Results 131 to 140 of about 2,941 (231)

Reaction flash sintering of multiphase ceramics

, 2017
A new phenomenon where the application of modest electric fields can lower the sintering temperature well below 1000 oC, and the time to just a few seconds, is being called flash sintering.
Raj, Rishi
core  

Generation of Frenkel defects above the Debye temperature by proliferation of phonons near the Brillouin zone edge

New Journal of Physics, 2018
A novel, non-radiative mechanism is reported by which Frenkel pairs of vacancies and interstitials are generated in molar concentrations far above thermal equilibrium.
M Jongmanns, R Raj, D E Wolf
doaj   +1 more source

Super‐High Coercivity Sintered NdFeB Magnets Enabled by High‐Rate Dy/Tb Grain Boundary Synergistic Diffusion

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The surging demand for high‐performance NdFeB magnets has made it essential to achieve ultrahigh coercivity while minimizing the consumption of heavy rare earths. To tackle this challenge, this study proposes a Dy/Tb bilayer grain boundary diffusion strategy and systematically investigates the co‐diffusion behavior of Dy and Tb.
Rui Chang, Guangzhu Bai, Peiyuan Ping, Zihao Nie, Xiaolian Liu, Lizhong Zhao, Fang Wang, Xiaohong Xu   +7 more
wiley   +1 more source

Silver catalytic effect on flash sintering of ceramics

Open Ceramics
We investigated the use of metallic silver as a catalyst for flash sintering on hydroxyapatite/zirconia (HZ) composites. Adding 3 wt% of silver to the ceramic powder reduced the flash onset temperature (from 1084 °C to 925 °C) and also the electric field
Isabela R. Lavagnini, Bola Yoon, Viviana Avila, Sanjit K. Ghose, Rishi Raj, Eliria M.J.A. Pallone, Lílian M. Jesus, João V. Campos   +7 more
doaj   +1 more source

Science of Flash-sintering and Innovation to Sintering Technology

Journal of the Japan Society of Powder and Powder Metallurgy, 2020
Takahisa YAMAMOTO, Hidehiro YOSHIDA
openaire   +2 more sources

Millimeter/Nano‐Structured Metal Monolithic Catalysts: A Privileged Opportunity for Sustainable Water Purification

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang, Min‐Ping Zhu, Zhimin Ao, Darren Delai Sun, Yu‐Ming Zheng   +4 more
wiley   +1 more source

Flash sintering of glass containing alumina bodies

, 2016
Flash sintering of glass containing alumina ...
Biesuz, Mattia
core  

Cobalt‐Induced Strong Anharmonicity Coupled With Hierarchical Defect and Band Structure Engineering for Enhanced n‐ and p‐Type Thermoelectric Performance in ZrFe0.5Ni0.5Sb Double Half‐Heuslers

Small Structures, Volume 7, Issue 6, June 2026.
Cobalt substitution at the Fe and Ni sites in ZrFe0.5Ni0.5Sb induces lattice softening and stiffening, respectively, reducing κlatt in n‐type samples while increasing it in p‐type counterparts. A Debye–Callaway model implementation is employed to deconvolute phonon transport suppression mechanisms, revealing that anharmonicity‐related mechanisms ...
Joseph Ngugi Kahiu, Donghyun Shin, Samuel Kimani Kihoi, Stanley Abbey, Momanyi Amos Okirigiti, U. Sandhya Shenoy, D. Krishna Bhat, Min‐Wook Oh, Kwi‐Il Park, Ho Seong Lee   +9 more
wiley   +1 more source

Flash sintering of zirconia/alumina powders

, 2019
Yttria-stabilized cubic zirconia (YSZ) is the most-common electrolyte material for solid oxide fuel cells due to its reasonable oxygen-ion conductivity and chemical stability.
Yoon, Bola, Gump, Christopher, O\u27Toole, Rebecca, Weimer, Alan, Raj, Rishi   +4 more
core  

The Effects of Contact Paste Type and Electric Field on Physical Properties of Zirconia Bodies Made by Flash Sintering Method: Modeling Via Response Surface Methodology

Iranian Journal of Materials Science and Engineering, 2020
Flash sintering of 8 mol% yttria-stabilized zirconia (8YSZ) as solid oxide fuel cell (SOFC) electrolyte is studied. The relation between relative density, shrinkage, sample temperature during the flash, and incubation time, with the electric field ...
H. Mohebbi, S.M. Mirkazemi
doaj