In-situ real time observation device with X-ray fluoroscopy

Abstract

The present invention relates to an in-situ real time observation device with X-ray fluoroscopy, which comprises a seal box and an X-ray unit capable of emitting X-ray through the seal box. The seal box comprises a sample unit for placing a sample, a heating unit for heating the sample unit, a heat preservation unit and a temperature measuring unit. A box cover of the seal box is sealed from the box body. The heat preservation unit comprises a lower insulation layer and an upper insulation layer above the lower insulation layer. The temperature measuring unit is composed of a temperature thermocouple and a double-hole tube protecting the temperature thermocouple. The heating unit includes a heating metal wire and a high temperature resistant ceramic wafer with uniformly spaced grooves. A combination of the sample unit and the heating unit is placed in a sample groove of the lower insulation layer; the temperature measuring unit is placed in a thermocouple placement groove of the lowerinsulation layer; extension wires of the heating unit and the temperature thermocouple are connected with a connector of the box body; and a vacuum valve arranged on the box body is used for evacuation. The invention is helpful to reveal the melt structure and solidification mechanism of a material.

Description

technical field [0001] The invention belongs to the technical field of X-ray fluoroscopy real-time observation, and relates to an X-ray fluoroscopy in-situ real-time observation device, in particular to an X-ray fluoroscopy in-situ real-time observation device for real-time observation of the melting and solidification process of a high-temperature melt by using X-rays. Background technique [0002] X-ray diffraction observation technology is widely used in the study of metal melt structure and interface. The principle is to use X-rays to interact with regularly arranged atoms inside the melt to produce coherent scattering, obtain internal atomic arrangement information, and obtain characteristics reflecting its structure. parameter. [0003] The surface and interface phenomena of high-temperature melts are very common in the fields of metallurgy, chemical industry, molten salt, and material science. It is of great significance to measure the interface movement during the so...

AI Technical Summary

Problems solved by technology

The experimental method is to put the sample in the corundum crucible and put it into the sample chamber. After vacuuming and filling the protective gas, the heating plate located at the bottom of the corundum crucible is used to heat and melt the sample. It is impossible to fully heat the sample and form a controllable temperature field gradient.

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