Results 41 to 50 of about 8,757 (280)

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Stoichiometry and Grain Boundaries Control by Spark Plasma Sintering in Ba0.6Sr0.4TiO3:Mn/MgO Composites [PDF]

, 2012
LaNbO4/La3NbO7 and LaNbO4/LaNb3O9 cer-cer composites were prepared by impregnating Ca-doped LaNbO4 powder, synthesized by spray pyrolysis, with La- or Nb-precursor solutions.
Paté, Michel, Estournès, Claude, Waechter, Sabine, Chung, U-Chan, Elissalde, Catherine, Artemenko, Alla, Ganne, Jean-Pierre, Maglione, Mario, CHUNG SEU, U-Chan, Costes, Romain   +9 more
core   +1 more source

Energy storage optimization of ferroelectric ceramics during phase-transition process of amorphous/nanocrystalline and polycrystalline by using a phase-field model for dielectric breakdown

Journal of Advanced Dielectrics
Ferroelectric ceramics have the potential to be widely applied in the modern industry and military power systems due to their ultrafast charging/discharging speed and high energy density.
Suilong Huang, Jianwen Chen, Zhen Su, Xiucai Wang, Wenbo Zhu, Wenjun Chen, Xinmei Yu, Peng Xiao   +7 more
doaj   +1 more source

Reconfigurable Logic‐in‐Memory Operations Enabled by Triple‐Gated Feedback Field‐Effect Transistors for Area‐Efficient Computing

Advanced Engineering Materials, EarlyView.
A reconfigurable logic‐in‐memory cell composed of triple‐gated feedback field‐effect transistors implements multiple combinational logic functions within a single configuration. By utilizing program gates as dynamic input terminals, the proposed cell performs full adder, full subtractor, 2‐to‐1 multiplexer, and 4‐to‐2 encoder operations without ...
Minhyeok Seol, Yunwoo Shin, Donghyung Lee, Dongki Kim, Kyoungah Cho, Sangsig Kim   +5 more
wiley   +1 more source

Crystallographic and magnetic identification of secondary phase in orientated Bi5Fe0.5Co0.5Ti3O15 ceramics

, 2011
Oxide materials which exhibit both ferroelectricity and ferromagnetism are of great interest for sensors and memory applications. Layered bismuth titanates with an Aurivillius structure, (BiFeO3)nBi4Ti3O12, can possess ferroelectric and ferromagnetic
Bell, Andrew J., Susan H. Kilcoyne, Santosh Kulkarni, Saibal Roy, Kilcoyne, Susan H., Brown, Andrew P., Roger Whatmore, Harington, John, Mike B. Ward, Ward, Mike B., Lynette Keeney, Palizdar, Meghdad, Meghdad Palizdar, Quinne, Christopher, Martyn Pemble, Comyn, Tim P., Keeney, Lynette, Andrew P. Brown, Roy, Saibal, Whatmore, Roger, Kulkarni, Santosh, John Harington, Pemble, Martyn, Tim P. Comyn, Andrew J. Bell, Christopher Quinne   +25 more
core   +1 more source

Strong ferroelectric and luminescence properties of 0–3 type 0.8BaTiO3–0.2CaTiO3:Pr3+ composite ceramics prepared by cold sintering process

Journal of Advanced Ceramics
0–3 type ferroelectric–phosphor composite ceramics cannot be prepared by the traditional solid-state sintering (SSS) method due to the strong chemical reaction between ferroelectrics and phosphors during high-temperature sintering.
Xiaocui Rao, Xueling Yang, Renbing Sun, Peng Du, Hai Jiang, Yao Huang, Laihui Luo   +6 more
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

Advanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou, James FitzPatrick, Li Meng, Kateryna Shevchuk, Ahmad Najafi, Yury Gogotsi   +5 more
wiley   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

BS0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage

Journal of Advanced Ceramics, 2023
Relaxor ferroelectric ceramics have very high dielectric constant (εr) but relatively low electrical breakdown strength (Eb), while glass–ceramics exhibit higher Eb due to the more uniformly dispersed amorphous phases and submicrocrystals/nanocrystals ...
Xuhai Shi, Kai Li, Zong-Yang Shen, Junqi Liu, Chaoqun Chen, Xiaojun Zeng, Bo Zhang, Fusheng Song, Wenqin Luo, Zhumei Wang, Yueming Li   +10 more
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source