臺灣博碩士論文加值系統

本研究主要是使用鹽霧試驗來，測試形成多孔質氧化鋁的試片的抗腐蝕性。實驗使用三組濃度1Vol%、5 Vol%和10 Vol%的磷酸(Phosphoricacid)溶液當作陽極處理的電解液，首先將裁切好的鋁試片分別經過丙酮、酒精、水在超音波震盪機震盪10分鐘後，再把試片置於陽極，白金片置於陰極，用四組電壓110V、130V、150V和170V 進行30分鐘的陽極處理，再經由0.5M NaOH移除表面不規則的氧化膜，最後進行第二次的陽極處理法4小時，表面會生成一層緻密的六角形蜂巢結構的氧化膜，總共12組試片。再將12組試片做SEM、高組計和耐電壓測試儀測驗，最後再做鹽霧試驗找出多少電壓和濃度的磷酸溶液的試片有最好抗腐蝕性。結果是5Vol%磷酸的150V和170V的試片，10Vol%磷酸的150V的試片的抗腐蝕性最好。

This study is the use of salt spray test, the test form a porous alumina specimen corrosion resistance. Experiments using three sets of concentration 1Vol%, 5 Vol% and 10 Vol% phosphoric acid (Phosphoricacid) as anodizing electrolyte solution, first cut good aluminum specimens, respectively, after acetone, alcohol and water in the ultrasonic vibration machine after 10 minutes, the shock, then the specimen is placed an anode, a cathode placed on platinum sheet, with four groups of voltage 110V, 130V, 150V and 170V for 30 minutes, anodized, 0.5M NaOH and then through the oxide film to remove surface irregularities Finally the second anodic treatment for 4 hours the surface will generate a hexagonal honeycomb structure of dense oxide film, a total of 12 groups of test pieces. 12 groups of test pieces and then do SEM, high group count and voltage resistance tester tests, and finally do find out how much salt spray test voltage and the concentration of phosphoric acid solution specimen has the best corrosion resistance. The result is 5Vol% phosphoric acid test piece 150V and 170V, 10Vol% phosphoric acid test strip 150V best corrosion resistance

目錄
摘要 I
ABSTRACT II
誌謝 III
目錄 IV
圖目錄 VI
第一章 前言 1
第二章 理論與文獻回顧 2
2.1 陽極氧化鋁膜簡介 2
2.2 陽極氧化鋁所形成的化學反應 5
2.3 多孔性的氧化鋁膜形成機制 7
2.4 改善陽極氧化鋁膜規則性 9
2.5陽極氧化鋁形成的電壓與電流關係 11
2.5.1陽極處理電壓 11
2.5.2電解液濃度之影響 12
2.5.3陽極處理電壓與電流對時間之關係 13
2.5.4溫度對電流密度之影響 15
第三章 實驗方法 17
3.1實驗步驟 17
3.2實驗設備 18
3.3實驗藥品 22
3.4基材準備 23
3.5電化學拋光 23
3.6陽極處理法 23
3.7移除多孔質氧化鋁薄膜 24
第四章 結果與討論 24
4.1概敘 24
4.2顯微結構分析 24
4.3試片的孔徑比較 38
4.4電阻的分析 43
4.5崩潰電壓的比較 48
4.6鹽霧測試的照片分析 52

4.7第2次耐電壓測試分析 66
4.8膜厚比較 70
第五章 結論 87
參考文獻 88

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