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Effect of Deposition Pressure, Nitrogen Content and Substrate Temperature on Optical and Mechanical Behavior of Nanocomposite Al-Si-N Hard Coatings for Solar Thermal Applications

IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur

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Title Effect of Deposition Pressure, Nitrogen Content and Substrate Temperature on Optical and Mechanical Behavior of Nanocomposite Al-Si-N Hard Coatings for Solar Thermal Applications
 
Creator Soni,
Kumari, Swati
Sharma, S K
Mishra, Suman K
 
Subject Nano Composites
 
Description Hard and optically transparent nanocomposite Al-Si-N thin films were deposited using DC magnetron sputtering at different process parameters. There was a significant effect of these parameters on the film properties affecting its mechanical and optical behavior. The nitrogen content or pressure, deposition pressure and substrate temperature strongly influence the phase formation which governs the hardness and optical transparency of the coating. Hardness was measured between 18 and 30 GPa. The band gap could be varied in the range of 3.8-4.2 eV by varying nitrogen pressures in the chamber during deposition. The films showed (0-80)% transparency in UV and visible region depending on the sputtering conditions.
 
Publisher Springer
 
Date 2018-12
 
Type Article
PeerReviewed
 
Relation https://doi.10.1007/s11665-018-3730-y
http://eprints.nmlindia.org/7891/
 
Identifier Soni, and Kumari, Swati and Sharma, S K and Mishra, Suman K (2018) Effect of Deposition Pressure, Nitrogen Content and Substrate Temperature on Optical and Mechanical Behavior of Nanocomposite Al-Si-N Hard Coatings for Solar Thermal Applications. Journal of Materials Engineering and Performance, 27(12) (IF-1.094). pp. 6729-6736.