Results 61 to 70 of about 6,918 (265)

Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides

Advanced Science, EarlyView.
This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim, Uchan Jeon, Hyeongwon Jeong, Bo‐Ram Won, Jeong Woo Han, Jae‐ha Myung   +5 more
wiley   +1 more source

Fabrication of SiC reinforced aluminium metal matrix composites through microwave sintering

Materials Research Express, 2020
In this study, SiC reinforced aluminum (Al) metal matrix composites were prepared by microwave sintering. The effects of SiC content, pressure and sintering temperature on the density, hardness and microstructure of the composites were investigated.
Jianhua Liu, Bo Zhou, Lei Xu, Zhaohui Han, Junwen Zhou   +4 more
doaj   +1 more source

Continuous Microwave Sintering of Ceramics

, 1994
The microwave sintering technology is still at the developmental stage due to the limitation of the volume (or size) and batch of the ceramic products that can be fabricated by microwave processing. The present paper introduces a new microwave processing
Lei Chen, Jiping Cheng, Jinyu Qiu, Dinesh K. Agrawal, Jian Zhou, Yunjin Zhang, Xuebing Dong, Yi Fang, Zhangguo Wan   +8 more
core   +1 more source

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

Advanced Science, EarlyView.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

A comparative study of structural and mechanical properties of Al–Cu composites prepared by vacuum and microwave sintering techniques

Journal of Materials Research and Technology, 2018
In this paper, the aluminum metal matrix composite reinforced with copper particulates (3, 6 and 9 vol.%) were fabricated by high energy ball milling, followed by vacuum sintering (VS) and microwave sintering techniques (MS) separately. The effects of Cu
Penchal Reddy Matli, Ubaid Fareeha, Rana Abdul Shakoor, Adel Mohamed Amer Mohamed   +3 more
doaj   +1 more source

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite [PDF]

Materials Research, 2015
Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) perovskite-type oxide is currently one of the most promising materials for applications in solid-oxide fuel cells (SOFCs), protonic ceramic fuel cells (PCFCs), oxygen separation membranes, and catalytic membranes for ...
Rafael Bianchini Nuernberg, Márcio Raymundo Morelli   +1 more
doaj   +2 more sources

Non‐Equilibrium Synthesis of Whitlockite Assisted by Localized H2O Vapor Pressure

Advanced Science, EarlyView.
A carbon substrate acts as a microheater during intense pulsed light irradiation, enabling rapid heating and cooling for whitlockite formation. In contrast to conventional white ceramic synthesis with weak photothermal response, this platform concentrates thermal energy locally and promotes phase‐selective crystallization under ultrafast ...
Min‐Jung Kim, Minwoo Lee, In‐Ho Jung, Seung‐Kyun Kang, Ji‐Soo Jang, Hyung‐Seop Han   +5 more
wiley   +1 more source

Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process

, 2009
Ba2Ti9O20 materials were prepared by reacting nano-sized BaTiO3 powders (50 nm) with TiO2 powders (∼100 nm). The materials prepared by calcination and sintering 2-step processes possess high sintered density (> 96.5% T.D.) and exhibit marvelous microwave
朱立文; Chu, Li-wen; Hsiue, Ging-ho; Chiang, Yi-jen; 林諭男; Lin, I-nan
core   +1 more source

Microwave Annealing of Powder Metals without Sintering [PDF]

, 2019
  This work was supported by projects: APVV 0115-15 and VEGA 2/0108/18.Bureš, R.; Fáberová, M.; Dilyova, M. (2019). Microwave Annealing of Powder Metals without Sintering. En AMPERE 2019.
Radovan Bureš, Bureš, Radovan, Michaela Dilyova, Mária Fáberová, Dilyova, Michaela, Fáberová, Mária   +5 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source