Porous films on surface of titanium prepared by low voltage micro arc oxidation
Porous films on surface of titanium prepared by low voltage micro arc oxidation
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低压微弧氧化制备钛表面多孔薄膜
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
J. Z. Zhang
中科院分区：
文献类型：
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作者：
T. Hou;J. Z. Zhang
采用微弧氧化法（MAO）在电压为200 V的Na3PO4电解溶液中制备了多孔TiO2薄膜。使用了3种不同浓度的Na3PO4电解质，分别为10、15和20 g L−1。氧化时间为5 ~ 15 min。采用扫描电子显微镜、x射线能谱仪和x射线衍射对氧化膜进行了表征。扫描电镜分析表明，氧化膜上存在大量孔径在0.5 ~ 2.5 μm之间的孔。氧化膜表面的磷浓度在4.73 ~ 5.73%之间。所有膜中均检测到锐钛矿型TiO2相，未检测到金红石相。磷酸钛相只存在于浓度为20 g L−1的Na3PO4电解质制备的氧化膜中。实验结果表明，低压MAO法是制备含高浓度磷的多孔TiO2膜的有效方法。
Porous TiO2 films were prepared by using micro arc oxidation (MAO) in an electrolytic solution of Na3PO4 with a voltage of 200 V. Three different concentrations of Na3PO4 electrolyte were used, i.e. 10, 15 and 20 g L−1. The oxidation time ranged from 5 to 15 min. The oxide films were characterised by scanning electron microscopy, energy dispersive X-ray spectrometer and X-ray diffraction. Scanning electron microscopy analysis shows that the oxide films had numerous pores with dimensions between 0·5 and 2·5 μm. The phosphorous concentrations on the surfaces of the oxide films were found to be between 4·73 and 5·73%. The anatase TiO2 phase was determined in all the films, and no rutile phase was detected. The titanium phosphate phase was only found in the oxide films prepared with 20 g L−1 of concentration of Na3PO4 electrolyte. The experimental results suggest that the low voltage MAO method is an effective way to prepare porous TiO2 film containing a high concentration of phosphorous.
影响因子：
56.9
作者：
T. L. Macdonald;W. Humphreys;R. B. Martin
通讯作者：
T. L. Macdonald;W. Humphreys;R. B. Martin