Effect of coating thickness on the cutting sharpness and durability of Zr-based metallic glass thin film coated surgical blades

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Title:	Effect of coating thickness on the cutting sharpness and durability of Zr-based metallic glass thin film coated surgical blades
Authors:	蔡佩樺;Tsai, P.H.;Li, T.H.;Hsu, K.T.;Chiou, J.W.;Jang, J.S.C.;Chu, J.P.
Contributors:	工學院材料科學與工程研究所
Keywords:	Biomedical applications;Blades (cutting);Coating;Cutting;Cutting test;Durability;Metallic glass;Metallic glasses;Sharpness;Thin film;Thin films;Zirconium base alloys
Date:	2016-11-01
Issue Date:	2026-04-23 11:31:24 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： The cutting sharpness and durability of commercial blades without and with 200–500nm thicknesses of Zr-Cu-Al-Ag-Si and Zr-Cu-Ni-Al-Si metallic glass thin film (MGTF) coating were systematically characterized and evaluated. The amorphous states of all MGTF coatings were examined by grazing incident X-ray diffraction analysis. The observation of scanning electron microscopy reveals that MGTF coated blades own much smoother surface than the commercial one which indicates smaller friction force during cutting process. Results of sharpness test in the beginning reveal that all MGTF-coated blades possess smaller value of blade sharpness index (BSI) than the commercial one. The cutting durability of the MGTF-coated and commercial blades was evaluated by the variation of BSI values by 25cm cutting test. The commercial blade was blunted (BSI=0.49) after 20cm cutting path. Conversely, the 300nm-thick MGTF-coated blades present the smallest BSI value after 20cm cutting path in comparison with other thicknesses MGTF-coated blades and commercial blade. As a result, the cutting durability of surgical blade can be significant improved by Zr-based MGTF-coating, can keep the BSI value less than 0.45 after 20cm cutting test. •Zr based metallic glass thin film coated on commercial surgical blades.•Metallic glass thin film coated blades exhibit much smoother surface.•Metallic glass thin film coated blades show the better initial cutting sharpness.•Metallic glass thin film coated blades show the better cutting durability. 出版者： Elsevier B.V 出版日期： 2016-11-01 出處： Thin solid films, 2016-11, Vol.618, p.36-41 版權： 2016 Elsevier B.V. 識別號： ISSN: 0040-6090 識別號： EISSN: 1879-2731 識別號： DOI: 10.1016/j.tsf.2016.05.020
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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