Investigation of the deposition conditions on the microstructure of TiZrCuPd nano-glass thin films

Mohri, Maryam; Wang, Di; Ivanisenko, Julia; Gleiter, H.; Hahn, Horst

doi:10.1016/j.matchar.2017.07.014

Cited by 25 publications

(9 citation statements)

References 28 publications

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“…Besides the common IGC followed by high pressure consolidation, an NG sample can also be prepared directly by using physical vapor deposition methods such as magnetron sputtering 31 , 64 . In this case, the resulting NG grown thin film produced has a columnar structure.…”

Section: Discussionmentioning

confidence: 99%

Excess free volume and structural properties of inert gas condensation synthesized nanoparticles based CuZr nanoglasses

Zheng

Yuan

Hahn

et al. 2021

Sci Rep

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Nanoglass (NG) as a new structure-tunable material has been investigated using both experiments and computational modeling. Experimentally, inert gas condensation (IGC) is commonly employed to prepare metallic glass (MG) nanoparticles that are consolidated using cold compression to generate an NG. In computational modeling, various methods have been used to generate NGs. However, due to the high computational cost involved, heretofore modeling investigations have not followed the experimental synthesis route. In this work, we use molecular dynamics simulations to generate an NG model by consolidating IGC-prepared Cu64Zr36 nanoparticles following a workflow similar to that of experiments. The resulting structure is compared with those of NGs produced following two alternative procedures previously used: direct generation employing Voronoi tessellation and consolidation of spherical nanoparticles carved from an MG sample. We focus on the characterization of the excess free volume and the Voronoi polyhedral statistics in order to identify and quantify contrasting features of the glass-glass interfaces in the three NG samples prepared using distinct methods. Results indicate that glass-glass interfaces in IGC-based NGs are thicker and display higher structural contrast with their parent MG structure. Nanoparticle-based methods display excess free volume exceeding 4%, in agreement with experiments. IGC-prepared nanoparticles, which display Cu segregation to their surfaces, generate the highest glass-glass interface excess free volume levels and the largest relative interface volume with excess free volume higher than 3%. Voronoi polyhedral analysis indicates a sharp drop in the full icosahedral motif fraction in the glass-glass interfaces in nanoparticle-based NG as compared to their parent MG.

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Section: Discussionmentioning

confidence: 99%

Excess free volume and structural properties of inert gas condensation synthesized nanoparticles based CuZr nanoglasses

Zheng

Yuan

Hahn

et al. 2021

Sci Rep

Self Cite

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“…Besides IGC method, nanoglass films have been recently synthesized by a variety of methods, such as magnetron sputtering [89][90][91][92], multiphase pulse electrodeposition [93], and the combination of electron beam and thermal evaporation [94].…”

Section: Preparation Of Nanostructured Glassesmentioning

confidence: 99%

“…and Brownian motion of the particles. Maryam Mohri et al[92] investigated the effect of deposition conditions on the microstructure and thermal stability of Ti-Zr-Cu-Pd nanoglass thin films. Nano-grained metallic glass Ti-Zr-Cu-Pd thin films were deposited at room temperature on Si substrate by using direct current (DC) magnetron sputtering…”

mentioning

confidence: 99%

Recent innovations in properties of nanostructured glasses and composites

Deepika¹,

Dixit

Singh

et al. 2021

Journal of Experimental Nanoscience

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The thrust to invent new materials and technology has been ever increasing due to technological challenges in progressive world. Among new materials, nanomaterials possess superior optical, electrical, magnetic, mechanical, and thermal properties, which have made them suitable for a multitude of applications. The present review paper deals with recent advances in properties of nanostructured glasses and composites in terms optical, electrical, mechanical and thermal properties. A brief discussion has been done on fabrication method of nanostructured glasses. The review of optical properties shows that nanostructured glasses show both direct and indirect band gap and this tuning of band gap depends on extent of nano structuring of samples. The electrical properties also show enhancement in electrical conductivity on nano-structuring of glasses compared to their bulk counterparts. The changes in mechanical and thermal properties of nanostructured glasses and composites are attributed to many microstructural features like grain size and shape, their distribution, pores and their distribution, other flaws/defects and their distribution, surface condition, impurity level, second phases/dopants, stress, duration of its application and temperature effect on the samples. Literature reports that nano structuring leads to enhanced phonon boundary scattering which reduces the thermal conductivity.

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“…Thus, the formation of MG systems can be attributed to the careful selection of the materials along with a fabrication route to achieve the required cooling rate. The commonly known fabrication (rapid solidification and casting) routes of the MG are usually liquid to the solid transition process, which requires a higher cooling rate to circumvent the crystalline phase . The requirement of very high cooling rate restricts the large‐scale production of the polytetrahedral structures, which are known as the cornerstone of forming materials with disordered structure .…”

Section: Introductionmentioning

confidence: 99%

Combinatorial Development and In Vitro Characterization of the Quaternary Zr–Ti–X–Y (X–Y = Cu–Ag/Co–Ni) Metallic Glass for Prospective Bioimplants

et al. 2019

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The prospect of Zr‐based metallic glasses (MGs) in achieving a combination of properties, such as excellent electrochemical properties and extended biocompatibility, has been studied in this work. The combinatorial method (magnetron co‐sputtering) has been adopted to fabricate two novel quaternary MG systems (Zr50Ti32Cu13Ag5 and Zr40Ti37Co12Ni11) with optimized compositions. The structural analysis has been performed by the grazing incidence x‐ray diffraction and high‐resolution transmission electron microscopy to affirm the disordered structure of the MG systems. The electrochemical analysis demonstrates lower corrosion‐ (0.10 and 0.04 μA cm−2), and passive (2.93 and 1.88 μA cm−2) current densities of the MGs. In addition, the MGs are found to have higher charge transfer resistance (4.70 and 7.86 MΩ cm2) compared to the 316L stainless steel (SS) (0.15 MΩ cm2) and cp‐Ti (0.53 MΩ cm2). The electrochemical features are indicative towards higher corrosion‐resistance capabilities of Zr50Ti32Cu13Ag5 and Zr40Ti37Co12Ni11 MGs to prevent adverse biological reactions. Additionally, the cell proliferation analysis manifests higher cell proliferation on the Zr50Ti32Cu13Ag5 and Zr40Ti37Co12Ni11 MGs for the MC3T3‐E1 preosteoblast cells. Besides, the MTS assay analysis strengthens the prediction of cytocompatibility of the MGs. The integration of such unique properties makes these MG systems ideal candidates for biomedical implants.

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Investigation of the deposition conditions on the microstructure of TiZrCuPd nano-glass thin films

Cited by 25 publications

References 28 publications

Excess free volume and structural properties of inert gas condensation synthesized nanoparticles based CuZr nanoglasses

Excess free volume and structural properties of inert gas condensation synthesized nanoparticles based CuZr nanoglasses

Recent innovations in properties of nanostructured glasses and composites

Combinatorial Development and In Vitro Characterization of the Quaternary Zr–Ti–X–Y (X–Y = Cu–Ag/Co–Ni) Metallic Glass for Prospective Bioimplants

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