ISIS Neutron and Muon Source Data Journal

SANS investigation of cross-linking in irradiated greases

Abstract: Greases used in harsh radioactive environments are showing microstructural damages. These defects cause changes in the physical and chemical properties of materials, which in turn can lead to premature structural failure. The physical properties of polymers depend on the arrangement of individual units and only small changes i.e. through radiation are needed to convert a 1D or 2D polymer into a 3D polymeric network. For example, saturated hydrocarbons show an increased degree of unsaturation and cross-linking upon irradiation, consistent with the loss of hydrogen observed under irradiation. A second consequence of irradiation is degradation with reduction in molecular weight. We would like to compare an irradiated grease to a virgin grease using small-ange neutron scattering. Rheology in-situ with SANS will help us discover modifications in the cross-linking in the grease.

Principal Investigator: Dr Monika Hartl
Experimenter: Dr Yong Joong Lee
Experimenter: Professor Aldo Zenoni
Experimenter: Mr Matteo Ferrari
Local Contact: Dr Steve King
Experimenter: Dr Melissa Sharp

DOI: 10.5286/ISIS.E.RB1910553

ISIS Experiment Number: RB1910553

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Monika Hartl et al; (2019): SANS investigation of cross-linking in irradiated greases, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910553

Data is released under the CC-BY-4.0 license.