Increase in Neutron Reflectivity from Big Cu and CoFe (8%at.) Alloy Single Crystal Plates Resulting from Cold Hammering of the Plates

• Authors: M. Ślepowroński , S. Bednarski , M. Wieczorkowski , E. Maliszewski
• Languages of publication: EN

Abstracts

EN

In the paper changes of neutron reflectivity of big (120×70×10 mm^{3}) Cu single crystalline monochromators and CoFe (8%at.) single crystalline, polarising monochromators after cold hammering of the starting plates, are described. An almost three times higher number of reflected neutrons (total reflectivity) and about 20% higher intensity in peak maximum were observed, for Cu plates (measured in reflection from (220) plane)), while the mosaic's spread was about 2 times higher than the one measured for a non-treated plate. In the case of CoFe, 3 mm thick plates, a two times higher number of reflected neutrons and almost 60% higher intensity in peak maximum were observed (measured in transmission - from (200) plane) after hammering, while the mosaic's spread increase was rather small (about 15%).

Keywords

EN

06.90.+v; 81.40.-z

Discipline

• 81.40.-z: Treatment of materials and its effects on microstructure, nanostructure, and properties
• 06.90.+v: Other topics in metrology, measurements, and laboratory procedures (restricted to new topics in section 06)

• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 89
• Issue: 3
• Pages: 389-394

Dates

published

1996-03

Contributors

author

M. Ślepowroński

• Institute of Atomic Energy, 05-400 Świerk-Otwock, Poland

author

S. Bednarski

• Institute of Atomic Energy, 05-400 Świerk-Otwock, Poland

author

M. Wieczorkowski

• Institute of Atomic Energy, 05-400 Świerk-Otwock, Poland

author

E. Maliszewski

• Institute of Atomic Energy, 05-400 Świerk-Otwock, Poland

Identifiers

DOI

10.12693/APhysPolA.89.389