Effects of Cr Concentration on the Structure and the Electrical and Optical Properties of Ti-Al-Cr-N Thin Films Prepared by Means of Reactive Co-Sputtering
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Elemental Chemical Composition
3.2. Crystalline Structure
3.3. Roughness
3.4. Electrical Properties
3.5. Optical Properties
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Parameter | Values | ||||
---|---|---|---|---|---|
Cr target—RF power (W) | 0 | 80 | 110 | 140 | 170 |
Ti50Al50 target—Pulsed DC power (W) | 270 | ||||
Deposition time for thin coatings (min) | 40 | 26 | 20 | 20 | 15 |
Deposition time for thick coatings (min) | 150 | 120 | 90 | 90 | 72 |
Base pressure (Pa) | 3 × 10−4–5 × 10−4 | ||||
Working pressure (Pa) | 0.40 ± 0.05 | ||||
N2 flux (sccm) | 3.5 | ||||
Ar flux (sccm) | 14 | ||||
Substrate temperature (K) | 573 ± 5 | ||||
Substrate holder rotation speed (rpm) | 10 |
Coating | Cr Target Power (W) | Al (at%) | Ti (at%) | Cr (at%) | N (at%) |
---|---|---|---|---|---|
TiAlCrN-0 | 0 | 50.2 | 7.0 | 0.0 | 42.8 |
TiAlCrN-80 | 80 | 46.2 | 7.7 | 2.6 | 43.5 |
TiAlCrN-110 | 110 | 44.4 | 7.2 | 5.3 | 43.1 |
TiAlCrN-140 | 140 | 39.0 | 7.2 | 8.9 | 44.8 |
TiAlCrN-170 | 170 | 37.5 | 7.0 | 11.6 | 43.9 |
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Prieto-Novoa, G.; Vallejo, F.; Piamba, O.; Olaya, J.; Pineda, Y. Effects of Cr Concentration on the Structure and the Electrical and Optical Properties of Ti-Al-Cr-N Thin Films Prepared by Means of Reactive Co-Sputtering. Crystals 2022, 12, 1831. https://doi.org/10.3390/cryst12121831
Prieto-Novoa G, Vallejo F, Piamba O, Olaya J, Pineda Y. Effects of Cr Concentration on the Structure and the Electrical and Optical Properties of Ti-Al-Cr-N Thin Films Prepared by Means of Reactive Co-Sputtering. Crystals. 2022; 12(12):1831. https://doi.org/10.3390/cryst12121831
Chicago/Turabian StylePrieto-Novoa, Gina, Fabio Vallejo, Oscar Piamba, Jhon Olaya, and Yaneth Pineda. 2022. "Effects of Cr Concentration on the Structure and the Electrical and Optical Properties of Ti-Al-Cr-N Thin Films Prepared by Means of Reactive Co-Sputtering" Crystals 12, no. 12: 1831. https://doi.org/10.3390/cryst12121831