<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">

鋁在硫酸—草酸混合酸中的陽極氧化作用

The Actions of H2SO4 and H2C2O4 to Anodizing of Aluminium in Their Mixtures

  • 摘要: 研究了在硫酸加草酸混臺溶液中鋁陽極氧化膜的生長規律。發現草酸中加入少量硫酸的混合酸中恒電流密度陽極氧化時對應的電壓時間關系曲線有雙峰。隨著硫酸濃度的增加,第二峰向第一峰靠近且持續時間縮短。提出了孔中存在硫酸和草酸競爭吸附的機制,解釋了不同草酸加入量對陽極氧化曲線,膜生長速度、膜的硬度和耐磨性的影響程度基本相同的實驗現象和雙蜂出現的原因。

     

    Abstract: The growth mechanism of anodic films in the mixture of sulphuric and oxalic acids were studied. It was found that double peaks appeared in voltage-time transits during anodizing at constant current density in exalic acid with small addition of sulphuric acid. With increase of sulphuric acid concentration, the second peak gets closer to the first continuation period shortens. An adsorption competition mechanism was proposed to explain the effect of the amount of ox-alic concentration on the voltage-lime transits, the film growth rate, the hard-ness and abrasion resistance of the film. The mechanism can also explain the reason lor the appearance of the double peaks.

     

/

返回文章
返回
<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">
259luxu-164