In Situ Study of Deformation Twinning and Detwinning in Helium Irradiated Small‐Volume Copper
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Engineering Materials"
DOI: 10.1002/adem.201700357
Abstract: The influence of nanoscale helium bubbles on the deformation twinning and detwinning behavior of submicron-sized Cu is investigated under tension, compression, and cyclic loading. In situ nanomechanical tests performed inside a transmission electron microscope reveal… read more here.
Keywords: deformation twinning; copper; twinning detwinning; helium irradiated ... See more keywords
Helium cooled dual breeder blanket–preliminary design analyses of a candidate breeding blanket concept for near term Indian DEMO fusion reactor
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Energy Research"
DOI: 10.1002/er.5555
Abstract: Helium cooled dual breeder (HCDB) blanket concept is designed for Indian DEMO fusion reactor and it is made of two tritium breeder materials PbLi and Li2TiO3. It has helium as a coolant and the India… read more here.
Keywords: breeder; indian demo; blanket; blanket concept ... See more keywords
Helium-assisted enhanced discharge in a hollow needle for high-field asymmetric ion mobility spectrometry (FAIMS)
Sign Up to like & getrecommendations! Published in 2021 at "Analytical and Bioanalytical Chemistry"
DOI: 10.1007/s00216-021-03250-6
Abstract: A carrier gas mixture of nitrogen and helium has been employed to improve the resolving power at the expense of sensitivity for planar high-field asymmetric ion mobility spectrometry (FAIMS) in previous work. In this paper,… read more here.
Keywords: ion; high field; asymmetric ion; field asymmetric ... See more keywords
Helium-filled soap bubbles for vortex core velocimetry
Sign Up to like & getrecommendations! Published in 2017 at "Experiments in Fluids"
DOI: 10.1007/s00348-017-2415-x
Abstract: Velocity measurements within the core of high-swirl vortices are often hampered by heavier-than-air particle tracers being centrifuged outside the vortex core region. The use of neutrally buoyant and lighter-than-air tracers is investigated to aim at… read more here.
Keywords: vortex core; soap; core; air ... See more keywords
Stable Trapping of Multielectron Helium Bubbles in a Paul Trap
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-016-1702-x
Abstract: In a recent experiment, we have used a linear Paul trap to store and study multielectron bubbles (MEBs) in liquid helium. MEBs have a charge-to-mass ratio (between 10$$^{-4}$$-4 and 10$$^{-2}$$-2 C/kg) which is several orders… read more here.
Keywords: paul trap; trapping multielectron; trap; stable trapping ... See more keywords
A Continuous 100-mK Helium-Light Cooling System for MUSCAT on the LMT
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-018-2024-y
Abstract: The MUSCAT instrument is a large-format camera planned for installation on the Large Millimeter Telescope in 2018. MUSCAT requires continuous cooling of several large-volume stages to sub-Kelvin temperatures, with the focal plane cooled to 100 mK.… read more here.
Keywords: system; continuous 100; helium light; muscat ... See more keywords
Reliability Enhancement in Nondestructive Evaluation: Development of Practical Rules for Vacuum Type Helium Leak Tests
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Nondestructive Evaluation"
DOI: 10.1007/s10921-017-0394-8
Abstract: In helium leak testing, reliability is an important factor and while attempting to improve this, lot of challenges are being faced. There are contributors for bringing in variations in leak meter readings obtained during system… read more here.
Keywords: practical rules; helium leak; test; reliability ... See more keywords
PIV Validation of 3D Multicomponent Model for Cold Spray Within Nitrogen and Helium Supersonic Flow Field
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Thermal Spray Technology"
DOI: 10.1007/s11666-017-0567-0
Abstract: This study presents the validation of a developed three-dimensional multicomponent model for cold spray process using two particle image velocimetry (PIV) experiments. The k-ε type 3D model developed for spherical titanium particles was validated with… read more here.
Keywords: cold spray; spray; model; titanium ... See more keywords
Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures
Sign Up to like & getrecommendations! Published in 2017 at "JOM"
DOI: 10.1007/s11837-017-2580-7
Abstract: We summarize recent work on helium (He) interaction with various heterophase boundaries under high temperature irradiation. We categorize the ion-affected material beneath the He-implanted surface into three regions of depth, based on the He/vacancy ratio.… read more here.
Keywords: mechanical response; response nanolaminate; microstructure evolution; evolution mechanical ... See more keywords
Electron Attachment and Electron Ionization of Formic Acid Clusters Embedded in Helium Nanodroplets
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1007/s13361-018-02124-z
Abstract: AbstractWe report the results of an experimental study of electron ionization of large helium nanodroplets doped with formic acid (FA). Several homologous series of cluster anions are observed, including [FAn-H]−, undissociated FAn−, and these ions… read more here.
Keywords: electron attachment; acid clusters; formic acid; electron ionization ... See more keywords
A Capacitively Coupled Discharge Operating on Pure Water Vapor and Mixture with Helium at Low and Close to Atmospheric Pressure
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-017-2601-4
Abstract: A one-dimensional fluid model has been developed and used to investigate a capacitively coupled discharge operating on a pure water vapor and on a mixture of water with helium. These models incorporate 29 main species… read more here.
Keywords: water; water vapor; helium; pressure ... See more keywords