Dislocation-mediated conductivity in oxides: Progress, challenges, and opportunities

MD Armstrong, KW Lan, Y Guo, NH Perry - ACS nano, 2021 - ACS Publications
Dislocations in ionic solids are topological extended defects that modulate composition,
strain, and charge over multiple length scales. As such, they provide an extra degree of …

[HTML][HTML] Modeling the mechanical properties of nanoparticles: a review

J Amodeo, L Pizzagalli - Comptes …, 2021 - comptes-rendus.academie-sciences …
Nanoparticles are commonly used in various fields of applications such as electronics,
catalysis or engineering where they can be subjected to a certain amount of stress leading …

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 …

Dislocation-toughened ceramics

L Porz, AJ Klomp, X Fang, N Li, C Yildirim… - Materials …, 2021 - pubs.rsc.org
Functional and structural ceramics have become irreplaceable in countless high-tech
applications. However, their inherent brittleness tremendously limits the application range …

Conceptual framework for dislocation-modified conductivity in oxide ceramics deconvoluting mesoscopic structure, core, and space charge exemplified for SrTiO3

L Porz, T Frömling, A Nakamura, N Li, R Maruyama… - ACS …, 2020 - ACS Publications
The introduction of dislocations is a recently proposed strategy to tailor the functional and
especially the electrical properties of ceramics. While several works confirm a clear impact of …

Theoretical insights into the Peierls plasticity in SrTiO3 ceramics via dislocation remodelling

Y Li, X Liu, P Zhang, Y Han, M Huang, C Wan - Nature communications, 2022 - nature.com
An in-depth understanding of the dislocations motion process in non-metallic materials
becomes increasingly important, stimulated by the recent emergence of ceramics and …

Achieving room temperature plasticity in brittle ceramics through elevated temperature preloading

C Shen, J Li, T Niu, J Cho, Z Shang, Y Zhang… - Science …, 2024 - science.org
Ceramic materials with high strength and chemical inertness are widely used as
engineering materials. However, the brittle nature limits their applications as fracture occurs …

The impact of flash sintering on densification and plasticity of strontium titanate: high heating rates, dislocation nucleation and plastic flow

W Rheinheimer, XL Phuah, L Porz, M Scherer… - Journal of the European …, 2023 - Elsevier
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 …

Donor and acceptor-like self-doping by mechanically induced dislocations in bulk TiO2

QK Muhammad, L Porz, A Nakamura, K Matsunaga… - Nano Energy, 2021 - Elsevier
Dislocations have been recently introduced as a novel tool to tailor the conductivity of
functional ceramics. However, tuning strategies suffer from poor insight into the structural …

Enhanced Photoconductivity at Dislocations in SrTiO3

M Kissel, L Porz, T Frömling, A Nakamura… - Advanced …, 2022 - Wiley Online Library
Dislocations are 1D crystallographic line defects and are usually seen as detrimental to the
functional properties of classic semiconductors. It is shown here that this not necessarily …