scholarly journals Crystallization and chain conformation of semicrystalline and amorphous polymer blends studied by wide-angle and small-angle scattering

2001 ◽  
Vol 39 (21) ◽  
pp. 2705-2715 ◽  
Author(s):  
Ching-I Huang ◽  
Jun-Rong Chen
Keyword(s):  
Polymer Blends ◽  
Small Angle ◽  
Amorphous Polymer ◽  
Small Angle Scattering ◽  
Chain Conformation ◽  
Wide Angle ◽  
Angle Scattering

Small angle scattering in polymer blends

1981 ◽  
Vol 19 (11) ◽  
pp. 1801-1801
Author(s):  
S. N. Jahshan ◽  
G. C. Summerfield
Keyword(s):  
Polymer Blends ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Angle Scattering

Small-angle scattering in polymer blends

1980 ◽  
Vol 18 (12) ◽  
pp. 2415-2416 ◽  
Author(s):  
S. N. Jahshan ◽  
G. C. Summerfield
Keyword(s):  
Polymer Blends ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Angle Scattering

Study of the Atomic Structure and Phase Separation in Amorphous Si-C-N Ceramics by X-Ray and Neutron Diffraction

1998 ◽  
Vol 53 (3-4) ◽  
pp. 127-133 ◽  
Author(s):  
S. Schempp ◽  
J. Dürr ◽  
P. Lamparter ◽  
J. Bill ◽  
F. Aldinger
Keyword(s):  
Phase Separation ◽  
Neutron Diffraction ◽  
Small Angle ◽  
Atomic Structure ◽  
Small Angle Scattering ◽  
Wide Angle ◽  
Excess Carbon ◽  
X Ray ◽  
Angle Scattering ◽  
Amorphous Si

Abstract Amorphous Si37C32N31 and Si37C29N34 ceramics were produced by pyrolysis of a polyhy-dromethylsilazane precursor. Their structure was investigated by X-ray and neutron diffraction. Wide angle diffraction showed that the Si-atoms are preferentially bonded to nitrogen atoms, but also bonding to carbon atoms was found. This suggests that the excess carbon atoms form an amorphous graphite-like phase. Small angle scattering revealed that the ceramics are inhomogeneous. The evolution of the phase separation during annealing was investigated and it was concluded that amorphous Si3N4 precipitates grow in the Si-C-N materials. The results are compared with previous results for amorphous Si24C43N33 produced from a polysilylcarbodiimide precursor [1 - 3].

scholarly journals Compton Scattering of a Twisted Light

2017 ◽  
Author(s):  
Mazen Nairat ◽  
David Voelz
Keyword(s):  
Angular Momentum ◽  
Compton Scattering ◽  
Orbital Angular Momentum ◽  
Small Angle ◽  
Scattering Matrix ◽  
Small Angle Scattering ◽  
Wide Angle ◽  
Angular Momenta ◽  
Angle Scattering ◽  
Twisted Light

The variation of photonic orbital angular momentum at Compton scattering is characterized. We determine scattering matrix of a twisted light based on the fundamental conservation of orbital angular momenta. Numerical values for two different twisted light modes: Laguerre Gaussian and Bessel Gaussian, are generated and illustrated. Our analysis indicate that states of photonic orbital angular momentum are highly changeable at wide angle scattering but more consistent at small angle scattering.

Small angle scattering study of silica gels and zeolites

1993 ◽  
Vol 03 (C8) ◽  
pp. C8-393-C8-396
Author(s):  
T. P.M. BEELEN ◽  
W. H. DOKTER ◽  
H. F. VAN GARDEREN ◽  
R. A. VAN SANTEN ◽  
E. PANTOS
Keyword(s):  
Small Angle ◽  
Small Angle Scattering ◽  
Silica Gels ◽  
Angle Scattering ◽  
Scattering Study
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