Effects of Mg content and annealing treatment on optical and electrical properties of CuMg and ITO/CuMg metallic glass films

Lin, H.K.; Hong, Sunguk

doi:10.1016/j.jallcom.2017.09.273

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…Moreover, one-dimensional (1D) material-based systems, such as CNTs and metallic nanowires, can cause heterogeneous uniformity, which directly results in spatially nonuniform optical transparency and sheet resistance. − When 1D materials form a percolating network structure, the contact resistance at several 1D–1D interfaces becomes another issue, which leads to degradation in the electrical performance of the TCE . To avoid such issues, another approach is to improve the mechanical stability of ITO-based TCEs by incorporating a metallic interlayer (e.g., ZrCu, AgMg, AgZr, CuMg, and graphene). − Although the mechanical stability of ITO improves in the presence of metallic interlayers, the metallic layer compromises the optical transmittance of TCEs and the fabrication process becomes complicated.…”

Section: Introductionmentioning

confidence: 99%

Transparent Molecular Adhesive Enabling Mechanically Stable ITO Thin Films

Bok

Seok

Kim

et al. 2021

ACS Appl. Mater. Interfaces

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With rapid advances in flexible electronics, transparent conductive electrodes (TCEs) have also been significantly developed as alternatives to the conventional indium tin oxide (ITO)-based material systems that exhibit low mechanical flexibility. Nanomaterial-based alternating materials, such as graphene, nanowire, and nanomesh, exhibit remarkable properties for TCE-based applications, such as high electrical conductivity, high optical transparency, and high mechanical stability. However, these nanomaterial-based systems lack scalability, which is a key requirement for practical applications, and exhibit a size-dependent property variation and inhomogeneous surface uniformity that limit reliable properties over a large area. Here, we exploited a conventional ITObased material platform; however, we incorporated a transparent molecular adhesive, 4-aminopyridine (4-AP), to improve mechanical flexibility. While the presence of 4-AP barely affected optical transmittance and sheet resistance, it improved interfacial adhesion between the substrate and ITO as well as formed a wavy surface, which could improve the mechanical flexibility. Under various mechanical tests, ITO/4-AP/poly(ethylene terephthalate) (PET) exhibited remarkably improved mechanical flexibility as compared with that of ITO/PET. Furthermore, ITO/4-AP/PET was utilized for a flexible Joule heater application having spatial uniformity of heat generation, voltage-dependent temperature control, and mechanical flexibility under repeated bending tests. This molecular adhesive could overcome the current limitations of material systems for flexible electronics.

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Section: Introductionmentioning

confidence: 99%

Transparent Molecular Adhesive Enabling Mechanically Stable ITO Thin Films

Bok

Seok

Kim

et al. 2021

ACS Appl. Mater. Interfaces

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“…However, there are a few specific research papers on the usefulness of the alloys with wt.% of Mg over 1%. There are of course scientific papers on specific properties of higher Mg content like optical and electrical properties of thin metallic glass films in [27], however, there is a knowledge gap, which concerns the metallurgical synthesis and continuous casting of two-phase copper magnesium alloys, thus making it necessary to clarify the specific parameters of these processes which were conducted throughout this research and collectively presented in this research paper.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Continuous Casting Conditions on the Properties of High-Strength Two-Phase CuMg Alloys

et al. 2020

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Constant tendency toward the improvement of the material properties nowadays creates opportunities for the scientists all over the world to design and manufacture new alloys almost every day. Considering the fact that companies all over the world desire alloys with the highest values of mechanical properties often coexisting with a reasonable electrical conductivity made it necessary to develop new materials based on Cu, such as CuMg alloys. However, before such new material may be mass produced it must undergo a series of tests in order to determine the production technology, its parameters and influence on the chemical composition, microstructural properties, and both mechanical and physical properties of CuMg alloys. The research tests have shown that with the increase of the casting feed the Brinell’s hardness of each material slightly increases (by 5 HB2.5/62.5). There is little to none impact of the casting feed on the electrical conductivity, values of which are between 20.6 and 21.4 MS/m (around 40% IACS-International Annealed Copper Standard) depending on the Mg content. The conducted scanning electron microstopy (SEM) analysis has shown that the magnesium precipitations are evenly distributed among the volume of the alloy, however, a significant difference in the density and shape of the Cu + Cu2Mg aggregates was noticed regarding various casting feed. Static compression test proved that these alloys may be subjected to strain hardening as the hardness of the material after compression increases by approximately 40 HB2.5/62.5.

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“…

mechanical alloying (MA) [2-5], plasma spraying [6], sputtering [7], or melt spinning [8] have been shown to produce this type of materials.Unlike traditional crystalline alloys, amorphous metals have a homogeneous composition and a short-to-medium range order. That is why they have excellent mechanical [9][10][11], optical [12], and chemical [13,14] properties. Due to their unique properties, amorphous metals have been investigated as promising candidates in multiple applications such as sporting goods [15], jewellery and watchmaking industries [16], optical components [17], magnetic cores for transformers [18], high-speed motor parts [19], pressure sensors [20], surface coating materials [21], knives for ophthalmology [22], nerve tissue regeneration application [23] and many others.

…”

mentioning

confidence: 99%

Amorphous Phase Formation and Heat Treating Evolution in Mechanically Alloyed Ti–Cu Alloy for Biomedical Applications

Urban

Astacio

Fernández

et al. 2022

Trans Indian Inst Met

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The present work aims to produce TixCu100-x (x = 90, 80, 70, and 60) amorphous alloys by using high energy ball mill. The microstructure and possible formation of amorphous phases were characterized employing laser granulometry, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The amorphous-crystalline transformation at high temperatures was studied according to differential scanning calorimetry (DSC) and XRD. The Ti80Cu20 alloys were obtained in an amorphous state after 30 h of mechanical alloying, and the amorphous phase is stable up to 340 °C. At higher temperatures, this alloy crystallizes, forming the intermetallic compound Ti2Cu, and a substitutional solid solution Ti(Cu).

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Effects of Mg content and annealing treatment on optical and electrical properties of CuMg and ITO/CuMg metallic glass films

Cited by 10 publications

References 31 publications

Transparent Molecular Adhesive Enabling Mechanically Stable ITO Thin Films

Transparent Molecular Adhesive Enabling Mechanically Stable ITO Thin Films

The Influence of the Continuous Casting Conditions on the Properties of High-Strength Two-Phase CuMg Alloys

Amorphous Phase Formation and Heat Treating Evolution in Mechanically Alloyed Ti–Cu Alloy for Biomedical Applications

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