纳米SiO2复合对铝合金表面微弧氧化层生长动力学的影响
通过在微弧氧化电解液中添加纳米SiO2颗粒配制纳米电解液,在铝合金表面制备了纳米复合微弧氧化层,考察了恒电压和恒电流两种模式下纳米SiO2复合对微弧氧化层生长动力学的影响。结果表明,恒电压模式下,纳米SiO2复合大幅度提高了生长电流和微弧氧化层生长速率;恒电流模式下,纳米SiO2复合提高了微弧氧化层生长速率,电流效率提高。纳米SiO2颗粒在纳米复合微弧氧化层中掺杂,形成杂质能级,并且降低了微弧氧化层材料的禁带宽度,促进了微弧氧化电击穿过程,是纳米SiO2复合促进微弧氧化层生长的主要原因。...
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| Published in | 航空材料学报 Vol. 32; no. 1; pp. 68 - 71 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
装甲兵工程学院装备再制造工程系,北京,100072%酒泉卫星发射中心,甘肃酒泉,732750
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-5053 |
| DOI | 10.3969/j.issn.1005-5053.2012.1.014 |
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| Abstract | 通过在微弧氧化电解液中添加纳米SiO2颗粒配制纳米电解液,在铝合金表面制备了纳米复合微弧氧化层,考察了恒电压和恒电流两种模式下纳米SiO2复合对微弧氧化层生长动力学的影响。结果表明,恒电压模式下,纳米SiO2复合大幅度提高了生长电流和微弧氧化层生长速率;恒电流模式下,纳米SiO2复合提高了微弧氧化层生长速率,电流效率提高。纳米SiO2颗粒在纳米复合微弧氧化层中掺杂,形成杂质能级,并且降低了微弧氧化层材料的禁带宽度,促进了微弧氧化电击穿过程,是纳米SiO2复合促进微弧氧化层生长的主要原因。 |
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| AbstractList | TG174.45; 通过在微弧氧化电解液中添加纳米SiO2颗粒配制纳米电解液,在铝合金表面制备了纳米复合微弧氧化层,考察了恒电压和恒电流两种模式下纳米SiO2复合对微弧氧化层生长动力学的影响.结果表明,恒电压模式下,纳米SiO2复合大幅度提高了生长电流和微弧氧化层生长速率；恒电流模式下,纳米SiO2复合提高了微弧氧化层生长速率,电流效率提高.纳米SiO2颗粒在纳米复合微弧氧化层中掺杂,形成杂质能级,并且降低了微弧氧化层材料的禁带宽度,促进了微弧氧化电击穿过程,是纳米SiO2复合促进微弧氧化层生长的主要原因. 通过在微弧氧化电解液中添加纳米SiO2颗粒配制纳米电解液,在铝合金表面制备了纳米复合微弧氧化层,考察了恒电压和恒电流两种模式下纳米SiO2复合对微弧氧化层生长动力学的影响。结果表明,恒电压模式下,纳米SiO2复合大幅度提高了生长电流和微弧氧化层生长速率;恒电流模式下,纳米SiO2复合提高了微弧氧化层生长速率,电流效率提高。纳米SiO2颗粒在纳米复合微弧氧化层中掺杂,形成杂质能级,并且降低了微弧氧化层材料的禁带宽度,促进了微弧氧化电击穿过程,是纳米SiO2复合促进微弧氧化层生长的主要原因。 |
| Author | 马世宁 索相波 邱骥 朱海燕 |
| AuthorAffiliation | 装甲兵工程学院装备再制造工程系,北京100072 酒泉卫星发射中心,甘肃酒泉732750 |
| AuthorAffiliation_xml | – name: 装甲兵工程学院装备再制造工程系,北京,100072%酒泉卫星发射中心,甘肃酒泉,732750 |
| Author_FL | MA Shi-ning ZHU Hai-yan SUO Xiang-bo QIU Ji |
| Author_FL_xml | – sequence: 1 fullname: MA Shi-ning – sequence: 2 fullname: SUO Xiang-bo – sequence: 3 fullname: QIU Ji – sequence: 4 fullname: ZHU Hai-yan |
| Author_xml | – sequence: 1 fullname: 马世宁 索相波 邱骥 朱海燕 |
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| ClassificationCodes | TG174.45 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3969/j.issn.1005-5053.2012.1.014 |
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| DocumentTitleAlternate | Effects of n-SiO2 on Growth Dynamics of Alumina Coatings Formed on 7A52 Aluminum Alloy by Micro-arc Oxidation |
| DocumentTitle_FL | Effects of n-SiO2 on Growth Dynamics of Alumina Coatings Formed on 7A52 Aluminum Alloy by Micro-arc Oxidation |
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| Keywords | 微弧氧化 生长动力学 掺杂 纳米复合 铝合金 |
| Language | Chinese |
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| Notes | Al2O3 coatings embedded with SiO2 nanoparticles were produced on 7A52 aluminum alloy by adding SiO2 nanoparticles into the electrolyte.The effect of n-SiO2 on the growth kinetics of the micro-arc oxidized coating under the two modes of constant voltage and constant current was investigated.The results show that nano-SiO2 increased the growth rate of micro-arc oxidized coating and the current efficiency.Nano-SiO2 is formed impurity energy level and narrowed band gap,so that impurity discharge is existed during the breakdown process and promoted the micro-arc oxidation process of electrical breakdown,resulting in the improvement of the growth efficiency of micro-arc oxidized coating. aluminum alloy; micro-arc oxidation; nanocompostie; dynamics study; doping 11-3159/V MA Shi-ning,SUO Xiang-bo,QIU Ji,ZHU Hai-yan（1.Department of Remanufacturing,Academy of Armored Forces Engineering,Beijing 100072,China;2.Jiuquan Satellite launching Center,Jiuquan 732750,Gansu China） |
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| PublicationTitle | 航空材料学报 |
| PublicationTitleAlternate | Journal of Aeronautical Materials |
| PublicationTitle_FL | Journal of Aeronautical Materials |
| PublicationYear | 2012 |
| Publisher | 装甲兵工程学院装备再制造工程系,北京,100072%酒泉卫星发射中心,甘肃酒泉,732750 |
| Publisher_xml | – name: 装甲兵工程学院装备再制造工程系,北京,100072%酒泉卫星发射中心,甘肃酒泉,732750 |
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| SubjectTerms | 微弧氧化 掺杂 生长动力学 纳米复合 铝合金 |
| Title | 纳米SiO2复合对铝合金表面微弧氧化层生长动力学的影响 |
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