A device and method for solidification experiments of material samples in a simulated microgravity environment

Abstract

The invention provides a device of a material sample solidification test for simulating a microgravity environment. The device comprises a vacuum vessel (1), an electrostatic suspension control and release device (2), a heater (3), a temperature measuring instrument (4), a short drop pipe (5), a recovery tray (6) and a camera (7), wherein the vacuum vessel (1) is a vacuum closed vessel; the electrostatic suspension control and release device (2) is arranged on top inside the vacuum vessel (1) and is used for controlling a material sample to stay in a suspension state or a dropping state; the material sample drops into the recovery tray (6) through the short drop pipe (5), and the recovery tray (6) is arranged on the bottom of the vacuum vessel (1); the heater (3), the temperature measuring instrument (4) and the camera (7) are arranged outside the vacuum vessel (1), and the heater (3) is used for heating the sample to be in a molten state; the temperature measuring instrument (4) is used for measuring the temperature of the material sample; the temperature measuring instrument is connected with the electrostatic suspension control and release device (2) through a signal wire.

Description

technical field [0001] The invention relates to the field of space material science research, in particular to a device and method for solidification experiments of material samples in a simulated microgravity environment. Background technique [0002] Space material science, as an important branch in the field of space science and application, is an extension of traditional material science to the space environment, and is the most active frontier in developing new theories of material science, exploring new materials preparation processes and expanding new fields of material applications One of interdisciplinary subjects. Space has special effects such as microgravity, ultra-vacuum, no container, and strong radiation. It is an ideal experimental condition for studying material melting and solidification. However, the space resources that people can use so far are still very limited. Therefore, ground-based methods for simulating various effects in the space environment ha...

AI Technical Summary

Problems solved by technology

[0008] (2) The sample falls in the long drop tube, and the speed before recovery is high. The impact during the recovery process will cause damage to the sample that is still at high temperature, and even the sample will appear recrystallization and other phenomena, covering up the intrinsic information of the sample

[0009] (3) The drop tube is long, the probability that the free-falling sample will hit the tube wall increases, and the success rate of recovering the sample decreases

[0010] (4) The long drop pipe equipment is huge, the operation is complicated, and the price is expensive

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