Phase-separation kinetics of dilute Cu-Fe alloys studied by anomalous small-angle x-ray scattering and Mössbauer spectroscopy

1992 ◽  
Vol 46 (18) ◽  
pp. 11323-11331 ◽  
Author(s):  
P. Fratzl ◽  
Y. Yoshida ◽  
G. Vogl ◽  
H. G. Haubold
Keyword(s):  
Phase Separation ◽  
Small Angle ◽  
Mossbauer Spectroscopy ◽  
X Ray ◽  
X Ray Scattering ◽  
Phase Separation Kinetics ◽  
Fe Alloys ◽  
Kinetics Of ◽  
Separation Kinetics ◽  
Ray Scattering

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

In Situ Wide- and Small-Angle X-ray Scattering Study of Melting Kinetics of Isotactic Poly(propylene)

2003 ◽  
Vol 36 (11) ◽  
pp. 4042-4050 ◽  
Author(s):  
Patrick S. Dai ◽  
Peggy Cebe ◽  
Malcolm Capel ◽  
Rufina G. Alamo ◽  
Leo Mandelkern
Keyword(s):  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Melting Kinetics ◽  
Scattering Study ◽  
Poly Propylene ◽  
Kinetics Of ◽  
Ray Scattering

The nature of the scattering tail in Cu–Ni–Fe and Invar alloys investigated by anomalous small-angle X-ray scattering

1991 ◽  
Vol 24 (6) ◽  
pp. 1027-1034 ◽  
Author(s):  
J. P. Simon ◽  
O. Lyon
Keyword(s):  
Small Angle ◽  
Large Scale ◽  
Concentration Fluctuations ◽  
X Ray ◽  
Invar Alloys ◽  
X Ray Scattering ◽  
Angle Measurements ◽  
Two Systems ◽  
Fe Alloys ◽  
Ray Scattering

A large rapidly decreasing intensity called the `scattering tail' is generally observed at the smallest recorded angles during small-angle measurements of metallic alloys. Since this tail was interpreted as caused by a bimodal phase separation in Cu–Ni–Fe alloys and by long-wavelength concentration fluctuations in Invar alloys, these two systems were re-examined with anomalous X-ray scattering. The variation of the alloying atomic contrasts allows a discrimination between the different types of particles or defects. In neither of the two systems can the tails be interpreted as caused by large-scale concentration fluctuations. In Cu–Ni–Fe alloys, the tail is due to some kind of superficial defect (surface roughness etc.). In Invar alloys, the tail is probably due to residual impurity particles.

Synchrotron Small-Angle X-ray Scattering Studies on Phase Separation and Crystallization of Associated Polymer Blends

1999 ◽  
Vol 32 (5) ◽  
pp. 1554-1558 ◽  
Author(s):  
Katsuhiro Inomata ◽  
Li-Zhi Liu ◽  
Takuhei Nose ◽  
Benjamin Chu
Keyword(s):  
Phase Separation ◽  
Polymer Blends ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Small‐Angle X‐Ray Scattering Study of Phase Separation in Glasses

1972 ◽  
Vol 43 (4) ◽  
pp. 1636-1641 ◽  
Author(s):  
I. S. Patel ◽  
Paul W. Schmidt ◽  
Stanley M. Ohlberg
Keyword(s):  
Phase Separation ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Time-Resolved Small-Angle X-ray Scattering Study of the Kinetics of Disorder−Order Transition in a Triblock Copolymer in a Selective Solvent for the Middle Block

2003 ◽  
Vol 36 (21) ◽  
pp. 8097-8106 ◽  
Author(s):  
Huifen Nie ◽  
Rama Bansil ◽  
Karl Ludwig ◽  
Milos Steinhart ◽  
Čestmír Koňák ◽  
...  
Keyword(s):  
Small Angle ◽  
Triblock Copolymer ◽  
Order Transition ◽  
Selective Solvent ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Kinetics Of ◽  
Ray Scattering
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