-
- Inaba Hiroshi
- WW Media Development, HGST Japan, a Western Digital company
-
- Inagaki Joe
- WW Media Development, HGST Japan, a Western Digital company
-
- Matsumoto Hiroyuki
- WW Media Development, HGST Japan, a Western Digital company
抄録
Perpendicular recording media samples were exposed at 65 ℃ and 90 % RH for 6 days to trigger corrosion growth. Several corrosion spots were selected by optical surface analyzer, and then analyzed by scanning electron microscope, transmission electron microscope, and element energy dispersive X-ray spectrometry. By scanning electron microscope images, the spots were classified to the following corrosion patterns: "Rod type" and "Whisker type". Transmission electron microscope with element energy dispersive X-ray spectrometry analysis revealed that the "Rod type" was made of nickel oxides with micrometers in size, while the "Whisker type" was made of metallic cobalt with sub-micrometers in size. The nickel and cobalt were eluted from nickel-alloy layers and cobalt-alloy layers to media overcoat surface, respectively. In cross-sectional transmission electron microscope images of the samples with "Rod type", considerable deformation of media layer structures was observed, which was due to the lack of the nickel-alloy layers. Such corrosion induced the fatal error because of huge corroded materials and recording layer distortions.
収録刊行物
-
- Proceedings of JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment : IIP/ISPS joint MIPE
-
Proceedings of JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment : IIP/ISPS joint MIPE 2015 (0), _MoP-10-1_-_MoP-10-3_, 2015
一般社団法人 日本機械学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205892485888
-
- NII論文ID
- 110010044042
-
- ISSN
- 24243132
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可