Results 11 to 20 of about 2,066 (185)

How to avoid FIB-milling artefacts in micro fracture? A new geometry for interface fracture [PDF]

, 2023
Focused ion beam (FIB) based small-scale fracture studies have been well established in recent years despite the ongoing discussion of possible artefacts caused by FIB milling. Stable crack growth geometries—where the FIB-prepared notch stably propagates
Brinckmann, Steffen, Kirchlechner, Christoph, Lee, Subin, Okotete, Eloho   +3 more
core   +2 more sources

Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs)

Journal of Advanced Ceramics, 2022
Electronic devices pervade everyday life, which has triggered severe electromagnetic (EM) wave pollution. To face this challenge, developing EM wave absorbers with ultra-broadband absorption capacity is critically required.
Weiming Zhang, Huimin Xiang, Fu-Zhi Dai, Biao Zhao, Shijiang Wu, Yanchun Zhou   +5 more
doaj   +1 more source

Theoretical Investigation of Effects of Transition Elements on Phase Stabilities and Elastic Properties of the γ′ Phase in Co–V–Ta Superalloys

Frontiers in Materials, 2022
In order to improve the thermal stability and mechanical properties of W-free light-weight Co–V–Ta-based superalloys, the effects of alloying elements including Sc, Ti, Cr, Mn, Fe, Ni, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Hf, W, Re, Os, Ir, and Pt on γ′-Co3(V,
Youheng Chen, Cuiping Wang, Cuiping Wang, Chi Zhang, Chen Yang, Jiajia Han, Jiajia Han, Xingjun Liu, Xingjun Liu, Xingjun Liu   +9 more
doaj   +1 more source

Properties of high entropy borides synthesized via microwave-induced plasma

APL Materials, 2022
Microwave-induced plasma was used to anneal precursor powders containing five metal oxides with carbon and boron carbide as reducing agents, resulting in high entropy boride ceramics.
Bria Storr, Luke Moore, Kallol Chakrabarty, Zaheeruddin Mohammed, Vijaya Rangari, Cheng-Chien Chen, Shane A. Catledge   +6 more
doaj   +1 more source

Computational property predictions of Ta–Nb–Hf–Zr high-entropy alloys

Scientific Reports, 2021
Refractory high entropy alloys (R-HEAs) are becoming prominent in recent years because of their properties and uses as high strength and high hardness materials for ambient and high temperature, aerospace and nuclear radiation tolerance applications ...
Shashank Mishra, Soumyadipta Maiti, Beena Rai   +2 more
doaj   +1 more source

Fabrication and Characterization of Quinary High Entropy-Ultra-High Temperature Diborides

Ceramics, 2021
Due to their inherent chemical complexity and their refractory nature, the obtainment of highly dense and single-phase high entropy (HE) diborides represents a very hard target to achieve.
Simone Barbarossa, Roberto Orrù, Valeria Cannillo, Antonio Iacomini, Sebastiano Garroni, Massimiliano Murgia, Giacomo Cao   +6 more
doaj   +1 more source

Unveiling the Transporting Mechanism of (Ti_0.2Zr_0.2Nb_0.2Hf_0.2Ta_0.2)C at Room Temperature

Crystals, 2023
High-entropy materials have been widely researched in recent years, and more work on their thermal and electrical properties is still needed. Herein, we fabricate a high-entropy carbide (Ti0.2Zr0.2Nb0.2Hf0.2Ta0.2)C ceramic and report the thermal and ...
Tao Liu, Liwen Lei, Jinyong Zhang, Neng Li   +3 more
doaj   +1 more source

Exploring alloying effect on phase stability and mechanical properties ofγ″-Ni3Nb precipitates with first-principles calculations

Materials & Design, 2020
The superior mechanical strength of Inconel 718 and similar Nb containing alloys mainly results from the ordered γ″-Ni3Nb precipitates. By employing first-principles calculations, we comprehensively investigate the effects of alloying elements (i.e., Sc,
Xiaoguo Gong, Wei-Wei Xu, Can Cui, Qiang Yu, Wei Wang, Tieqiang Gang, Lijie Chen   +6 more
doaj   +1 more source

Temperature-dependent elastic properties of binary and multicomponent high-entropy refractory carbides

Materials & Design, 2021
Available information concerning the elastic moduli of refractory carbides at temperatures (T) of relevance for practical applications is sparse and/or inconsistent.
D.G. Sangiovanni, F. Tasnádi, T. Harrington, M. Odén, K.S. Vecchio, I.A. Abrikosov   +5 more
doaj   +1 more source

Computational exploration of biomedical HfNbTaTiZr and Hf0.5Nb0.5Ta0.5Ti1.5Zr refractory high-entropy alloys

Materials Research Express, 2021
Refractory high entropy alloys (RHEAs) have been proven to be a potential candidate in the biomedical field due to their balanced mechanical properties and biocompatible composition.
Uttam Bhandari, Hamed Ghadimi, Congyan Zhang, Feng Gao, Shizhong Yang, Shengmin Guo   +5 more
doaj   +1 more source