Characteristic studies on the ZrCuAlSi multi-component thin-film metallic glasses fabricated by pulsed laser deposition
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Characteristic studies on the ZrCuAlSi multi‑component thin‑film metallic glasses fabricated by pulsed laser deposition Baoqing Zhang1 · Xiaowei Yang1 · Guohua Cao2 · Gaopeng Liu1 · Zhifei Wei1 · Haitao Zong2 · Yuehong Yin2 · Hari Bala1 Received: 6 April 2020 / Accepted: 13 May 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract (Zr47Cu44Al9)100−xSix (x = 0, 0.5, 1.5 and 2.5 at%) thin-film metallic glasses (TFMGs) were deposited at glass substrate by pulsed laser deposition. The influence of Si content and substrate temperature on the microstructure, optical and electrical properties was investigated. After adding Si in the Zr47Cu44Al9 system, the transmittance of the films enhances obviously, especially in the near-infrared region. The resistivity increases and becomes more sensitive to the temperature due to Si addition. With increasing substrate temperatures from room temperature to 430 °C, (Zr47Cu44Al9)98.5Si1.5 films display fully amorphous structure. Appropriate substrate temperature drastically decreases the resistivity of films without degrading the transmittance. (Zr47Cu44Al9)98.5Si1.5 TFMG deposited at 330 °C exhibits the visible transmittance of 49.38%, the infrared transmittance of 80.27% and the resistivity of 7.62 mΩ cm, which are useful properties for their potential applications in infrared technology with the high requirement of radiation resistance and corrosion resistance. Keywords Thin-film metallic glasses · Pulsed laser deposition · Substrate temperature · Optical and electrical properties
1 Introduction Metallic glasses (MGs) as prominent material have attracted much exploration over the last decades due to their distinctive structure, outstanding performances and broad application prospects. Recently, thin-film metallic glasses (TFMGs) have been developed, which reserve some characteristics adopted from their bulk materials [1–4]. Compared with the rapid quenching in processing MGs, high undercooling can be more proper due to the preparation of TFMGs regarded as a gas-to-solid process rather than a liquid-to-solid process. Owing to its amorphous nature, TFMGs are thought to be free from crystalline defects, such as dislocation and grain boundaries. Accordingly, TFMGs possess exceptional mechanical properties, such as high strength, excellent corrosion and wear resistances. After coated with 200 nm Zr47Cu31Al13Ni9 TFMG, the fatigue life of 316L stainless * Guohua Cao [email protected] 1
School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2
steel has increased by 30 times [5]. ZrCuAlAg films deposited by magnetron sputtering present excellent glass forming ability (GFA), and coatings with copper and silver constituents show significantly antimicrobial properties [6]. On the other hand, TFMGs are intended to exhibit unique electrical performances, such as low electron scattering and minimal leakage. Unl
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