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A high-temperature, highly chemically active liquid metal lithium wettability measurement system

A measurement system and liquid metal technology, applied in the field of fusion reactors, to achieve good results in experiments and data accumulation

Active Publication Date: 2017-01-11
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0007] The purpose of the present invention is to provide a measurement system for the wettability of liquid metal lithium with high temperature and strong chemical activity, so as to solve the problems of the wettability test of liquid metal lithium with high temperature and strong chemical activity in the prior art

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  • A high-temperature, highly chemically active liquid metal lithium wettability measurement system
  • A high-temperature, highly chemically active liquid metal lithium wettability measurement system
  • A high-temperature, highly chemically active liquid metal lithium wettability measurement system

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Embodiment Construction

[0024] Such as Figure 1-Figure 4 shown. As an image analysis instrument, its basic components are vacuum chamber, vacuum pumping and measuring system, sample stage and heating system, sample driving system, liquid lithium dropping system, light source, camera, and image processing system. Use a high vacuum environment to prevent oxidative denaturation on the surface of liquid lithium; use a cleverly designed double-valve structure or a precise argon pressure control system to control the dripping of liquid lithium; arrange armored heating wires and temperature measurement systems on the sample stage to achieve high-temperature liquid lithium Requirements for lithium wettability measurement; measure the contact angle of liquid lithium on the substrate by image analysis method and compiled Matlab batch processing program.

[0025] The vacuum chamber is a measuring chamber for the wettability of liquid lithium. It is made of stainless steel, cylindrical, and adopts a knife-edge...

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Abstract

The invention discloses a system for measuring the wettability of high-temperature and high-chemical-activity liquid metal lithium. The system comprises a vacuum chamber, a vacuum air-extraction and measurement system, a sample table, a heating system, a sample driving system, a liquid lithium dropping-in system, a light source, a camera and an image processing system. The oxidization denaturation of the surface of the liquid lithium is stopped in a high-vacuum environment; the liquid lithium dropping-in system with ingenious design implements dropping-in of the liquid lithium; a heating wire and a temperature measurement system are arranged on the sample table in a sheathed manner, so that a requirement on the measurement of the wettability of the high-temperature liquid lithium is met; a contact angle of the liquid lithium on a substrate is measured by an image analysis method and through a programmed Matlab batch processing program. The system provided by the invention can be used for quickly, economically and effectively testing the wettability of the high-temperature and high-chemical-activity liquid metal lithium to the surface of the substrate and supplies excellent experiment and data accumulation to possible application of a first wall of the liquid lithium to a future fusion reactor.

Description

technical field [0001] The invention relates to the field of fusion reactors, in particular to a measuring system for the wettability of liquid metal lithium with high temperature and strong chemical activity. Background technique [0002] With the continuous upgrading of fusion devices, the high thermal load of the plasma first wall (PFC) is increasing, and the interaction between the plasma and the first wall is getting stronger and stronger, and the damage and corrosion of the first wall caused by this will also be intensified. . In order to withstand the bombardment of high-temperature plasma, reduce the radiation damage on the surface of the first wall, prolong the service life of the first wall, reduce impurity radiation and improve plasma performance, it is necessary to study a new type with strong thermal load output capability. , and the first wall capable of self-healing. [0003] Compared with other first-wall materials, Lithium has greater advantages, that is, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N13/00
Inventor 左桂忠胡建生任君孙震
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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