短句来源
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  molybdenum ion
In complexes (2-4) the terminal Mo=S bonds of the MoS42- unit become hydroxylated and the molybdenum ion is reduced from the starting MoVI in MoS42- to MoIV in the final product (2-4).
      
Effect of molybdenum ion coordination on acrolein adsorption on α- and β-cobalt molybdate
      
In complexes (2a-2e) the terminal Mo=S bonds of the MoS unit get hydroxylated and the molybdenum ion is reduced from the starting MoVI in MoS to MoIV in the final product.
      
X-ray data of single crystals prepared from EPR-active samples show in both inhibited forms that the arsenic atom interacts with the molybdenum ion through an oxygen atom at the catalytic labile site and that the sulfido ligand is no longer present.
      
The solid-state structure reveals that the molybdenum ion sits within a cleft formed by the biphenyl backbone of the ligands, providing some steric protection.
      
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Invesezigative experiments have been conducted to survey the influence of ion implantation on the superficial texture of annealed fine iron and the performance of its resistance to corrosion. The results of the experiments reveals that,when baron or molybdenum ions are implanted,a thin amorphous layer is formed in the superficial texture of the fine ironand under the layer,a second phase can be obtained through implantation of ions of multiple elements of chromium,cobalt,etc.and the transition...

Invesezigative experiments have been conducted to survey the influence of ion implantation on the superficial texture of annealed fine iron and the performance of its resistance to corrosion. The results of the experiments reveals that,when baron or molybdenum ions are implanted,a thin amorphous layer is formed in the superficial texture of the fine ironand under the layer,a second phase can be obtained through implantation of ions of multiple elements of chromium,cobalt,etc.and the transition phenomenon is apparellt. If silicon is plated with nitrogen ion beam,a thicker emorphous ceramic coat will be applied. Such prry cesses as the said ion implantation can imprcred.erformance of fine iron in resistance to corrosion significantly.The synthetic treatment multi mttrogen ion beed gives the optimal denaturation in the superficial textuxe.

作者对离子注入对退火后的纯铁表层结构及抗蚀性能的影响进行了试验研究。结果表明,注入硼离子或钼离子,可获得表面非晶薄层;铬、钼多元素离子注入,在非晶层下得到第二相,并有较明显的过渡层;经氮离子来混合镀硅,可获得较厚的表面非晶型的陶瓷层;采用上述离子注入工艺,可使纯铁的抗腐蚀性能显著提高,其中氮离子束混合处理有最佳的表面改性效果.

Molybdenum ions extracted from a metal vapor vacuum arc ion source are implanted into Al with various ion flux densities. Molybdenum concentration depth profile in Al is calculated according to ion range profile and sputtering theory. Rutherford back scattering has shown that the molybdenum concentration depth profile in Al is wider than that of theory calculation. It is observed by TEM that compound A1 12 Mo can be formed in the implanted layer. The thickness of alloy...

Molybdenum ions extracted from a metal vapor vacuum arc ion source are implanted into Al with various ion flux densities. Molybdenum concentration depth profile in Al is calculated according to ion range profile and sputtering theory. Rutherford back scattering has shown that the molybdenum concentration depth profile in Al is wider than that of theory calculation. It is observed by TEM that compound A1 12 Mo can be formed in the implanted layer. The thickness of alloy layer is about 650nm by RBS. A model of "honeycomb" has been proposed to explain these experiment results.

利用从金属蒸汽真空弧 (简称 MEVVA)离子源引出的强束流脉冲钼离子对纯铝进行了不同束流密度的离子注入试验。钼离子的加速电压为 4 8k V,剂量为 3× 10 1 7cm- 2 ,平均束流密度为 2 5和 4 7μA· cm- 2 。透射电镜 (TEM)分析证明在注入层内可形成 Al1 2 Mo晶体 ;背散射 (RBS)分析证明 Al1 2 Mo的厚度可达 6 0 0至70 0 nm;结合强束流脉冲注入的特点 ,根据碰撞理论提出了解释钼反常分布的“蜂窝”模型。

In order to study the effect of molybdenum ion implantation on the aqueous corrosion behavior of zirconium, specimens were implanted by molybdenum ions with a dose range from 1×1016 to 5×1017 ions/cm2 at maximum 160℃, using MEVVA source at an extracted voltage of 40 kV. The valence of the surface layer was analyzed by X-ray photoemission spectroscopy (XPS); Three-sweep potentiodynamic polarization measurement was employed to valuate the aqueous corrosion resistance of zirconium in a 0.5 mol/L...

In order to study the effect of molybdenum ion implantation on the aqueous corrosion behavior of zirconium, specimens were implanted by molybdenum ions with a dose range from 1×1016 to 5×1017 ions/cm2 at maximum 160℃, using MEVVA source at an extracted voltage of 40 kV. The valence of the surface layer was analyzed by X-ray photoemission spectroscopy (XPS); Three-sweep potentiodynamic polarization measurement was employed to valuate the aqueous corrosion resistance of zirconium in a 0.5 mol/L H2SO4 solution. Scanning electron microscopy (SEM) was used for the three-sweep potentiodynamic polarized samples. It was found that the aqueous corrosion resistance of zirconium implanted with molybdenum declined with the raising dose. The greater is the implantation dose, the bigger is the decline. And the natural corrosion potential of the implanted zirconium became more positive than as-received zirconium. Finally, the mechanism of the poor corrosion resistance of the molybdenum-implanted zirconium is discussed.

使用MEVVA源对纯锆表面注入1×1016 ions/cm2至5×1017 ions/cm2剂量的钼离子,研究离子注入后其在水溶液中耐蚀性;注入时的最高温度为160℃,加速电压为40 kV。用X光电子谱(XPS)分析表面元素价态;3次极化扫描评价注入样品在0.5 mol/L硫酸水溶液中的耐蚀性,并对3次极化后的样品进行扫描电镜(SEM)观察。实验表明:随着钼离子注入剂量的增大,注入样品的耐蚀性反而下降。剂量越大,耐蚀性下降越多。注入样品的自然腐蚀电位与未注入纯锆相比发生了正移,总的趋势是随着剂量的加大,自然腐蚀电位越正。最后讨论了钼离子注入纯锆后耐蚀性下降的原因。

 
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