Synthesis and characterization of ternary AL-C-N compound

Sun, Z., Xu, S., Ostrikov, K., Tsakadze, E.L., & Tsakadze, Z.L. (2002) Synthesis and characterization of ternary AL-C-N compound. International Journal of Modern Physics B, 16(6-7), pp. 836-840.

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Efficient hydrogenated diamond-like carbon (DLC) film deposition in a plasma reactor that features both the capacitive and inductively coupled operation regimes is reported. The hydrogenated DLC films have been prepared on silicon wafers using a low-frequency (500 kHz) inductively coupled plasma (LF ICP) chemical vapor deposition (CVD) system. At low RF powers, the system operates as an asymmetric capacitively coupled plasma source, and the film deposition process is undertaken in the electrostatic (E) discharge regime. The films deposited in the electrostatic mode feature graphite-like structure. Above the mode transition threshold, the high-density inductively coupled plasma is produced in the electromagnetic (H) discharge regime. Raman spectrometry suggests the possibility to control relative proportions of sp2 and sp3 hybridized carbon. Variation of the DC substrate bias results in dramatic modification of the film structure from the polymeric (unbiased substrates) to the diamond-like (optimized bias). It has been shown that the deposition rate and hardness of the DLC film are much higher in the H-mode deposition regime. For a 20 m Torr H-mode CH4+Ar gas mixture discharge, the DLC film exhibits mechanical hardness of 18 GPa, Young's modulus of 170 GPa, and compressive stress of 1.3 GPa.

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ID Code: 74177
Item Type: Journal Article
Refereed: No
Additional URLs:
DOI: 10.1142/S0217979202010993
ISSN: 0217-9792
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 21 Jul 2014 04:45
Last Modified: 21 Jul 2014 04:45

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