| Autor: |
Helmut Rudigier, Rostislav Daniel, Christian Tritremmel, M. Lechthaler, Christian Mitterer, Peter Polcik |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Surface and Coatings Technology. 213:1-7 |
| ISSN: |
0257-8972 |
| DOI: |
10.1016/j.surfcoat.2012.09.055 |
| Popis: |
Al–Cr–N is a well-established hard film system with excellent mechanical and tribological properties. The effect of B addition on structure and mechanical properties of Al–Cr–N films grown by cathodic arc evaporation was systematically investigated. The B content in the targets was varied between 10 and 30 at.% at a constant Al/Cr atomic ratio of 1.8. X-ray diffraction revealed that all coatings exhibit a face-centered cubic structure, with texture and grain size affected by B content and substrate bias voltage. X-ray photoelectron spectroscopy indicates formation of a nanocomposite structure consisting of a crystalline face-centered cubic Al–Cr–(B)–N solid solution and an amorphous BN x phase. Nanoindentation experiments revealed a significant hardness enhancement of Al–Cr–(B)–N with respect to B-free films, accompanied with a reduction of residual compressive stress. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect