Abstract
Neutron scattering technology is one of the most promising ways to observe microstructures of different materials. As a powerful microstructure characterization technology, neutron scattering is widely used in many disciplines. With the help of sample environment equipment, the microstructure detection for materials in various application scenarios can be further realized. In order to detect the microstructure changes of materials under different tensile conditions, an in situ stretching sample environment equipment for neutron scattering experiments was designed and manufactured. Stretching force holding test, sample breaking test, and vacuum maintaining test were carried out. In those tests, a tensile force holding test with no less than 5 hours, a breaking test with a screw bolt as the sample, and a vacuum leakage rate test with no less than 5 hours were obtained, respectively. Through analyzing values obtained, it is shown that the developed prototype of the sample environment equipment is able to meet the experiment requirements. The present prototype provides a reference for further development of sample environment equipment for different application scenarios in neutron scattering experiment.
Highlights
As a powerful microstructure characterization technology, neutron scattering [1] has been widely applied in many disciplines [2, 3]
Various sample environment equipment are required for the neutron scattering experiments. ere are 27 neutron scattering spectrometers in ISIS
Magnetic particle imaging (MPI) spectrometer under construction will be mainly used for the structure analysis of different ordered materials, and the application fields will be mainly focused on the structure research of long-range ordered but shortrange disordered materials or long-range disordered but medium-short-range ordered materials
Summary
As a powerful microstructure characterization technology, neutron scattering [1] has been widely applied in many disciplines [2, 3]. Magnetic particle imaging (MPI) spectrometer under construction will be mainly used for the structure analysis of different ordered materials, and the application fields will be mainly focused on the structure research of long-range ordered but shortrange disordered materials or long-range disordered but medium-short-range ordered materials To this end, in situ stretching sample environment can be used to detect the microstructure of different ordered materials under different stress states. Is fully shows us the manufacturing difficulty and necessity to carry out test and research of the in situ stretching sample environment equipment for neutron scattering experiments. 2. Design Objectives e sample can be stretching-loaded while it is irradiated by the neutron scatting at the same time, with the help of the in situ stretching sample environment equipment in the neutron scattering experiment. The inner cylinder and outer cylinder should be isolated with vacuum
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