The mechanism of peo process on al-si alloys with the bulk primary silicon
文献类型：期刊论文
| 作者 | Xu, Fangtao1,2; Xia, Yuan1; Li, Guang1 |
| 刊名 | Applied surface science
 |
| 出版日期 | 2009-09-15 |
| 卷号 | 255期号:23页码:9531-9538 |
| 关键词 | Peo Al-si alloys Bulk primary silicon Dentrite silicon |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2009.07.090 |
| 通讯作者 | Xia, yuan(xia@imech.ac.cn) |
| 英文摘要 | This study focuses on mechanism of ceramic coating on al-si alloys with bulk primary si using plasma electrolytic oxidation (peo) technology. al-si alloys with 27-32% si in weight were used as substrates. the morphologies, composition and microstructure of peo coatings were investigated by scanning electron microscopy (sem) with energy dispersive x-ray system (edx). results showed that the peo process had four different stages. the effect of bulk si is greatly on the morphology and composition of coatings at first three stages. anodic oxide films formed on al and si phases, respectively. when the voltage exceeded 40 v, glow appeared and concentrated on the localized zone of interface of al and si phase. al-si-o compounds formed and covered on the dendrite si phase surface, and the coating on bulk si, which was silicon oxide, was rougher than that on other phase. if the treatment time was long enough, the coatings with uniform surface morphologies and elements distribution will be obtained but the microstructure of inner layer is looser due to the bulk si. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | MICROARC OXIDATION ; ALUMINUM-ALLOYS ; OXIDE COATINGS ; PLASMA |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| WOS类目 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000269360300040 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2402419 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xia, Yuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Fangtao,Xia, Yuan,Li, Guang. The mechanism of peo process on al-si alloys with the bulk primary silicon[J]. Applied surface science,2009,255(23):9531-9538. |
| APA | Xu, Fangtao,Xia, Yuan,&Li, Guang.(2009).The mechanism of peo process on al-si alloys with the bulk primary silicon.Applied surface science,255(23),9531-9538. |
| MLA | Xu, Fangtao,et al."The mechanism of peo process on al-si alloys with the bulk primary silicon".Applied surface science 255.23(2009):9531-9538. |
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来源：中国科学院大学
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