Cobalt oxalate formation on thin-film magnetic recording media

被引：9
|
作者：
Karis, T. E.
Guo, X-C.
Marchon, B.
Raman, V.
Hsiao, Y-L.
机构：
[1] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95120 USA
[2] Hitachi Global Storage Technol, San Jose, CA 95193 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 10期
关键词：
cobalt alloys; corrosion; disk drives; disks; magnetic disk;
D O I：
10.1109/TMAG.2006.878629
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Needle-like crystalline nanostructures were formed on the surface of a lubricated experimental thin-film media during exposure to elevated temperature and humidity. Clusters of nodules were formed on unlubricated media during the same exposure. Both the needles and nodules were identified as cobalt oxalate by Micro-Raman spectroscopy. A chemical mechanism is proposed to explain how cobalt hydroxide corrosion product and atmospheric oxalic acid combine to form cobalt oxalate in the presence of moisture.
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页码：2507 / 2509
页数：3
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