Optical Transmittance of Anodically Oxidized Aluminum Alloy
Optical Transmittance of Anodically Oxidized Aluminum Alloy
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阳极氧化铝合金的透光率
DOI：
10.1143/jjap.34.3134
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发表时间：
1995
影响因子：
1.5
通讯作者：
S. Ono
中科院分区：
文献类型：
--
作者：
M. Saito;Y. Shiga;M. Miyagi;K. Wada;S. Ono
研究了纯铝和铝合金（A5052）阳极氧化膜的透光率和各向异性。合金氧化物膜表现出增强的极化功能，特别是当在大电流密度下进行阳极氧化时。化学分析表明，合金氧化物膜比纯氧化铝膜含有更多的未氧化铝。极化功能可以通过考虑排列在氧化铝膜的柱状结构中的未氧化的铝颗粒来阐明。电子显微镜观察表明，合金氧化膜中存在许多孔洞，孔洞周围有不规则排列的柱状细胞。这种孔和不规则的单元排列导致未氧化的铝的量的增加，并因此引起散射损耗。
Optical transmittance and anisotropy of anodic oxide films that were made from pure aluminum and an aluminum alloy (A5052) were studied. The alloy oxide film exhibits an enhanced polarization function, particularly when anodization is carried out at a large current density. It was revealed by chemical analysis that the alloy oxide film contains a larger amount of unoxidized aluminum than the pure-aluminum oxide film. The polarization function can be elucidated by considering unoxidized aluminum particles that are arranged in the columnar structure of the alumina film. Electron microscope observation showed that many holes exist in the alloy oxide film, around which columnar cells are arranged irregularly. Such holes and irregular cell arrangement cause the increase in the amount of unoxidized aluminum, and consequently induces scattering loss.