Neutron Diffraction and Small-Angle Scattering as Nondestructive Probes of the Microstructure of Materials

1980 ◽  
pp. 143-164 ◽  
Author(s):  
C. J. Glinka ◽  
H. J. Prask ◽  
C. S. Choi
Keyword(s):  
Neutron Diffraction ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Angle Scattering

Structure of Molten Sn-Zn-Alloys by Means of Neutron Diffraction

1978 ◽  
Vol 33 (10) ◽  
pp. 1151-1153 ◽  
Author(s):  
Walter Knoll ◽  
Siegfried Steeb
Keyword(s):  
Neutron Diffraction ◽  
Small Angle ◽  
Correlation Functions ◽  
Pair Correlation ◽  
Small Angle Scattering ◽  
Pair Correlation Functions ◽  
Structure Factors ◽  
Angle Scattering ◽  
Total Structure ◽  
Zn Alloys

Abstract Neutron diffraction experiments were performed with four molten Sn-Zn-alloys and the two molten elements Sn and Zn. The total structure factors and the pair correlation functions are given. The observed small angle scattering leads to the result that pairs of equal atoms predominate within the range of medium concentrations.

The effect of gravity on the resolution of small-angle neutron diffraction peaks

2011 ◽  
Vol 44 (5) ◽  
pp. 1127-1129 ◽  
Author(s):  
D. F. R. Mildner ◽  
J. G. Barker ◽  
S. R. Kline
Keyword(s):  
Neutron Diffraction ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Gravity Effect ◽  
Neutron Beams ◽  
Angle Scattering ◽  
Beam Center ◽  
Diffraction Peaks ◽  
Large Wavelength

The resolution ellipses for neutron diffraction peaks at small scattering vectors lie along lines that point to a position vertically above the beam center on the small-angle scattering detector. This gravity effect is only noticeable for neutron beams at long wavelengths and with large wavelength spreads.

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].

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
Sign in / Sign up

Export Citation Format

Share Document