Preparation of bulk metallic glasses by modifying local structure of icosahedral quasicrystals

Li, Zijing; Pan, Shaopeng; Zhang, Suhong; Feng, Shidong; Li, Maozhi; Liu, Riping; Tian, Yongjun; Wang, Limin

doi:10.1016/j.intermet.2019.03.007

Cited by 8 publications

(3 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figures 1(c quasi-crystals are the main competing phase against noncrystals, higher difficulty in crystallization of quasi-crystals indicates a higher glass formability. This result was in line with the earlier reported study [30] in that, with the increased Be content, the critical glassy size increases from 2 mm for the alloy Be20%, to 15 mm for the alloy Be24%, to the peak value of 20 mm for the alloy Be28%, and then drops to 12 mm for alloy Be32%.…”

Section: Experimental Worksupporting

confidence: 93%

“…As described in our earlier studies, [30] homogeneous ingots of (Zr 40 Ti 40 Ni 20 ) 100−x Be x (x = 0, 20, 24, 28, 32) were prepared by melting mixtures of high-purity elements (>99.9 wt%) five times under an Ar atmosphere in an arc-melting furnace. The copper mold suction casting method was used to prepare alloy rods with different sizes.…”

Section: Experimental Workmentioning

confidence: 99%

See 1 more Smart Citation

A group of ductile metallic glasses prepared by modifying local structure of icosahedral quasicrystals

et al. 2023

View full text Add to dashboard Cite

Inspired by researches into the association between icosahedral local orders and the plasticity of metallic glasses (MGs), beryllium (Be) was added to the icosahedral quasi-crystal forming alloy Zr40Ti40Ni20. In this way, bulk metallic glasses (BMGs) with favorable compressive plasticity were fabricated. Therein, the icosahedral quasi-crystalline phase is the main competing phase of amorphous phases and icosahedral local orders are one of the main local atomic motifs in amorphous phases. The alloys of (Zr40Ti40Ni20)76Be24 and (Zr40Ti40Ni20)72Be28 with their greater plastic strain capacity show similar characteristics to highly-plastic amorphous systems: the serrated flow of compression curves always follows a near-exponential distribution; the primary and secondary shear bands intersect each other, bifurcate, and bend; typical vein patterns are densely distributed on the fracture surfaces. The relaxation enthalpy of four MGs is linearly correlated with the plastic strain, that is, the greater the relaxation enthalpy, the larger the plastic strain.

show abstract

Section: Experimental Worksupporting

confidence: 93%

Section: Experimental Workmentioning

confidence: 99%

A group of ductile metallic glasses prepared by modifying local structure of icosahedral quasicrystals

et al. 2023

View full text Add to dashboard Cite

show abstract

“…[ 53 ] Moreover, based on the metallic compounds of low Δ S m , glassy materials have been successfully designed and prepared such as a semiconductor glass of Ga 2 Te 3 ‐SnTe [ 54 ] and bulk metallic glasses of (Zr 40 Ti 40 Ni 20 ) 100‐x Be x . [ 55 ] Theoretically, the Gibbs free energy difference Δ G l‐s between liquid and solid phases is associated with glass formation due to its nature of the crystallization driving force. Δ G l‐s can be expressed in terms of [ 13 ] Δ G l − s = Δ S m Δ T + f (Δ T ), where Δ T is the degree of supercooling relative to T m , and f (Δ T ) is the higher‐order function.…”

Section: Discussionmentioning

confidence: 99%

New Interpretation of Glass Formation in Isomeric Substances: Shifting from Melting‐Point to Melting‐Entropy

Ren

Zhang

et al. 2023

Advanced Science

Self Cite

View full text Add to dashboard Cite

Revealing the critical thermodynamic parameters determining the glass formation of substances is of great significance for understanding the glass transition and guiding the composition design of glass‐forming materials. Nevertheless, the direct access to glass‐forming ability (GFA) by thermodynamics for various substances remains to be substantiated. The strategy to seek the fundamental properties of glass formation is explored several decades ago, as pioneered by Angell, arguing that the GFA in isomeric xylenes depends on the low lattice energy manifested by the low melting point. Here, an in‐depth study is advanced using two more isomeric systems. Surprisingly, the results do not constantly support the reported relationship between the melting point and glass formation among isomeric molecules. Instead, molecules with enhanced glass formability are featured by the properties of low melting entropy without exception. Comprehensive studies of isomeric molecules find that the low melting entropy is roughly accompanied by the low melting point, explaining the apparent link between melting point and glass formation. Progressively, the viscosity measurements of the isomers uncover a strong dependence of the melting viscosity on melting entropy. These results emphasize the significance of the melting entropy in governing the glass formability of substances.

show abstract

Kinetics and in situ observation of nonisothermal crystallization in Bayan Obo tailing-based nanocrystalline glass-ceramic

Bai

Yang

Zhao

2021

Ceramics International

View full text Add to dashboard Cite

Preparation of bulk metallic glasses by modifying local structure of icosahedral quasicrystals

Cited by 8 publications

References 70 publications

A group of ductile metallic glasses prepared by modifying local structure of icosahedral quasicrystals

A group of ductile metallic glasses prepared by modifying local structure of icosahedral quasicrystals

New Interpretation of Glass Formation in Isomeric Substances: Shifting from Melting‐Point to Melting‐Entropy

Kinetics and in situ observation of nonisothermal crystallization in Bayan Obo tailing-based nanocrystalline glass-ceramic

Contact Info

Product

Resources

About