Chemical bonding of nitrogenated ultrananocrystalline diamond films deposited on titanium substrates by pulsed laser deposition

Sausan Al-Riyami, Hiroki Gima, Hiroshi Akamine, Tsuyoshi Yoshitake

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

Ultrananocrystalline diamond (UNCD)/nonhydrogenated nitrogenated amorphous carbon (a-C:N) composite (UNCD/a-C:N) films were prepared on titanium substrates in a nitrogen atmosphere by pulsed laser deposition, and their adhesion to the titanium substrates was remarkably improved as compared with those of UNCD/hydrogenated nitrogenized amorphous carbon (a-C:H:N) composite films deposited in a nitrogen and hydrogen mixture atmosphere. Their chemical bonding structures were investigated in details by X-ray photoemission and near edge X-ray absorption fine structure spectroscopies with synchrotron radiation. The UNCD/a-C:N films exhibit an obviously enhanced formation of sp2 and sp bonding such as C=N and CßN bonds. It should be contributable to the adhesion improvement. Since its formation locally disconnects sp3 bonding networks in the films, an internal stress, which is the main reason for exfoliation, should be released.

本文言語英語
ページ(範囲)M33-M38
ジャーナルECS Journal of Solid State Science and Technology
2
11
DOI
出版ステータス出版済み - 2013

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料

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