Results 31 to 40 of about 44,705 (305)

Neutron diffraction and NMR relaxation studies of structural variation and phase transformations for water/ice in SBA-15 silica: I. The over-filled case [PDF]

, 2006
Neutron diffraction and NMR relaxation measurements have been made of water/ice in SBA-15, a mesoporous silica constituting an ordered array of cylindrical mesopores of pore diameter similar to 86 angstrom, over the temperature range 180-300 K in a ...
Webber, J. Beau W., G H Findenegg, Khushalani, S., Findenegg, G.H., E Liu, T Hansen, Hansen, Thomas, J C Dore, Dore, J. C., Hansen, T., D Khushalani, Khushalani, D., Jähnert, S., J B W Webber, Findenegg, G. H., Webber, Beau, S Jähnert, Liu, E., Dore, John C.   +18 more
core   +1 more source

Design of Thermo Mechanicaln Processing and Transformation Behaviour of Bulk Si-Mn Trip Steel [PDF]

Metalurgija, 2006
In the last decade, a lot of effort has been paid to optimising the thermomechanical processing of TRIP steels that stands for transformation induced plasticity.
Zrnik, J., Mamuzić, I., Lukaš, P., Muransky, O., Jenčuš, P., Novy, Z.   +5 more
doaj  

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

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

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

Magnetic ordering in Gd5Ir2Bi and Gd5Ir2Sb

AIP Advances, 2016
155Gd Mössbauer spectroscopy and neutron powder diffraction have been used to study magnetic ordering in Gd5Ir2Bi and Gd5Ir2Sb. Despite the hyperfine fields (Bhf) at the two Gd sites differing by more than a factor of two for both compounds, the moments ...
D. H. Ryan, Nadejda Mas, Rasa Rejali, T. Miller, Birgit Gerke, Birgit Heying, Rainer Pöttgen, Roxana Flacau   +7 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

Diffraction of Neutrons by Imperfect Gases [PDF]

Physical Review, 1958
The theory of cluster expansions is studied by a new method. A general procedure for obtaining the thermal average of a many-body function as a series in powers of density is derived. A recipe based on the Daker-Hausdorff theorem for reducing quantum thermal averages to their classical analogs is also described.
Mazo, R. M., Zemach, A. C.
openaire   +2 more sources

Residual Stress in Wheels: Comparison of Neutron Diffraction and Ultrasonic Methods, with Trends in RCF

, 2014
The critical damage mechanism on many GB passenger train wheels is Rolling Contact Fatigue (RCF) cracking in the rim. Evidence from field observations suggests that RCF damage occurs much more quickly as the wheelsets near the end of their life.
Bevan, Adam, Bevan, A. J., Kabra, S, Zhang, S. Y, Molyneux-Berry, P. B., Molyneux-Berry, Paul, Zhang, S. Y., Kabra, S.   +7 more
core   +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