Results 71 to 80 of about 166,949 (328)

Fabrication and characterization of high entropy pyrochlore ceramics

Boletín de la Sociedad Española de Cerámica y Vidrio, 2023
High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate ...
Branko Matović, Dejan Zagorac, Ivana Cvijović-Alagić, Jelena Zagorac, Svetlana Butulija, Jelena Erčić, Ondrej Hanzel, Richard Sedlák, Maksym Lisnichuk, Peter Tatarko   +9 more
doaj   +1 more source

Investigation of the thermal expansion and heat capacity of the CaCu3Ti4O12 ceramics [PDF]

, 2012
The thermal expansion of the CaCu3Ti4O12 ceramics has been measured over a wide temperature range 120–1200 K. The high quality of the samples under study has been confirmed by good agreement of the results of measurements of the heat capacity in the ...
A. A. Levchenko, A. Koitzsch, A. Onodera, A. Onodera, A. Onodera, A. P. Ramirez, A. R. West, A. V. Kartashev, C. P. Sun, D. C. Sinclair, E. S. Božin, G. Deng, I. N. Flerov, I. Tsukada, J. Li, K. Kawatani, K. T. Jacob, L. Fang, M. A. Subramanian, M. E. Cohen, M. V. Gorev, S. Guillemet-Fritsch, S. Guillemet-Fritsch, S. M. Moussa, T. B. Adams, V. P. B. Marques   +25 more
core   +3 more sources

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

High-entropy engineering improved the corrosion resistance of rare earth tantalates

Journal of Materials Research and Technology
High-entropy RETa3O9 ceramics have garnered significant interest in materials science due to their impressive high melting points and lower thermal conductivity.
Kunhui Yang, Liujia Tian, Yiling Huang, Xuemei Song, Fan Peng, Wei Zheng, Ziwei Liu, Yi Zeng   +7 more
doaj   +1 more source

Low-temperature densification of high-entropy (Ti,Zr,Nb,Ta,Mo)C—Co composites with high hardness and high toughness

Journal of Advanced Ceramics, 2022
In order to prepare high toughness (Ti,Zr,Nb,Ta,Mo)C ceramics at low temperatures while maintaining high hardness, a liquid-phase sintering process combined with Co-based liquid-phase extrusion strategy was adopted in this study.
Si-Chun Luo, Wei-Ming Guo, Kevin Plucknett, Hua-Tay Lin   +3 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

First-principles study, fabrication and characterization of (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramics

Acta Materialia, 2019
The formation possibility of a new (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramics (ZHC-1) was first analyzed by the first-principles calculations and thermodynamical analysis and then it was successfully fabricated by hot pressing sintering technique ...
Beilin Ye, T. Wen, Manh Cuong Nguyen, Luyao Hao, Caizhuang Wang, Yanhui Chu   +5 more
semanticscholar   +1 more source

Automated computation of materials properties

, 2018
Materials informatics offers a promising pathway towards rational materials design, replacing the current trial-and-error approach and accelerating the development of new functional materials.
Agapito L.A., Ashcroft N.W., Carrete J., Daams J.L.C., Frisch M.J., Hahn T., Hart G.L.W., Leibfried G., Maradudin A.A., Nye J.F., Scheffler M., Schroers J., Villars P.   +12 more
core   +1 more source

A density functional study of the high-pressure chemistry of MSiN2(M = Be,Mg, Ca) [PDF]

, 2009
Normal pressure modifications and tentative high-pressure phases of the nitridosilicates MSiN2 with M = Be, Mg, or Ca have been thoroughly studied by density functional methods.
Kroll, Peter, Römer, Rebecca, Schnick, Wolfgang   +2 more
core   +1 more source

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

Advanced Engineering Materials, EarlyView.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja, Daniel Sebastian Wolz, Philip Johannes Steinbild, Markus Löffler, Darius Pohl, Jan Wolf, Anja Winkler, Thomas Behnisch, Bernd Rellinghaus, Maik Gude   +9 more
wiley   +1 more source