scholarly journals Nanoscale disintegration kinetics of mesoglobules in aqueous poly(N-isopropylacrylamide) solutions revealed by small-angle neutron scattering and pressure jumps

Nanoscale ◽  
2021 ◽  
Author(s):  
Bart-Jan Niebuur ◽  
Leonardo Chiappisi ◽  
Florian A. Jung ◽  
Xiaohan Zhang ◽  
Alfons Schulte ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Polymeric Nanoparticles ◽  
Target Pressure ◽  
Kinetics Of ◽  
Rapid Pressure

Two types of disintegration processes are revealed for polymeric nanoparticles using rapid pressure jumps and kinetic small-angle neutron scattering, namely chain release or swelling of the nanoparticle, depending on the target pressure.

Diffuse and Small Angle Neutron Scattering Studies of Clustering and Decomposition in Electron-Irradiated Cu-Ni-Fe Alloys

1983 ◽  
Vol 21 ◽  
Author(s):  
H.W. Gölling ◽  
R. Poerschke ◽  
D. Schwahn ◽  
H. Wollenberger
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Small Degree ◽  
Miscibility Gap ◽  
Enhanced Diffusion ◽  
Ni Alloys ◽  
Momentum Transfer Range ◽  
Fe Alloys ◽  
Kinetics Of

ABSTRACTEarlier investigations of short range clustering (SRC) and long range decomposition (LRD) in Cu-Ni alloys upon electron irradiation [1,2] have been extended to alloys containing 0.5 and 2 at.% Fe. Moreover, quenching instead of furnace cooling was applied to achieve a well defined homophase equilibrium state with a small degree of SRC. Under subsequent irradiation at temperatures between 373 K and 623 K the decomposition kinetics of the alloys have been followed by diffuse and small angle neutron scattering experiments within a momentum transfer range of 0.001 < κ(Å−1) < 8. The addition of Fe is found to extend the miscibility gap to higher temperatures. The observed scattering curves are discussed in terms of the existing models for the initial stages of spinodal decomposition, irradiation enhanced diffusion and phase stability under irradiation.

Phase-transition kinetics of magnetic skyrmions investigated by stroboscopic small-angle neutron scattering

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Taro Nakajima ◽  
Yasuhiro Inamura ◽  
Takayoshi Ito ◽  
Kazuki Ohishi ◽  
Hiroshi Oike ◽  
...  
Keyword(s):  
Phase Transition ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Phase Transition Kinetics ◽  
Magnetic Skyrmions ◽  
Kinetics Of
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