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Divertor module and manufacturing method

A divertor and gradient alloy technology, applied in nuclear reactors, nuclear power generation, climate sustainability, etc., can solve problems such as interface failure and large thermal stress, and achieve the effect of improving interface bonding strength and relieving thermal stress

Active Publication Date: 2015-11-11
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the significant difference in the thermophysical properties of W and Cu, there is a large thermal stress at the W / Cu interface, which easily leads to interface failure

Method used

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  • Divertor module and manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The mixed powder of W and Cu is loaded into a graphite crucible and pressed into a billet, and a tungsten wire array is preset in the billet. Then Al powder and CuO powder are uniformly mixed according to the molar ratio of Al:CuO=2:3 and pressed into a billet, which is placed on the mixed powder billet of W and Cu. The graphite crucible is placed in the centrifugal force field (centrifugal force is 1000r / min), and the mixed powder compact of Al and CuO is ignited by electric heating, and the mixed powder compact of Al and CuO undergoes a violent combustion reaction, and the resulting high-temperature Cu melts The body rapidly infiltrates into the mixed powder blank of W and Cu under the action of centrifugal force. After the reaction is completed, the obtained product is divided into three layers, the upper layer is Al 2 o 3 , the middle layer is pure Cu, and the lower layer is a W / Cu gradient alloy containing tungsten wire arrays. Al 2 o 3 Remove, then smooth the...

Embodiment 2

[0040] The mixed powder of W and Cu is loaded into a graphite crucible and pressed into a billet, and a tungsten wire array is preset in the billet. Then Al powder and CuO powder are uniformly mixed according to the molar ratio of Al:CuO=2:3 and pressed into a billet, which is placed on the mixed powder billet of W and Cu. Put the graphite crucible in the centrifugal force field (centrifugal force is 5000r / min), and ignite the mixed powder blank of Al and CuO by means of electric heating, the mixed powder blank of Al and CuO undergoes a violent combustion reaction, and the high-temperature Cu melt produced Under the action of centrifugal force, it quickly penetrates into the mixed powder blank of W and Cu. After the reaction is completed, the obtained product is divided into three layers, the upper layer is Al 2 o 3 , the middle layer is pure Cu, and the lower layer is a W / Cu gradient alloy containing tungsten wire arrays. Al 2 o 3 Remove, then smooth the upper and lower ...

Embodiment 3

[0043] The mixed powder of W and Cu is loaded into a graphite crucible and pressed into a billet, and a tungsten wire array is preset in the billet. Then Al powder and CuO powder are uniformly mixed according to the molar ratio of Al:CuO=2:3 and pressed into a billet, which is placed on the mixed powder billet of W and Cu. Put the graphite crucible in the centrifugal force field (centrifugal force is 10000r / min), ignite the mixed powder blank of Al and CuO by means of electric heating, the mixed powder blank of Al and CuO undergoes violent combustion reaction, and the high temperature Cu melt produced Under the action of centrifugal force, it quickly penetrates into the mixed powder blank of W and Cu. After the reaction is completed, the obtained product is divided into three layers, the upper layer is Al 2 o 3, the middle layer is pure Cu, and the lower layer is a W / Cu gradient alloy containing tungsten wire arrays. Al 2 o 3 Remove, then smooth the upper and lower surfac...

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Abstract

The invention discloses a divertor module and a manufacturing method. The divertor module is formed by a three-layer structure of a pure Cu layer, a W / Cu gradient alloy layer and a pure W layer. An interface position of the pure W layer and the W / Cu gradient alloy layer is provided with a tungsten filament array. A through hole channel is arranged in the pure Cu layer. A metallurgical bonding is arranged between the pure Cu layer and the W / Cu gradient alloy layer. The divertor module possesses the characteristics that a gradient middle layer is used to mitigate a thermal stress and a tungsten filament array reinforcement structure is used to increase interface combination intensity.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to a divertor module and a preparation method thereof. Background technique [0002] Magnetic confinement nuclear fusion is an important way to solve the future energy problems of mankind. The divertor is one of the most severe components in the magnetic confinement fusion reactor, and needs to withstand more than 10MW / m 2 high heat load. The material selection and structural design of the divertor have an important impact on its service performance [0003] At present, the divertor generally adopts W / Cu composite material and water-cooled structure. The characteristic of this structure is that W material with high melting point is used on the side of the divertor facing the plasma, and Cu material with high thermal conductivity is used as the heat sink on the other side, and a water cooling channel is processed in the Cu heat sink. Due to the significant...

Claims

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Application Information

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IPC IPC(8): G21B1/13
CPCY02E30/10
Inventor 刘光华李江涛郭世斌贺刚杨增朝
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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