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Method and device for high-throughput characterization of heat and structure during melting-solidification of crystalline materials

A technology of crystal materials, melting process, applied in the direction of measuring devices, thermal development of materials, analysis of materials, etc.

Active Publication Date: 2020-05-19
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to obtain the above information of crystal materials, it is necessary to carry out three different detection and analysis respectively. At present, there is no suitable method that can obtain the above information in real time, efficiently and simultaneously in one experiment.

Method used

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  • Method and device for high-throughput characterization of heat and structure during melting-solidification of crystalline materials
  • Method and device for high-throughput characterization of heat and structure during melting-solidification of crystalline materials
  • Method and device for high-throughput characterization of heat and structure during melting-solidification of crystalline materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this example, see figure 1 and figure 2 , a crystal melting-solidification high-throughput test and analysis device, mainly including two heating furnaces 2, a sample carrying device 3, a stage linkage device 4, an X-ray imaging device unit, an X-ray diffraction test device unit, a differential Composed of scanning calorimeter unit and main controller;

[0044] In the closed cavity of one of the heating furnaces 2, the sample carrying device 3 is set, and the AlSi 12 The crystal material to be tested is set on the sample carrying device 3, and the main controller can control the stage linkage device 4 to pull the sample carrying device 3 to rotate horizontally, thereby adjusting the AlSi on the sample carrying device 3. 12 The rotation angle of the crystal material to be measured; a reference object carrying device 6 is set in the closed inner cavity of another heating furnace 2, and an inert reference object is arranged on the reference object carrying device 6; th...

Embodiment 2

[0063] This embodiment is basically the same as Embodiment 1, especially in that:

[0064] In this embodiment, the main controller can also control the stage linkage device 4 to pull the sample carrying device 3 to perform a compound movement of horizontal rotation, horizontal displacement and lifting displacement, so that the crystal to be measured arranged on the sample carrying device 3 The material undergoes a spatial displacement transformation of the X, Y, and Z axes. The heating element for heating is made of iron-chromium-aluminum alloy; the heating resistance wire of the independent heating device 8 is made of iron-chromium-aluminum alloy; when the X-ray light source 1 performs X-ray irradiation, a transmission target and a reflection target are used, and the target material is tungsten; The protective gas used in the inert gas atmosphere in the heating furnace 2 is argon. The sample carrying device 3 can precisely rotate 360°, and the minimum rotation angle is less ...

Embodiment 3

[0067] This embodiment is basically the same as the previous embodiment, and the special features are:

[0068] In this embodiment, the relative position of the heating furnace 2 and the X-ray light source 1 is adjusted so that the distance between the heating furnace 2 and the X-ray light source 1 is the minimum value, so that the X-ray spot reaches a set small size, and the set High-resolution 2D or 3D tissue images. In this embodiment, when the stage linkage device 4 is operated, the distance between the furnace body device of the heating furnace 2 and the X-ray light source 1 is the minimum value, so that the X-ray light source 1 spot is smaller, and a higher resolution can be obtained. High 3D images. In this embodiment, differential scanning calorimetry is used to characterize the heat change during the crystal melting-solidification process in real time, and X-ray diffraction is used to analyze the structural information of the process in real time. During the crystal ...

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Abstract

The invention discloses a method and device for high-throughput characterization of heat and a structure in the process of crystal material melting and solidification. The method comprises characterizing the change of heat in the process of crystal melting and solidification in real time through a differential scanning calorimetry method, simultaneously, analyzing the structural information of theprocess in real time through X-ray diffraction, and in the crystal growth process after nucleation, observing the micro-structure evolution in real time through X-ray imaging. In one experiment, heatinformation in the crystal material melting-solidification process, melt structure change information along with temperatures before solidification and solidification micro-structure evolution information such as a solid / liquid interface advancing speed and dendritic crystal morphology when solidification are obtained. The device greatly shortens the research cycle of the crystal material melting-solidification process, realizes high-throughput characterization test analysis of the process heat and structure information in the same experiment and is used for the regulation and control of crystal material properties.

Description

technical field [0001] The present invention relates to a method and device for detection and analysis of physical and chemical properties of crystal materials, in particular to a method and device for detection and analysis of heat and structure of crystal materials during the melting-solidification process, and also to a high-throughput characterization method for crystal materials It is used in scientific research on the melting-solidification process of crystal materials and in the fields of heat measurement and structural analysis. Background technique [0002] For most crystalline materials, melting-solidification is the main preparation method. For a crystalline material system with a defined composition, its organization largely determines its properties. Even for the properties of materials that require further heat treatment or deformation after solidification, the initial solidified structure is still critical. Therefore, how to control the formation of the soli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20G01N23/046G01N23/207
CPCG01N23/046G01N23/207G01N25/20G01N2223/045G01N2223/056
Inventor 王江任忠鸣赵睿鑫刘小器时令
Owner SHANGHAI UNIV
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