Details

Autor(en) / Beteiligte

• Chang, Chi-Lung
• Wu, Bo-Yi
• Chen, Pin-Hung
• Chen, Wei-Chih
• Ho, Chun-Ta
• Wu, Wan-Yu

Titel

Effect of Duty Cycle on Characteristics of CrN sub(x) Thin Films Deposited by Pulsed Direct Current Reactive Magnetron Sputtering

Ist Teil von

• Japanese Journal of Applied Physics, 2013-11, Vol.52 (11S), p.11NB08-1-11NB08-5

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• CrN sub(x) thin films have been deposited on silicon wafer, 304 stainless steel, and tungsten carbide substrates using pulsed DC reactive magnetron sputtering. A 10 kHz unipolar mode and a N sub(2)/Ar ratio of 17.5% were used. During the deposition, the substrate was not biased and not heated during the entire deposition time of 30 min. The microstructure, crystalline phase, and mechanical properties of the obtained CrN sub(x) thin films were examined to investigate the effect of the duty cycle. The results show that the maximum current and power density increase with decreasing duty cycle from 100% (DC) to 5%. Although the thickness of the CrN sub(x) thin films decreases with decreasing duty cycle, the ratio of the thickness to the pulse on-time shows a maximum of 273.3 nm/min at the lowest duty cycle of 5%. The obtained CrN sub(x) thin films show a mixture of the Cr2N and CrN phases. Moreover, the Cr-N bonding state and the percentages of CrN and Cr sub(2)N vary with the duty cycle. The effects of the duty cycle on the hardness, coefficient of friction, and corrosion behavior of the CrN sub(x) thin films are also investigated in this study.