Determination of Size Distribution of Guinier-Preston Zones in Al-Ag Alloys by Small-Angle X-ray Scattering Method

• Authors: B. Bierska , L. Pająk
• Languages of publication: EN

Abstracts

EN

Small-angle X-ray scattering method recognised to be very useful in the studies of structural problems of materials inhomogeneous in nanoscale. Studies by small-angle X-ray scattering on the Al-Ag alloys are presented. The size distributions of spherical Guinier-Preston zones were calculated using Vonk's and Glatter's methods. Small-angle X-ray scattering studies were performed on Al-5.0 at.%Ag alloy containing spherical Guinier-Preston zones in theη-state. For this alloy one can assume that scattering particles are of spherical shape, have uniform electron density and scatter independently. Moreover, the size distributions were calculated for Al-1.6 at.%Ag alloy containing Guinier-Preston zones in ε-state (scattering particles with not uniform electron density). Both, Vonk's and Glatter's, methods gave similar size distributions. Profiles of size distributions for Guinier-Preston zones inε-state are more complex in comparison to Guinier-Preston zones inη-state. It is connected with a complex structure of Guinier-Preston zones in ε-state. A modification of the structure model of Guinier-Preston zones inε-state is proposed.

Keywords

EN

61.10.Eq; 81.40.Cd; 64.75.+g

Discipline

• 81.40.Cd: Solid solution hardening, precipitation hardening, and dispersion hardening; aging(see also 64.75.Nx Phase separation and segregation in solid solutions)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 102
• Issue: 2
• Pages: 227-232

Dates

published

2002-08

received

2001-09-23

Contributors

author

B. Bierska

• Institute of Physics and Chemistry of Metals, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

author

L. Pająk

• Institute of Physics and Chemistry of Metals, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.102.227