期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
镁合金钼酸盐/磷酸盐复合转化膜的制备 被引量:7
1
作者 朱婧 雍止一 +2 位作者 邱晨 郝瑞 刘娅莉 《电镀与环保》 CAS CSCD 2008年第1期23-26,共4页
研究了镁合金钼酸盐/磷酸盐复合转化膜,分析了影响复合转化膜性能的因素。结果表明:当钼酸盐/磷酸盐复合转化液pH值为5,n(MoO24-)/n(H2PO-4)为1/2时,镁合金钼酸盐/磷酸盐复合转化膜腐蚀电流最低,耐蚀性能较好,微观表面呈均匀"蜂窝&... 研究了镁合金钼酸盐/磷酸盐复合转化膜,分析了影响复合转化膜性能的因素。结果表明:当钼酸盐/磷酸盐复合转化液pH值为5,n(MoO24-)/n(H2PO-4)为1/2时,镁合金钼酸盐/磷酸盐复合转化膜腐蚀电流最低,耐蚀性能较好,微观表面呈均匀"蜂窝"状,具有最佳防腐蚀性能;并且当Ca2+和Mn2+同时存在时,膜层的极化电阻最大。 展开更多
关键词 镁合金 钼酸盐/磷酸盐 转化膜
下载PDF
Hydrothermal Synthesis and Structure of a Novel Molybdenum Phosphate: Na_4(H_3O) [Na(HPO_4)_2(PO_4)_4Mo_(18)O_(49)]·16H_2O
2
作者 林郑忠 张汉辉 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2001年第6期447-450,共4页
The title compound Na5H37P6Mo18O90 1 (Mr=1658) was synthesized under hydrothermal condition and its crystal structure was determined by X-ray diffraction. It crystallized in the monoclinic system, space group P21 with... The title compound Na5H37P6Mo18O90 1 (Mr=1658) was synthesized under hydrothermal condition and its crystal structure was determined by X-ray diffraction. It crystallized in the monoclinic system, space group P21 with a =14.957(1), b =16.535(1), c = 16.159(1)?β=108.586(2)°, V=3787.85?, Dc =3.040g/cm3, Z=2,μ(MoK)=3.17mm-1, F(000)=3242. The final R and wR are 0.0500 and 0.1535 for 6643 observable reflections with I≥2?I), respectively. The result of structure analysis indicates that [Na(HPO4)2(PO4)4-Mo18 O49]5-anions 2 in 1 has the symmetry of C2V, in which each MoVIO6 octahedron is connected to adjacent PO4 tetrahedra through corner-sharing and to adjacent octahedra through edge-sharing or corner-sharing. 展开更多
关键词 HYDROTHERMAL molybdenum phosphate crystal structure
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部