Results 21 to 30 of about 15,088 (259)

Intrinsic thermal expansion and tunability of thermal expansion coefficient in Ni-substituted Co2V2O7

JPhys Materials, 2023
Framework oxide materials are well-known for exhibiting not only negative thermal expansion (NTE), but also demonstrating thermal expansion that can be controlled using composition as a tuning parameter.
Erica T B Esteban, Jasmine J Garcia, Sophie R Windover, Joya A Cooley   +3 more
doaj   +1 more source

Structural studies of the brass ingots from the Shcherbet historical complex of the Lower Kama region: neutron diffraction and tomography studies

Eurasian Journal of Physics and Functional Materials, 2022
The structural characteristics and phase composition of several ancient brass ingots obtained in the archeological Shcherbet complex has been studied using neutron diffraction and tomography methods.
A.Zh. Zhomartova, E.F. Shaykhutdinova, B.A. Bakirov, S.E. Kichanov, D.P. Kozlenko, A.G. Sitdikov   +5 more
doaj   +1 more source

Neutron Diffraction Measurements of Residual Stresses for Ferritic Steel Specimens over 80 mm Thick

Metals
The maximum thickness for ferritic steel specimens’ residual stress measurements using neutron diffraction is known to be about 80 mm. This paper proposes a new neutron diffraction configuration of residual stress measurements for cases that are over 80 ...
Vyacheslav Em, Karpov Ivan, Wanchuck Woo, Pavol Mikula   +3 more
doaj   +1 more source

The neutron diffraction experiments under high pressure and high temperature on FENGHUANG diffractometer at CMRR

Nuclear Analysis, 2022
FENGHUANG diffractometer at CMRR, a high-intensity multi-section neutron powder diffractometer, has been constructed to in situ studies of materials under high pressure high temperature conditions.
Leiming Fang, Xiping Chen, Lei Xie, Guangai Sun, Bo Chen, Shuming Peng   +5 more
doaj   +1 more source

Fast and Accurate Pixel Calibration of Tof Neutron Diffractometers with Machine Learning

Quantum Beam Science
At a spallation neutron source, neutron pulses of varying energies are generated, and the detection of neutrons by instrument detectors is recorded as time-of-flight from the emission of the neutron pulse to its arrival at specific detector pixels with ...
Albert P. Song, Ke An
doaj   +1 more source

Effect of Deformation Mechanisms on Magnetic Record in Marble Shear Zones

Geochemistry, Geophysics, Geosystems
Processes that form and deform any rock leave distinct imprints on its microstructure. The description and interpretation of these microstructural features aids in understanding rock's evolution.
Zuzana Roxerová, Vladimír Kusbach, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima   +6 more
doaj   +1 more source

Study on Texture Recognition Capability and Anti-noise Performance of Convolutional Neural Networks

Yuanzineng kexue jishu
Neutron diffraction has been recognized as an ideal analytical technique for investigating material properties and functions through the characterization of phase composition, structural features, and microstructural characteristics.
ZHAO Bokai1, 2, HOU Yuhan1, 2, LIU Xiaolong1, 2, LI Yuqing1, 2, LIU Danmin3, LI Meijuan1, 2, , CHEN Dongfeng1, 2, , ZHANG Yingxun1,
doaj   +1 more source

Neutron sub-micrometre tomography from scattering data

IUCrJ, 2020
Neutrons are valuable probes for various material samples across many areas of research. Neutron imaging typically has a spatial resolution of larger than 20 µm, whereas neutron scattering is sensitive to smaller features but does not provide a real ...
B. Heacock, D. Sarenac, D. G. Cory, M. G. Huber, J. P. W. MacLean, H. Miao, H. Wen, D. A. Pushin   +7 more
doaj   +1 more source

Foundational Machine‐Learning Interatomic Potential for Simulating Chemically Complex Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
We apply a foundational machine‐learning interatomic potential based on the graph atomic cluster expansion (GRACE) to simulate the commercial Ni‐based single‐crystal superalloy CMSX‐4. Hybrid Monte‐Carlo/molecular dynamics sampling resolves short‐range order in the γ phase and L12 sublattice occupancies in the γ’ phase and connects them to stacking ...
Aditya Vishwakarma, Sarath Menon, Fritz Körmann, Thomas Hammerschmidt, Ralf Drautz   +4 more
wiley   +1 more source

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes

Scientific Reports
Nanoparticle–polymer composite gratings incorporating ultrahigh-refractive-index hyperbranched polymers as organic nanoparticles have demonstrated exceptional light optical properties, yet their potential for neutron diffraction applications remains ...
Elhoucine Hadden, Jürgen Klepp, Martin Fally, Tobias Jenke, Joachim Kohlbrecher, Tomoko Shimada, Asako Narita, Juro Oshima, Yasuo Tomita   +8 more
doaj   +1 more source