Cu particulate dispersed Cu50Zr45Al5 bulk metallic glassy composite with enhanced electrical conductivity

Xie, Guoqiang; Louzguine-Luzgin, Dmitri V.; Fukuhara, Mikio; Kimura, Hisamichi; Inoue, Akihisa

doi:10.1016/j.intermet.2010.02.043

Cited by 21 publications

(5 citation statements)

References 29 publications

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“…[25][26][27] Figure 8 shows the changes of the electrical resistivity as a function of Au content for Au x Si 17 Cu 75.5-x Ag 7.5 (x = 50 to 70) metallic glasses. The electrical resistivities of the Au-based alloys are of the same order as those of other typical metallic glasses, [28][29][30] because the electrical resistivity mainly results from their intrinsic disordered structures. The values of electrical resistivity increase almost linearly from 126 to 187 lX cm with increasing x from 50 to 70.…”

Section: B Glass-forming Abilitymentioning

confidence: 84%

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Effect of Au Content on Thermal Stability and Mechanical Properties of Au-Cu-Ag-Si Bulk Metallic Glasses

Guo

Zhang

Chen

et al. 2010

Metall Mater Trans A

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The thermal stability, glass-forming ability (GFA), and mechanical and electrical properties of Au-based Au x Si 17 Cu 75.5-x Ag 7.5 (x = 40 to 75.5 at. pct) metallic glasses were investigated. The glass transition temperature (T g ) and crystallization temperature (T x ) decreased with increasing Au content. The ultralow T g values below 373 K (100°C) were obtained for alloys with x = 55 to 75.5. The alloys with x = 45 to 70 exhibited a high stabilization of supercooled liquid and a high GFA, and the supercooled liquid region and critical sample diameter for glass formation were in the range of 31 K to 50 K and 2 to 5 mm, respectively. The compressive fracture strength (r c,f ), Young's modulus (E), and Vicker's hardness (H v ) of the bulk metallic glasses (BMGs) decreased with increasing Au content. A linear correlation between Au concentration and the characteristic temperature, i.e., T g and T x , and mechanical properties, i.e., r c,f , E, and H v , as well as electrical resistivity can be found in the BMGs, which will be helpful for the composition design of the desirable Au-based BMGs with tunable physical properties.

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Section: B Glass-forming Abilitymentioning

confidence: 84%

“…[28] Fe 70 Ni 10 P 14 B 6 , [29] and Pd 40 Ni 40 P 20 [30] metallic glasses are shown for comparison.…”

Section: Acknowledgmentmentioning

confidence: 99%

Effect of Au Content on Thermal Stability and Mechanical Properties of Au-Cu-Ag-Si Bulk Metallic Glasses

Guo

Zhang

Chen

et al. 2010

Metall Mater Trans A

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“…The good bonding between the Cu particulates and the glassy matrix was presented. No appreciable contrast revealing the formation of other crystalline phase in the glassy matrix was observed, except for the Cu particulates [21,22].…”

Section: Consolidation Of the Mixed Powders By Spark Plasma Sinteringmentioning

confidence: 91%

Cu Particulates Dispersed Bulk Metallic Glass Composites with High Strength and High Electrical Conductivity Fabricated by Spark Plasma Sintering

Xie

Qin

Kimura

2014

MSF

Self Cite

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Using the mixed powders containing gas-atomized powders of metallic glassy alloys (Cu50Zr45Al5, Fe73Si7B17Nb3, Ni52.5Nb10Zr15Ti15Pt7.5) blended with high-conductive Cu particulates, we produced bulk metallic glassy alloy composites with high strength and high electrical conductivity, as well as with enhanced plasticity and satisfying large size requirements by a spark plasma sintering process. In this paper we present and review our research results on the fabrication and properties of the bulk glassy alloy composites by the spark plasma sintering process.

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“…The highest hardness of 1341 HV was obtained at the sintering temperature of 550°C. Other researchers have used casting and atomising powder, followed by sintering by the SPS process to produce parts with an amorphous structure for Zr, Cu, Mg and Ti-based alloys [21][22][23][24]. It has been reported that relatively low hardness and poor corrosion resistance of iron-based alloys are factors, which limit their use.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterisation of a novel Fe-based nanocomposite by mechanical alloying and spark plasma sintering

2021

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To improve low hardness and poor corrosion resistance of the Fe-based alloys, Fe-Ti-Al-B-Si-C-P-Cr novel alloy was prepared using mechanical alloying and spark plasma sintering (SPS). Two types of mills, including of high-energy planetary (HEP) and SPEX(S) ball mills (BM) were used to reach the solid solution. Mechanical alloying by the HEP route led to the formation of the Fe(α) phase after 60 h, while its milling after 15 h by high-energy SPEX mill led to the formation of the Fe(α) solid solution. After sintering of as-milled powders by SPS, the composite of Fe (α)/nanocrystalline was obtained. The micro-hardness of the HEP-SPS and the S-SPS samples obtained about 689.5 ± 0.15 and 2068.5 ± 0.18 HV 0.3 , respectively. The lowest corrosion current density and the highest polarization resistance were related to the HEP-SPS sample and was calculated to be 0.51 µA/cm 2 and 41.668 KHz/cm 2 , respectively.

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Cu particulate dispersed Cu50Zr45Al5 bulk metallic glassy composite with enhanced electrical conductivity

Cited by 21 publications

References 29 publications

Effect of Au Content on Thermal Stability and Mechanical Properties of Au-Cu-Ag-Si Bulk Metallic Glasses

Effect of Au Content on Thermal Stability and Mechanical Properties of Au-Cu-Ag-Si Bulk Metallic Glasses

Cu Particulates Dispersed Bulk Metallic Glass Composites with High Strength and High Electrical Conductivity Fabricated by Spark Plasma Sintering

Synthesis and characterisation of a novel Fe-based nanocomposite by mechanical alloying and spark plasma sintering

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