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Method, system and device for measuring microstructure evolution of energetic material

A technology of microstructure evolution and measurement method, applied in the field of energetic materials, which can solve problems such as restricted static or quasi-static loading conditions, imperfect research on energetic materials, and inability to directly correspond to experimental data and actual physical processes.

Pending Publication Date: 2021-09-17
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the limitation of research methods, the research on the phase transition of energetic materials and the equation of state of energetic materials is not perfect.
[0003] Under dynamic load conditions, interface velocity measurement is often used to analyze the dynamic response characteristics of energetic materials, but this method is an indirect measurement method, and the obtained experimental data cannot directly correspond to the actual physical process.
Although X-ray diffraction, Raman spectroscopy and other methods can be used to obtain the evolution process of the microstructure of the sample, due to the limitation of light source intensity and time resolution, these methods are mostly limited by static or quasi-static loading conditions.

Method used

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  • Method, system and device for measuring microstructure evolution of energetic material
  • Method, system and device for measuring microstructure evolution of energetic material
  • Method, system and device for measuring microstructure evolution of energetic material

Examples

Experimental program
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Effect test

Embodiment 1

[0051] like figure 1As shown, this embodiment provides a method for measuring the microstructure evolution of energetic materials, including:

[0052] Step 101, acquiring a free surface velocity history curve of the energetic material; the free surface velocity history curve is obtained after the first laser beam irradiates the energetic material composite target. Specifically, the first laser beam is a nanosecond laser beam, and the energetic material composite target includes an energetic material; the nanosecond laser beam drives the energetic material composite target to generate a high temperature inside the energetic material High pressure state. While laser loading the energetic material, the free surface velocity history curve of the energetic material is obtained.

[0053] Step 102, acquiring the diffraction data of the energetic material; the diffraction data is obtained after the X-ray source irradiates the composite target of the energetic material, and the diffr...

Embodiment 2

[0063] like image 3 As shown, this embodiment provides a measurement system for microstructure evolution of energetic materials, including a free surface velocity history curve acquisition module 201 , a diffraction data acquisition module 202 and a microstructure evolution characteristic determination module 203 .

[0064] The free surface velocity history curve acquisition module 201 is used to acquire the free surface velocity history curve of the energetic material; the free surface velocity history curve is obtained after the first laser beam irradiates the energetic material composite target.

[0065] The diffraction data acquisition module 202 is used to acquire the diffraction data of the energetic material; the diffraction data is obtained after the X-ray source irradiates the composite target of the energetic material; the X-ray source is the composite backlight irradiated by the second laser beam obtained after the target.

[0066] The microstructure evolution cha...

Embodiment 3

[0072] like Figure 4 As shown, this embodiment provides a measurement device for the microstructure evolution of energetic materials, including a first laser source, a second laser source, a composite target for energetic materials, a composite backlight target 6, a diffraction data acquisition component, and a data processor; The data processor has a built-in measurement system for the microstructure evolution of energetic materials provided in Embodiment 2. The first laser source is used to emit a first laser beam 50 to the energetic material composite target; the second laser source is used to emit a second laser beam 51 to the composite backlight target 6 to generate an X-ray source, Wherein the composite backlight target 6 is arranged on the composite backlight target frame 7; the X-ray source is used to irradiate the energetic material composite target to carry out X-ray diffraction, which produces Figure 4 The X-ray diffraction cone 52 in the middle; the diffraction ...

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Abstract

The invention relates to a method, a system and a device for measuring microstructure evolution of an energetic material, which relate to the field of energetic materials. The method comprises the following steps of acquiring a free surface speed historical curve of an energetic material, wherein the free surface speed historical curve is obtained after the energetic material composite target is irradiated by a first laser beam, acquiring diffraction data of the energetic material, wherein the diffraction data is obtained after an X-ray source irradiates the energetic material composite target, and the X-ray source is obtained after a second laser beam irradiates a composite backlight target, and determining the microstructure evolution characteristics of the energetic material according to the diffraction data and the free surface speed historical curve. Therefore, direct measurement of the evolution characteristics of the microstructure of the energetic material is realized, and the method has important significance on dynamic response research of the energetic material.

Description

technical field [0001] The invention relates to the field of energetic materials, in particular to a measurement method, system and device for the microstructure evolution of energetic materials. Background technique [0002] Energetic materials are an important component of high-performance weapons; the research on the microstructure of energetic materials (including the phase transition of energetic materials, the research on the state equation of energetic materials, etc.) is of great significance for the practical application of energetic materials . At present, due to the limitation of research methods, the research on the phase transition of energetic materials and the equation of state of energetic materials is not perfect. [0003] Under dynamic load conditions, interface velocity measurement is often used to analyze the dynamic response characteristics of energetic materials, but this method is an indirect measurement method, and the obtained experimental data cann...

Claims

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Application Information

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IPC IPC(8): G01N23/207
CPCG01N23/207
Inventor 席涛辛建婷何卫华税敏储根柏赵永强
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS