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 …

Recent advances in characterising irradiation damage in tungsten for fusion power

S Das - SN Applied Sciences, 2019 - Springer
Tungsten is the front-runner candidate for building the plasma-facing armour components for
future fusion reactors. However, in-service irradiation by fusion-neutrons and helium will …

Understanding nanoscale plasticity by quantitative in situ conductive nanoindentation

J George, S Mannepalli… - Advanced Engineering …, 2021 - Wiley Online Library
Electronic materials such as semiconductors, piezo‐and ferroelectrics, and metal oxides are
primary constituents in sensing, actuation, nanoelectronics, memory, and energy systems …

Nanoindentation pop‐in in oxides at room temperature: dislocation activation or crack formation?

X Fang, H Bishara, K Ding, H Tsybenko… - Journal of the …, 2021 - Wiley Online Library
Most oxide ceramics are known to be brittle macroscopically at room temperature with little
or no dislocation‐based plasticity prior to crack propagation. Here, we demonstrate the size …

Integrated experimental and computational study on the effect of hydrogen in mechanical responses of pure tungsten

Y Oh, S Sung, J Jang, WS Ko, HN Han - Acta Materialia, 2024 - Elsevier
Hydrogen irradiation profoundly changes the microstructure and morphological
characteristics of tungsten, ultimately resulting in the modifications to its mechanical …

Nanoscale to microscale reversal in room-temperature plasticity in SrTiO3 by tuning defect concentration

X Fang, K Ding, S Janocha, C Minnert, W Rheinheimer… - Scripta materialia, 2020 - Elsevier
Incipient room-temperature plastic deformation in single-crystal SrTiO 3 at the nanoscale
and the microscale is contrasted by applying a scale-dependent indentation technique …

Room‐temperature dislocation plasticity in SrTiO3 tuned by defect chemistry

S Stich, K Ding, QK Muhammad, L Porz… - Journal of the …, 2022 - Wiley Online Library
Dislocations have been identified to modify both the functional and mechanical properties of
some ceramic materials. Succinct control of dislocation‐based plasticity in ceramics will also …

Dislocation-based crack initiation and propagation in single-crystal SrTiO3

X Fang, K Ding, C Minnert, A Nakamura… - Journal of Materials …, 2021 - Springer
Understanding the irreversible deformation (dislocation activation and crack formation) of
functional oxides, based on which various advanced electronic devices are fabricated, is …

Modified deformation behaviour of self-ion irradiated tungsten: A combined nano-indentation, HR-EBSD and crystal plasticity study

S Das, H Yu, K Mizohata, E Tarleton… - International Journal of …, 2020 - Elsevier
Predicting the dramatic changes in mechanical and physical properties caused by
irradiation damage is key for the design of future nuclear fission and fusion reactors. Self-ion …

Coupling crystal plasticity and stochastic cluster dynamics models of irradiation damage in tungsten

Q Yu, S Chatterjee, KJ Roche, G Po… - … and Simulation in …, 2021 - iopscience.iop.org
Irradiation damage is known to alter a material's microstructure due to the accumulation of
high densities of defect clusters. Such irradiated microstructures change the mechanical …