Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films

Abstract Currently, the arguments have existed in the strengthening mechanism and microstructural model of the nanocomposite film due to lack of the convincible experimental evidences. In this investigation, the quarternary TiSiCN nanocomposite films with the different C and Si contents are synthesi...

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Autores principales:	Wei Li, Ping Liu, Zenghui Xue, Fengcang Ma, Ke Zhang, Xiaohong Chen, Rui Feng, Peter K. Liaw
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/261ef31fe79a40f6b904806677ef6238
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spelling	oai:doaj.org-article:261ef31fe79a40f6b904806677ef62382021-12-02T15:06:01ZMicrostructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films10.1038/s41598-017-02186-12045-2322https://doaj.org/article/261ef31fe79a40f6b904806677ef62382017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02186-1https://doaj.org/toc/2045-2322Abstract Currently, the arguments have existed in the strengthening mechanism and microstructural model of the nanocomposite film due to lack of the convincible experimental evidences. In this investigation, the quarternary TiSiCN nanocomposite films with the different C and Si contents are synthesized by the reactive-magnetron-sputtering technique. The TiSiCN film is characterized as the nanocomposite structure with the TiN nanocrystallites surrounded by the (Si3N4 + C + CNx) interface phase. When the C/Si content ratio is 2:2, the TiSiCN nanocomposite film is remarkably strengthened with the maximal hardness and elastic modulus of 46.1 GPa and 425 GPa, respectively. Meanwhile, the (Si3N4 + C + CNx) interfaces exhibit as a crystallized form, which can coordinate the growth misorientations and maintain the coherently epitaxial growth between the TiN nanocrystallites and interfaces. Through the high-resolution transmission electron microscopy (HRTEM) observations, this investigation firstly provides the direct experimental evidence for the crystallized feature of the interfaces when the TiSiCN nanocomposite film is strengthened, suggesting that the strengthening effect of the TiSiCN nanocomposite film can be attributed to the coherent-interface strengthening mechanism, which is expressed as the “nc-TiN/c-Si3N4/c-C/c-CNx” model.Wei LiPing LiuZenghui XueFengcang MaKe ZhangXiaohong ChenRui FengPeter K. LiawNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wei Li Ping Liu Zenghui Xue Fengcang Ma Ke Zhang Xiaohong Chen Rui Feng Peter K. Liaw Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
description	Abstract Currently, the arguments have existed in the strengthening mechanism and microstructural model of the nanocomposite film due to lack of the convincible experimental evidences. In this investigation, the quarternary TiSiCN nanocomposite films with the different C and Si contents are synthesized by the reactive-magnetron-sputtering technique. The TiSiCN film is characterized as the nanocomposite structure with the TiN nanocrystallites surrounded by the (Si3N4 + C + CNx) interface phase. When the C/Si content ratio is 2:2, the TiSiCN nanocomposite film is remarkably strengthened with the maximal hardness and elastic modulus of 46.1 GPa and 425 GPa, respectively. Meanwhile, the (Si3N4 + C + CNx) interfaces exhibit as a crystallized form, which can coordinate the growth misorientations and maintain the coherently epitaxial growth between the TiN nanocrystallites and interfaces. Through the high-resolution transmission electron microscopy (HRTEM) observations, this investigation firstly provides the direct experimental evidence for the crystallized feature of the interfaces when the TiSiCN nanocomposite film is strengthened, suggesting that the strengthening effect of the TiSiCN nanocomposite film can be attributed to the coherent-interface strengthening mechanism, which is expressed as the “nc-TiN/c-Si3N4/c-C/c-CNx” model.
format	article
author	Wei Li Ping Liu Zenghui Xue Fengcang Ma Ke Zhang Xiaohong Chen Rui Feng Peter K. Liaw
author_facet	Wei Li Ping Liu Zenghui Xue Fengcang Ma Ke Zhang Xiaohong Chen Rui Feng Peter K. Liaw
author_sort	Wei Li
title	Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
title_short	Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
title_full	Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
title_fullStr	Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
title_full_unstemmed	Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films
title_sort	microstructures, mechanical behavior and strengthening mechanism of tisicn nanocomposite films
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/261ef31fe79a40f6b904806677ef6238
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Microstructures, mechanical behavior and strengthening mechanism of TiSiCN nanocomposite films

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