Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering
This paper describes how hard yet touch ceramic coating is achieved: hard and brittle nanocomposite layers (nanocrystalline CrAlN imbedded in amorphous SiNx or nc-CrAlN/a-SiNx are intimately combined with soft and tough CrAlN polycrystalline layers (pc-CrAlN) to build multilayer coatings of differen...
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sg-ntu-dr.10356-1009962020-03-07T12:34:52Z Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering Wang, Yu Xi Zhang, Sam Lee, Jyh-Wei Lew, Wen Siang Sun, Deen Li, Bo School of Mechanical and Aerospace Engineering School of Physical and Mathematical Sciences This paper describes how hard yet touch ceramic coating is achieved: hard and brittle nanocomposite layers (nanocrystalline CrAlN imbedded in amorphous SiNx or nc-CrAlN/a-SiNx are intimately combined with soft and tough CrAlN polycrystalline layers (pc-CrAlN) to build multilayer coatings of different period thickness with a constant total coating thickness of one micron. At the period thickness of 20 nm, an improved hardness of 33 GPa was achieved with a scratch toughness 5 times as much as that of the nanocomposite monolayer. At the period thickness of 40 nm, drastic scratch toughness was increased 7 folds at a slightly reduction of hardness (from 30 to 27.9 GPa). 2013-09-25T07:13:36Z 2019-12-06T20:31:51Z 2013-09-25T07:13:36Z 2019-12-06T20:31:51Z 2012 2012 Journal Article Wang, Y. X., Zhang, S., Lee, J.-W., Lew, W. S., Sun, D., & Li, B. (2012). Hard Yet Tough Ceramic Coating: Not a Dream Any More—I. via Nanostructured Multilayering. Nanoscience and Nanotechnology Letters, 4(4), 375-377(3). https://hdl.handle.net/10356/100996 http://hdl.handle.net/10220/13691 10.1166/nnl.2012.1369 en Nanoscience and nanotechnology letters |
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This paper describes how hard yet touch ceramic coating is achieved: hard and brittle nanocomposite layers (nanocrystalline CrAlN imbedded in amorphous SiNx or nc-CrAlN/a-SiNx are intimately combined with soft and tough CrAlN polycrystalline layers (pc-CrAlN) to build multilayer coatings of different period thickness with a constant total coating thickness of one micron. At the period thickness of 20 nm, an improved hardness of 33 GPa was achieved with a scratch toughness 5 times as much as that of the nanocomposite monolayer. At the period thickness of 40 nm, drastic scratch toughness was increased 7 folds at a slightly reduction of hardness (from 30 to 27.9 GPa). |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Wang, Yu Xi Zhang, Sam Lee, Jyh-Wei Lew, Wen Siang Sun, Deen Li, Bo |
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Wang, Yu Xi Zhang, Sam Lee, Jyh-Wei Lew, Wen Siang Sun, Deen Li, Bo |
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Wang, Yu Xi Zhang, Sam Lee, Jyh-Wei Lew, Wen Siang Sun, Deen Li, Bo Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
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Wang, Yu Xi |
title |
Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
title_short |
Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
title_full |
Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
title_fullStr |
Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
title_full_unstemmed |
Hard yet tough ceramic coating : not a dream any more—I. via nanostructured multilayering |
title_sort |
hard yet tough ceramic coating : not a dream any more—i. via nanostructured multilayering |
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2013 |
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https://hdl.handle.net/10356/100996 http://hdl.handle.net/10220/13691 |
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