Glass and nanocrystalline phase formation in CuZrAg alloys: Insights from combinatorial thin film libraries studied by mapping synchrotron X-ray diffraction

被引:2
|
作者
Putz, B. [1 ,2 ]
Milkovic, O. [3 ,4 ]
Mohanty, G. [5 ]
Ipach, R. [1 ]
Petho, L. [1 ]
Milkovicova, J. [6 ]
Saksl, K. [3 ,7 ]
Michler, J. [1 ]
机构
[1] Empa Swiss Fed Labs Mat Sci & Technol, Lab Mech Mat & Nanostruct, Feuerwerkerstr 39, CH-3602 Thun, Switzerland
[2] Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria
[3] Slovak Acad Sci, Inst Mat Res, Watsonova 47, Kosice 040 01, Slovakia
[4] Slovak Acad Sci, Inst Expt Phys, Watsonova 47, Kosice 04101, Slovakia
[5] Tampere Univ, Mat Sci & Environm Engn, Fac Engn & Nat Sci, Tampere 33014, Finland
[6] Safarik Univ, Fac Sci, Dept Condensed Matter Phys, Pk Angelinum 9, Kosice 04154, Slovakia
[7] Tech Univ Kosice, Fac Mat Met & Recycling, Inst Mat & Qual Engn, Letna 9, Kosice 04200, Slovakia
基金
芬兰科学院; 瑞士国家科学基金会;
关键词
Combinatorial materials science; Magnetron sputtering; Thin film metallic glass; X-ray diffraction; Structure analysis; Polymer substrate; BULK METALLIC GLASSES; MECHANICAL-PROPERTIES; THERMAL-STABILITY; FORMING ABILITY; ZR; BEHAVIOR; AG; SOFTWARE;
D O I
10.1016/j.matdes.2024.113144
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report detailed diffraction peak analysis and parameters indicative of the transition between fully amorphous microstructures and nanocrystal formation in sputter deposited thin film metallic glasses. Specifically, we fabricated ternary CuZrAg alloy films (2 mu m thickness) with a large compositional gradient on flexible, X-ray transparent polymer substrates in high vacuum conditions. The combinatorial libraries were subjected to pointby-point structural (XRD synchrotron radiation) and chemical (X-ray fluorescence spectroscopy) analysis, characterizing roughly 172 alloys. A strong correlation was found between peak symmetry and width, and early stages of crystalline phase formation. These nanocrystals are difficult to detect from the evolution of the peak position. In view of current literature, our data questions the recently claimed universality of the peak width as indicator of high glass forming ability. The addition of Ag significantly improves the poor glass formation of binary CuZr (36 alloys) under identical deposition conditions, as fully amorphous alloys are found for the majority of the investigated composition space. A thorough understanding of the microstructure of CuZrAg alloys on flexible substrates is highly relevant in view of favourable antibacterial properties and potential application as coatings for biomedical surfaces.
引用
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页数:12
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