Neutron diffraction sample chamber

Abstract

The invention belongs to the technical field of neutron diffraction and discloses a neutron diffraction zero-substrate sample chamber which is made from titanium-zirconium alloy, wherein the weight proportion of titanium and zirconium is 65 to 69 percent of the zirconium and 31 to 35 percent of the titanium. Therefore, the sample chamber eliminates the interference caused by the prior stainless steel or quartz sample chamber on diffraction information of samples, and improves the reliability of diffraction data.

Description

technical field [0001] The invention belongs to the technical field of neutron diffraction, and in particular relates to an alloy material used in a neutron diffraction sample chamber. Background technique [0002] Using neutron diffraction technology to study the hydrogen absorption and desorption process of hydrogen storage materials needs to be carried out at a certain temperature and pressure, so the requirements for the sample chamber are relatively strict, and it needs to be able to be sealed and resistant to high temperature and pressure. At present, the commonly used sample chambers in neutron diffraction experiments in the world are made of quartz tubes or stainless steel tubes. These two kinds of sample chambers have their own shortcomings, for example, the quartz tube itself will produce diffuse scattering packets on the diffraction peak, and some hydrogen storage materials will also be amorphous due to the absorption of hydrogen or deuterium, that is to say, hydr...

AI Technical Summary

Problems solved by technology

These two kinds of sample chambers have their own shortcomings, for example, the quartz tube itself will produce diffuse scattering packets on the diffraction peak, and some hydrogen storage materials will also be amorphous due to the absorption of hydrogen or deuterium, that is to say, hydrogen (deuterium ) compound sample itself will also produce diffuse scattering packets, which are difficult to separate from the diffuse packets generated in the sample chamber, which will affect the data quality and reduce the reliability of the refined results; The quartz tube is sealed by means of high temperature, and high temperature will not only lead to the precipitation of part of Si in the quartz tube, but also have the hidden danger of explosion.