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Confined cathode micro-arc oxidation (CCMAO) has been investigated in Na2SiO3-KOH solution with industrial pure aluminum as substrate materials. The effects of the electrode distance (ED) on working current, potential distribution, arcing voltage and so on have been focused on. The energy efficiency as a function of ED has also been evaluated. The results show the working current decreases with increasing ED for the same exposure area of confined cathode and anode. However, the working current increases with increasing ED with only the cathode confined. It is attributed to different electrical field on the anode surface. With increasing ED, the electrical field beneath the confined cathode decreases while that far from the cathode increases. This leads to a different total working current. The arcing voltage increases with increasing ED while the effective voltage on anode surface nearly keeps constant. The thickness of the ceramic coating produced at a small ED is much higher than that at a larger ED. The energy consumption per unit volume of oxides by CCMAO indicates that smaller ED leads to higher energy efficiency.
[1] Yerokhin A L,Nie X,Leyland A, Matthews A,Dowey S J 1999 Surf. Coat. Technol. 122 73
[2] Chen F,Zhou H,Yao B, Qin Z, Zhang Q F 2007 Surf. Coat. Technol. 201 4905
[3] Barik R C,Wharton J A,Wood R J K, Stokes K R,Jones R L 2005 Surf. Coat. Technol. 199 158
[4] Jiang B L, Zhang X F 2005 Rare Metal Materials and Engineering 34 393 (in Chinese) [蒋百灵、张先锋 2005 稀有金属材料与工程 34 393]
[5] Yerokhin A L,Shatrov A,Samsonov V,Shashkov P,Pilkington A,Leyland A,Matthews A 2005 Surf. Coat. Technol. 199 150
[6] Wang Y,Wang M L,Zhou F, Ding H Y,Dai Z D 2007 Chin. J. Nonferr. Met. 17 1266 (in Chinese) [王 远、 王美玲、周 飞、丁红燕、戴振东 2007 中国有色金属学报 17 1266]
[7] Ryu H S,Song W H,Hong S H 2005 Curr. Appl. Phys. 5 512
[8] Curran J A,Clyne T W 2005 Surf. Coat. Technol. 199 177
[9] Han Y,Yan Y Y,Lu C G,Zhang Y M, Xu K W 2009 J. Biomed. Mater. Res. 88A 117
[10] Li Y,Lee I S,Cui F Z,Choi S H 2008 Biomaterials 29 2025
[11] Wu H H,Wang J B,Long B Y,Lü X Y, Long B H, Jin Z S, Bai Y Z, Bi D M 2005 Acta Phys. Sin. 54 5743 (in Chinese) [吴汉华、汪剑波、龙北玉、吕宪义、龙北红、金曾孙、白亦真、毕冬梅 2005 54 5743]
[12] Xue W B, Wang C, Li Y L, Deng Z W, Chen R Y, Zhang T H 2002 Mater. Lett. 56 737
[13] Gu W C,Lü G H,Chen H,Chen G L,Feng W R,Zhang G L,Yang S Z 2007 Acta Phys. Sin. 56 2337 (in Chinese) [顾伟超、吕国华、陈 睆、陈光量、冯文然、张谷令、杨思泽 2007 56 2337]
[14] Zozulin A J,Bartak D E 1994 Met. Finish. 92 39
[15] Wang Y M,Jiang B L,Lei T Q 2004 Mater. Lett. 58 1907
[16] Butyagin P I,Khokhryakov Y V,Mamaev A I 2003 Mater. Lett. 57 1748
[17] Yerokhin A L,Snizhko L O,Gurevina N L,Leyland A,Pilkington A,Matthews A 2003 J. phys. D: Appl. Phys. 36 2110
[18] Wang L S,Pan C X,Cai Q Z,Wei B K 2007 Acta Phys. Sin. 56 5341(in Chinese) [王立世、潘春旭、蔡启舟、魏伯康 2007 56 5341 ]
[19] Kalkanci H,Kurnaz S C 2008 Surf. Coat. Technol. 203 15
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[1] Yerokhin A L,Nie X,Leyland A, Matthews A,Dowey S J 1999 Surf. Coat. Technol. 122 73
[2] Chen F,Zhou H,Yao B, Qin Z, Zhang Q F 2007 Surf. Coat. Technol. 201 4905
[3] Barik R C,Wharton J A,Wood R J K, Stokes K R,Jones R L 2005 Surf. Coat. Technol. 199 158
[4] Jiang B L, Zhang X F 2005 Rare Metal Materials and Engineering 34 393 (in Chinese) [蒋百灵、张先锋 2005 稀有金属材料与工程 34 393]
[5] Yerokhin A L,Shatrov A,Samsonov V,Shashkov P,Pilkington A,Leyland A,Matthews A 2005 Surf. Coat. Technol. 199 150
[6] Wang Y,Wang M L,Zhou F, Ding H Y,Dai Z D 2007 Chin. J. Nonferr. Met. 17 1266 (in Chinese) [王 远、 王美玲、周 飞、丁红燕、戴振东 2007 中国有色金属学报 17 1266]
[7] Ryu H S,Song W H,Hong S H 2005 Curr. Appl. Phys. 5 512
[8] Curran J A,Clyne T W 2005 Surf. Coat. Technol. 199 177
[9] Han Y,Yan Y Y,Lu C G,Zhang Y M, Xu K W 2009 J. Biomed. Mater. Res. 88A 117
[10] Li Y,Lee I S,Cui F Z,Choi S H 2008 Biomaterials 29 2025
[11] Wu H H,Wang J B,Long B Y,Lü X Y, Long B H, Jin Z S, Bai Y Z, Bi D M 2005 Acta Phys. Sin. 54 5743 (in Chinese) [吴汉华、汪剑波、龙北玉、吕宪义、龙北红、金曾孙、白亦真、毕冬梅 2005 54 5743]
[12] Xue W B, Wang C, Li Y L, Deng Z W, Chen R Y, Zhang T H 2002 Mater. Lett. 56 737
[13] Gu W C,Lü G H,Chen H,Chen G L,Feng W R,Zhang G L,Yang S Z 2007 Acta Phys. Sin. 56 2337 (in Chinese) [顾伟超、吕国华、陈 睆、陈光量、冯文然、张谷令、杨思泽 2007 56 2337]
[14] Zozulin A J,Bartak D E 1994 Met. Finish. 92 39
[15] Wang Y M,Jiang B L,Lei T Q 2004 Mater. Lett. 58 1907
[16] Butyagin P I,Khokhryakov Y V,Mamaev A I 2003 Mater. Lett. 57 1748
[17] Yerokhin A L,Snizhko L O,Gurevina N L,Leyland A,Pilkington A,Matthews A 2003 J. phys. D: Appl. Phys. 36 2110
[18] Wang L S,Pan C X,Cai Q Z,Wei B K 2007 Acta Phys. Sin. 56 5341(in Chinese) [王立世、潘春旭、蔡启舟、魏伯康 2007 56 5341 ]
[19] Kalkanci H,Kurnaz S C 2008 Surf. Coat. Technol. 203 15
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