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Hardness and Nitrogen Bonding Structure of A(x)Ti(1-x)N/CrN Multilayer Hard Coating
- Authors
- Seo, Jong-Hyun; Yoon, Sang-Won; Chae, Keun-Hwa; Park, Jong-Keuk; Song, Jong-Han; Jayaram, Vickram; Lee, Kon-Bae; Seong, Tae-Yeon; Kwon, Hoon; Ahn, Jae-Pyoung
- Issue Date
- Feb-2012
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- AlN/CrN; AlTiN/CrN; Multilayer Hard Coating; Crack Propagation; Broken Nitrogen Bond
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.2, pp.1581 - 1584
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 12
- Number
- 2
- Start Page
- 1581
- End Page
- 1584
- ISSN
- 1533-4880
- Abstract
- AlxTi1-xN/CrN multilayer coatings were fabricated by magnetron sputtering and those hardness variations were studied by observing the crack propagation and measuring the chemical bonding state of nitrides by Ti addition. While AlN/CrN multilayer shown stair-like crack propagation, AlxTi1-xN/CrN multilayer illustrated straight crack propagation. Most interestingly, Ti addition induced more broken nitrogen bonds in the nitride multilayers, leading to the reduction of hardness. However, the hardness of Al0.25Ti0.75N/CrN multilayer, having high Ti contents, increased by the formation of many Ti-N bond again instead of Al-N bond. From these results, we found that linear crack propagation behavior was dominated by broken nitrogen bonds in the AlxT1-xN/CrN multilayer coatings.
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Related Researcher
- SEONG, TAE YEON
- College of Engineering (Department of Materials Science and Engineering)