Effect of Hf substitution Cu on glass-forming ability, mechanical properties and corrosion resistance of Ni-free Zr–Ti–Cu–Al bulk metallic glasses

Jin, Z.S.; Yue, Yang; Zhang, Z.P.; Ma, Xiaocong; Lv, Jingwang; Wang, F.L.; Ma, Mingzhen; Zhang, X.Y.; Liu, R.P.

doi:10.1016/j.jallcom.2019.07.240

Cited by 44 publications

(9 citation statements)

References 46 publications

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“…1 shows that there is no sign of unreacted do-pants or secondary phase formation with doping of Gadolinium (Gd 3+ ) to ceria. The XRD pattern is identical with the cubic fluorite structure of ceria lattice 9 . The scanning electron micrographs of Pure and sintered 20 GDC at 1400 o C were presented in Fig.…”

Section: Methodssupporting

confidence: 55%

“…In the present investigation, nano-crystalline ceria powders 20 mol% of gadolinium (Ce 0.8 Gd 0.2 O 2-δ ) were synthesized by a modified sol-gel technique featuring a nitrate-fuel exothermic reaction 9 . GDC pellets were prepared from powders and sintered at 1400°C for 2 hours at a heating rate being 2°C/minute and cooling rate was 5°C/minute.…”

Section: Methodsmentioning

confidence: 99%

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TEMPERATURE DEPENDENCE DIELECTRIC BEHAVIOUR OF 20GDC (CE0.8GD0.2O2-δ) EFFECT FOR SOLID OXIDE FUEL CELL APPLICATION

Koteswararao¹,

Vasubabu²,

Suresh³

et al. 2019

RJC

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In the present investigation 20GDC (Ce 0.8 Gd 0.2 O 2-δ ), nano powder was synthesized from the sol-gel method. The nano powders were sintered at 1400 o C for 2hours by converting into pellets. The density of sintered pellets measured from the Archimedes method was found to be around 96%. XRD of 20GDC powder and sintered pellets shown were in cubic fluorite structure. Morphology of 20GDC powder was sintered pellets by using SEM. Grain size was measured from the linear intercept method. Dielectric properties (AC conductivity, Dielectric constant and loss tangent) were measured for 20 GDC samples using Solatron Impedance analyzer with temperatures ranging from 300 o C to 800 o C and with a variation of frequency from 1 KHz to 1MHz.

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Section: Methodssupporting

confidence: 55%

Section: Methodsmentioning

confidence: 99%

TEMPERATURE DEPENDENCE DIELECTRIC BEHAVIOUR OF 20GDC (CE0.8GD0.2O2-δ) EFFECT FOR SOLID OXIDE FUEL CELL APPLICATION

Koteswararao¹,

Vasubabu²,

Suresh³

et al. 2019

RJC

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“…It was also found that the hydrogen microalloying activated soft spots and improved structural heterogeneity, leading to the promotion of multiple shear bands [15]. Jin et al [16] demonstrated that partial substitution of Hf with Cu enhanced the compressive yield strength with a large plastic strain. Cao et al [17] reported that minor element addition with positive heat of mixing into a ZrCuAl amorphous alloy not only improved the glass formation but also induced homogenous plastic deformation.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Minor Element Addition on the Structural Heterogeneity and Mechanical Properties of ZrCuAl Bulk Metallic Glasses

Sivaraman

Patra

Najm³

et al. 2022

Advances in Materials Science and Engineering

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The present study reveals the role of Nb and Ni minor addition on the nanomechanical properties and nanostructure of ZrCuAl bulk metallic glass (BMG). For this purpose, atomic force microscopy (AFM) was used to evaluate the viscoelastic response of the BMG surface at the nanoscale, while the nanoindentation technique was applied to show the mechanism of plastic deformation. The results indicated that minor Nb addition decreased the relaxation of enthalpy accompanied by the weakening of structural heterogeneity. On the other hand, Ni addition improved the stored energy of the material and intensified the distribution of loosely packed regions in the microstructure. Moreover, the mechanical test unveiled that Ni addition enhanced the viscoelastic response; however, it came at the expense of creep resistance. The evaluation of the magnitude of the derivative in the nanoindentation test also demonstrated that the Ni-added sample exhibited a multiple shear-band mode for plastic deformation.

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“…Zr-based bulk metallic glasses (BMGs) are considered to possess a widely utilized future as excellent structural materials in consumer electronics for their extraordinary fracture strengths, corrosion, and wear resistance [ 1 , 2 , 3 , 4 ]. In addition, the good glass-forming ability (GFA) of Zr-based BMGs allows thermoforming production above their glass transition temperature ( T g ) [ 5 , 6 , 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ho Addition on the Glass-Forming Ability and Crystallization Behaviors of Zr54Cu29Al10Ni7 Bulk Metallic Glass

Liang

et al. 2022

Materials

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The effect of holmium (Ho) addition on the glass-forming ability (GFA) and crystallization behaviors of Zr54Cu29Al10Ni7 bulk metallic glass (BMGs) were studied by employing differential scanning calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The characteristic temperatures and activation energies of crystallization were obtained from DSC data. Classical kinetic modes were used to evaluate the crystallization processes of Zr54Cu29Al10Ni7 and Zr48Cu29Ni7Al10Ho6 BMGs. The results showed that Ho addition reduces the activation energy in the original crystallization period of Zr-based BMG and improves the nucleation, which is due to the formation of simpler compounds, such as CuZr2, Cu2Ho, and Al3Zr5.

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Effect of Hf substitution Cu on glass-forming ability, mechanical properties and corrosion resistance of Ni-free Zr–Ti–Cu–Al bulk metallic glasses

Cited by 44 publications

References 46 publications

TEMPERATURE DEPENDENCE DIELECTRIC BEHAVIOUR OF 20GDC (CE0.8GD0.2O2-δ) EFFECT FOR SOLID OXIDE FUEL CELL APPLICATION

TEMPERATURE DEPENDENCE DIELECTRIC BEHAVIOUR OF 20GDC (CE0.8GD0.2O2-δ) EFFECT FOR SOLID OXIDE FUEL CELL APPLICATION

The Effects of Minor Element Addition on the Structural Heterogeneity and Mechanical Properties of ZrCuAl Bulk Metallic Glasses

Effect of Ho Addition on the Glass-Forming Ability and Crystallization Behaviors of Zr54Cu29Al10Ni7 Bulk Metallic Glass

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