Article
Materials Science, Ceramics
Alessio Zandona, Marine Moustrous, Cecile Genevois, Emmanuel Veron, Aurelien Canizares, Mathieu Allix
Summary: Containerless melting was used to evaluate the influence of increasing ZrO2 on the glass-forming ability of peraluminous melts. The role of Al2O3 in structurally incorporating ZrO2 in silicate melts was identified.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Y. Ohashi, T. Wada, H. Kato
Summary: The glass-forming ability of Zr-Cu-based metallic glass with high entropy was investigated by adding elements such as Ag, Hf, and Ni. The study found that the addition of elements created new competitive liquid crystalline phases and improved the glass-forming ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Weihuo Li, Ying Huang, Qiang Wang, Xu Zhou, Ding Ding, Lei Xia
Summary: This paper investigates the glass-forming ability and magnetic properties of Tb65Ni35-xCox amorphous ribbons. The T-rg and gamma of the ribbons reach their maximum when x = 20, indicating the optimal glass-forming ability of the Tb65Ni15Co20 amorphous alloy. The amorphous alloy exhibits a Curie temperature of approximately 79 K and shows typical spin-glass-like behavior. The magnetic entropy change peak value is up to 9.47 J kg(-1) K-1 under 5 T.
Article
Materials Science, Ceramics
Yuanyuan Wang, Zhengwang Zhu, Aimin Wang, Haifeng Zhang
Summary: This study investigates the thermodynamics and kinetics of a non-equiatomic high entropy metallic glass (HEMG) with a critical size for glass formation over 50 mm. The research finds that the HEMG has the lowest thermodynamic driving force against crystalline phase formation and exhibits ultrastrong behavior near the glass transition. The alloy also has a higher fragility index compared to typical metallic glass formers reported so far.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Lukasz Szczepanski, Markus Bambach, Felix Jensch, Andrzej Ambroziak, Tomasz Kurzynowski
Summary: In recent years, Fe-based metallic glasses have been extensively researched for their favorable mechanical and magnetic properties. Breakthroughs have been made in producing these materials in Laser Powder Bed Fusion technology, allowing the production of elements of any shape. The microstructure of the manufactured parts plays a crucial role in determining their properties.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Z. Mollaei, F. Kermani, M. Kahani, F. Moosavi, S. Mollazadeh, J. Vahdati Khaki
Summary: The current study proposes new input data for glass science and engineering based on simple calculations of configurational entropy. The configurational entropy of silicate-based glasses with different amounts of alkali or alkaline earth oxide additives was calculated, and the relation between entropy and glass properties was theoretically investigated. The results revealed positive or negative slopes in the entropy-Tg curves for different glass compositions, which could be attributed to changing concentrations of non-bridging oxygens, increasing entropy, and changing melting points.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ji Wang, Tianfei Cao, Heng Kang, Bingtao Wang, Ruofan Wang, Yanqin Gao, Lina Hu, Junqiang Wang, Juntao Huo, Shidong Feng, Zijing Li, Li-Min Wang
Summary: So far, there is no consensus on the roles of melting entropy in glass formation. A study on three compositions of pseudo-binary alloys revealed that low melting entropy and high melting viscosity facilitate glass formation. This study suggests that melting entropy should be considered as a crucial reference for designing metallic glasses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Tinghong Gao, Yong Ma, Yutao Liu, Qian Chen, Yongchao Liang, Quan Xie, Qingquan Xiao
Summary: Scientists collected data, employed machine learning algorithms, and used interpretative models to study the relationship between glass forming ability and properties of metallic glasses, providing insights for the discovery of novel metallic glasses.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Ceramics
Ji Wang, Zhengqing Cai, Qi Qiao, Heng Kang, Shidong Feng, Yanhui Zhang, Zijing Li, Li-Min Wang
Summary: A new design strategy of metallic glasses using melting entropy as a guide for compositions is proposed in this study, where intermetallic compounds can be considered as starting materials. The strategy based on melting entropy is verified through detailed studies on Cu-Zr-Hf alloys. By triggering metallic glass design with intermetallic compounds, the traditional cognition of excluding intermetallic compounds in glass formation compositions is challenged, reinforcing the viewpoint that low melting entropy promotes glass formation. This new strategy provides a highly targeted approach to search for starting materials in glass design, distinct from the trial-and-error mode. It also offers a new perspective for understanding the mechanism of glass formation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Syed Ghazi Sarwat, K. R. Ravi
Summary: Most liquids crystallize when cooled, but this process can be obstructed if the cooling rate exceeds a critical value. The study in this communication investigates whether the atomic interactions in the liquid state can be a valid measure of a material's glass-forming ability using CALPHAD.
Article
Chemistry, Physical
JiaXin Peng, BenZhen Tang, Qiang Wang, Cheng Bai, Yong Wu, QiXin Chen, DongMei Li, Ding Ding, Lei Xia, XiaoLong Guo, Peng Yu
Summary: By adding rare-earth elements to the Fe89Zr7B4 ternary amorphous alloy, the magnetic refrigeration capacity was improved, and potential amorphous composites with different temperature magnetic entropy change curves were designed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Thermodynamics
L. Lyubenova, V. Rangelova, M. Spassova, T. Spassov
Summary: A series of Zr-based glasses were obtained by rapid melt quenching and their thermal characteristics were determined. Glass forming ability criteria were applied to predict the glass forming ability of the alloys and study its dependence on the alloy composition. The variation in the glass forming ability was mainly due to difficulties in the crystallization process rather than the stability of the melts.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Yimeng Zhao, Xuan Li, Xiaobin Liu, Jiazi Bi, Yang Wu, Ruijuan Xiao, Ran Li, Tao Zhang
Summary: The development of Co-Ta-B-Si bulk metallic glasses with high glass-transition temperature, large compressive plasticity, high strength, and high glass-forming ability was achieved by accurately tuning the metalloid element contents of Si and B in the parental alloy. The improvement in plastic deformation was attributed to the self-organization behaviors of high-density shear bands.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Chengcheng Liu, Xuandong Wang, Weidong Cai, Yazhou He, Hang Su
Summary: In this paper, a machine learning-based predictive model was established to predict the glass-forming ability (GFA) of metallic glasses (MGs) using experimental data. The model achieved high accuracy in predicting the glass state formation and the temperatures related to MGs. Additionally, feature selection and visualization analysis methods were used to improve the interpretability of the model. Finally, a genetic algorithm was applied to optimize alloy composition for high GFA.
Article
Chemistry, Physical
W. Porter Weeks, Katharine M. Flores
Summary: Researchers have used geometric alignment and density-based clustering algorithms to quantitatively describe the short-range atomic structure in the liquid state of five metallic glass-forming systems. They found that each liquid is composed of geometrically-similar atomic clusters, and the distribution of these clusters is inversely correlated to the glass-forming ability observed experimentally.