Determination of pore accessibility in silica microparticles by small angle neutron scattering

1985 ◽  
Vol 57 (11) ◽  
pp. 2079-2084 ◽  
Author(s):  
Charles J. Glinka ◽  
Lane C. Sander ◽  
Stephen A. Wise ◽  
Michael L. Hunnicutt ◽  
Charles H. Lochmuller
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Silica Microparticles

scholarly journals Determination of Internal Density Profiles of Smart Acrylamide-Based Microgels by Small-Angle Neutron Scattering: A Multishell Reverse Monte Carlo Approach

Langmuir ◽  
2018 ◽  
Vol 34 (50) ◽  
pp. 15403-15415 ◽  
Author(s):  
Marian Cors ◽  
Lars Wiehemeier ◽  
Yvonne Hertle ◽  
Artem Feoktystov ◽  
Fabrice Cousin ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Reverse Monte Carlo ◽  
Density Profiles ◽  
Monte Carlo Approach

scholarly journals Determination of partial specific volume and absolute concentration by densimetry

1984 ◽  
Vol 219 (3) ◽  
pp. 1049-1052 ◽  
Author(s):  
P H Stothart
Keyword(s):  
Absorption Coefficient ◽  
Neutron Scattering ◽  
Prior Knowledge ◽  
Small Angle ◽  
Specific Volume ◽  
Small Angle Neutron Scattering ◽  
Partial Specific Volume ◽  
Absolute Concentration ◽  
Non Destructive

The apparent partial specific volume, phi, of a protein (or other macromolecule) and the absolute concentration, c, can be determined from the densimetry of solutions and diffusates in 1H2O, 2H2O and 1H2O/2H2O mixtures if the ratios of concentrations (relative concentrations) are known. The densimetry method allows a non-destructive check on total macromolecule concentrations without prior knowledge of specific u.v.-absorption coefficient. The method may be especially useful in small-angle neutron-scattering studies.

scholarly journals Quantitative 3D determination of self-assembled structures on nanoparticles using small angle neutron scattering

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhi Luo ◽  
Domenico Marson ◽  
Quy K. Ong ◽  
Anna Loiudice ◽  
Joachim Kohlbrecher ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Self Assembled

Determination of the Composition of Mixed Hydrogenated and Fluorinated Micelles by Small Angle Neutron Scattering

1997 ◽  
Vol 101 (46) ◽  
pp. 9525-9531 ◽  
Author(s):  
L. Pedone ◽  
D. Chillura Martino ◽  
E. Caponetti ◽  
M. A. Floriano ◽  
R. Triolo
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering

Determination of γ′ solution temperature in Re-rich Ni-base superalloy by small-angle neutron scattering

2001 ◽  
Vol 34 (5) ◽  
pp. 541-548 ◽  
Author(s):  
Pavel Strunz ◽  
Debashis Mukherji ◽  
Ralph Gilles ◽  
Albrecht Wiedenmann ◽  
Hartmut Fuess
Keyword(s):  
Neutron Scattering ◽  
Temperature Dependence ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Volume Fraction ◽  
Solidus Temperature ◽  
Solution Temperature ◽  
Incipient Melting ◽  
Relative Volume Fraction

A harmful segregation of heavy elements (e.g.W, Mo, Re) during solidification of Ni-base superalloys can only be eliminated by using a homogenizing heat treatment, which needs to be carried out in the single-phase (γ) field above the γ′ solvus temperature but below the solidus temperature. Small-angle neutron scattering (SANS) was employed forin situobservation of the dissolution of precipitates in an Re-rich superalloy. The temperature dependence of the relative volume fraction and the size distribution of smaller γ′ precipitates, and the specific surface of large inhomogeneities as well as some other parameters were determined from the two-dimensional scattering curves measured for as-cast and heat-treated samples. Overlap of the incipient melting region with the region where a certain amount of precipitates remained undissolved was observed, thus complicating a determination of the temperature at which all γ′ precipitates are already dissolved. Nevertheless, conclusions about the temperature at which the precipitates dissolve and about the temperature at which the incipient melting starts could be formulated. The total scattering probability is suggested as the measure of the overall homogeneity of the distribution of elements in the sample. The temperature dependence of this parameter indicates the optimum solution procedure.

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