Results 91 to 100 of about 15,318,909 (286)

Effect of densification technology on the microstructure and mechanical properties of high-entropy (Ti, Zr, Hf, Nb, Ta)C ceramic-based cermets

Open Ceramics
High-entropy ceramic-based cermets represent a new and promising direction in improving the mechanical properties of conventional hardmetals through the formation of complex microstructures during synthesis. This has been systematically studied in two Co-
Dmytro Vedel, Tamás Csanádi, Petro Mazur, Anton Osipov, Juraj Szabó, Vladyslav Shyvaniuk, Richard Sedlák, Oleksandr Stasiuk, Veronika Kuchárová, Oleg Grigoriev   +9 more
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering

Solid-state reaction (SSR) is frequently used to fabricate bulk high-entropy ceramics (HECs). However, a high temperature and a long dwelling time are typically required to allow the occurrence of SSR. Meanwhile, conventional HECs were typically composed
Jiang, Fuqing,, Fu, Le,, Yu, Wenjun,, Xia, Wei,, Wang, Bohan,   +4 more
core   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

Advanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter, Elena Garcia Trelles, Christoph Schweizer, Thomas Seifert, Christoph Baumer, Mahmoud Elkady, Katja Feige, Daniel Grimme, Edgar Hoffmann, Andreas Waibel, Anke Walter   +10 more
wiley   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

High entropy silicate ceramic aerogels with excellent thermal stability up to 1600 °C and their fiber-reinforced composites for high temperature insulation

Journal of Advanced Ceramics
Ceramic aerogels have promising applications in extreme environments, such as aerospace, but are severely limited by the sintering-prone nature of nanounits at high temperatures.
Sisi Shang, Zhun Fan, Jing Fang, Man Yuan, Zihao Song, Wei Liu, Jian Yang, Sheng Cui   +7 more
doaj   +1 more source

High-entropy alloys - microstructures and properties

, 2015
There are relatively few revolutions in the venerable and rather staid field of metallurgy. One can count among them the advent of metallic glasses, of superplastic metals, of memory-alloys and - on the purely theoretical side - of quasicrystals.
Fisher, David J. 1947-
core  

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

First-principles calculations to investigate phonon dispersion, mechanical, elastic anisotropy and thermodynamic properties of an actinide-pnictide ceramic at high pressures/temperatures

Results in Physics
The actinide-pnictide ceramic materials have attracted great research attention owing to their fundamental and applied prospects in view of modern technological interest in materials engineering, ceramic and energy industry, and domestic usage.
M.H. Sahafi, Erfan Cholaki, Azmat Iqbal Bashir   +2 more
doaj   +1 more source

Processing and Characterization of Refractory Quaternary and Quinary High-Entropy Carbide Composite

Entropy, 2019
Quaternary high-entropy ceramic (HEC) composite was synthesized from HfC, Mo2C, TaC, and TiC in pulsed current processing. A high-entropy solid solution that contained all principal elements along with a minor amount of a Ta-rich phase was observed in ...
Hanzhu Zhang, Farid Akhtar
doaj   +1 more source