| 摘要 |
PROBLEM TO BE SOLVED: To provide a high purity aluminum alloy material which can be used as the material composing a plasma reactor, and has sufficient strength. SOLUTION: The high purity aluminum alloy material has a composition comprising, by mass, 0.4 to 2.1% magnesium and 0.4 to 1.2% silicon, and in which the magnesium content satisfies the inequality (1), and the content of impurities is≤0.1%: 1.70×C<SB>Si</SB>-1%≤C<SB>Mg</SB>≤1.70×C<SB>Si</SB>(1); wherein, C<SB>Mg</SB>denotes the magnesium content (mass%); and C<SB>Si</SB>denotes the silicon content (mass%), respectively. The high purity aluminum alloy material is a cast ingot material obtained by casting, or a plastic-worked material obtained by subjecting the cast ingot material to plastic working. Further, an anodized high purity aluminum alloy material is obtained by forming an anodized coating on the surface of the aluminum alloy material. COPYRIGHT: (C)2004,JPO&NCIPI
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