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In-situ Observation Device and Observation Method for Liquid Metal Solidification in Microgravity State

A liquid metal, observation device technology, applied in the investigation phase/state change and other directions, can solve the problems of low loading accuracy and efficiency, improve accuracy and efficiency, avoid manual operation, and reduce the possibility of false touch and over-adjustment. Effect

Active Publication Date: 2021-11-02
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention proposes a liquid metal solidification in-situ observation device and observation method in a microgravity state, and observes the liquid metal solidification process in a microgravity suspension state. The operation is simple, and it can solve the problem of existing ultrasonic suspension device samples. The problem of loading accuracy and low efficiency

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  • In-situ Observation Device and Observation Method for Liquid Metal Solidification in Microgravity State

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Embodiment Construction

[0035] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0036] An in-situ observation device for liquid metal solidification in a microgravity state of the present invention includes an ultrasonic suspension system and a sound field visualization system; the ultrasonic suspension system includes a transparent cover 1, an ultrasonic transducer 2, a horn 3, an acoustic emission End 4, acoustic reflection end 5, cooling copper pipe 6, electric adjustment support 7, support base 8, support rod 9, observation camera 10, ultrasonic generator 11; The sound field visualization system includes light source 12, front convex lens 13, rear Convex lens 14, knife edge 15, observation camera 16.

[0037] The material of the transparent cover 1 is optically transparent quartz glass, which is sealed and connected with the support base 8 by a reinforced flexible pad to form a closed cavity; in the cavity, the ultrasonic transducer...

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Abstract

The invention discloses an in-situ observation device and method for liquid metal solidification in a microgravity state. The device includes an ultrasonic suspension system and a sound field visualization system; the ultrasonic suspension system is used to suspend liquid metal samples in the air, and the sound field The visualization system is used to display the generated acoustic standing wave field and observe the change of the acoustic standing wave field in the cooling process of liquid metal in microgravity state in real time. The invention can observe the solidification process of the liquid metal in situ under the microgravity state.

Description

technical field [0001] The invention relates to an in-situ observation device and an observation method for liquid metal solidification in a microgravity state, and belongs to the technical field of material container-free processing. Background technique [0002] The liquid metal studied in this invention is different from traditional mercury and alkali metal materials, mainly referring to gallium and its alloys (such as gallium-indium alloy, gallium-indium-tin alloy, etc.) and bismuth-based alloys (such as bismuth-indium-tin alloy). It is a safe and non-toxic low-melting metal material with a melting point around room temperature. Liquid metal has excellent electrical and thermodynamic properties due to its amorphous liquid state. The inherent high thermal conductivity endows liquid metal with excellent convective heat transfer capabilities. Liquid metal is used to replace the traditional cooling fluid represented by water. It breaks the capacity limit of traditional cool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/02
CPCG01N25/02
Inventor 孙东科王学舟倪中华毛士麟
Owner SOUTHEAST UNIV