Mechanical tailoring of dislocations in ceramics at room temperature: A perspective
X Fang - Journal of the American Ceramic Society, 2024 - Wiley Online Library
The potential of dislocations (line defects) in ceramics may have been greatly underrated
until most recently. Promising proofs‐of‐concept have been demonstrated for dislocation …
until most recently. Promising proofs‐of‐concept have been demonstrated for dislocation …
Mechanical manipulation for ordered topological defects
Randomly distributed topological defects created during the spontaneous symmetry
breaking are the fingerprints to trace the evolution of symmetry, range of interaction, and …
breaking are the fingerprints to trace the evolution of symmetry, range of interaction, and …
Sub-nanometer-scale mapping of crystal orientation and depth-dependent structure of dislocation cores in SrTiO3
Defects in crystals play a fundamental role in modulating mechanical, electrical,
luminescent, and magnetic behaviors of materials. However, accurate measurement of …
luminescent, and magnetic behaviors of materials. However, accurate measurement of …
The impact of flash sintering on densification and plasticity of strontium titanate: high heating rates, dislocation nucleation and plastic flow
Flash sintering involves very rapid densification of ceramic powder compacts during a
thermal runaway induced by an applied voltage and current. The mechanisms of fast …
thermal runaway induced by an applied voltage and current. The mechanisms of fast …
Dislocation toughening in single‐crystal KNbO3
The growing research interest in dislocation‐tuned functionality in ceramics is evident, with
the most recent proofs‐of‐concept for enhanced ferroelectric properties, electrical …
the most recent proofs‐of‐concept for enhanced ferroelectric properties, electrical …
Theoretical upper limit of dislocation density in slightly-ductile single-crystal ceramics
K Yasui, K Hamamoto - Journal of Physics: Condensed Matter, 2023 - iopscience.iop.org
Upper limit of dislocation density without fracture is numerically calculated for slightly-ductile
single-crystal ceramics for which the Griffith criterion for fracture and the Bailey–Hirsch type …
single-crystal ceramics for which the Griffith criterion for fracture and the Bailey–Hirsch type …
[HTML][HTML] Fatigue-free dielectric and piezoelectric response in single-crystal BaTiO3 tuned by dislocation imprint
Dislocations have recently been imprinted into barium titanate single crystals to provide
local domain wall pinning sites. Here, we assess the cycling stability under unipolar loading …
local domain wall pinning sites. Here, we assess the cycling stability under unipolar loading …
60 years of dislocations in ceramics: A conceptual framework for dislocation mechanics in ceramics
L Porz - International Journal of Ceramic Engineering & …, 2022 - Wiley Online Library
High‐tech ceramics are typically engineered by controlling point defects and interfaces
while one‐dimensional dislocations have found much less attention so far. Nevertheless …
while one‐dimensional dislocations have found much less attention so far. Nevertheless …
Room‐temperature bulk plasticity and tunable dislocation densities in KTaO3
We report room‐temperature bulk plasticity mediated by dislocations in single‐crystal cubic
potassium tantalate oxide (KTaO3), contrasting the conventional knowledge that single …
potassium tantalate oxide (KTaO3), contrasting the conventional knowledge that single …
The unusual case of plastic deformation and high dislocation densities with the cold sintering of the piezoelectric ceramic K0. 5Na0. 5NbO3
Abstract K 0.5 Na 0.5 NbO 3 (KNN) can be readily densified using the cold sintering process,
but despite observing high relative permittivity, the ferroelectric hysteresis is strongly …
but despite observing high relative permittivity, the ferroelectric hysteresis is strongly …