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Ground simulation test method of a spatial comprehensive environment effect of polymeric material used for spacecraft

A technology that aggregates materials and integrates the environment. It is used in material analysis using radiation, material analysis using wave/particle radiation, and material analysis. It can solve problems such as lack, and achieve the effect of simple steps, wide application prospects, and easy operation.

Inactive Publication Date: 2017-02-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the existing problem of lack of comprehensive research on single-factor and multi-factor affecting polymers and their composite materials of space vehicles by means of ground simulation

Method used

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  • Ground simulation test method of a spatial comprehensive environment effect of polymeric material used for spacecraft
  • Ground simulation test method of a spatial comprehensive environment effect of polymeric material used for spacecraft
  • Ground simulation test method of a spatial comprehensive environment effect of polymeric material used for spacecraft

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specific Embodiment approach 1

[0020] Specific implementation mode one: refer to Figure 1 to Figure 4 This embodiment is described in detail. A ground simulation test method for space comprehensive environmental effects of polymer materials for spacecraft described in this embodiment, the method includes:

[0021] Step 1. Place the temperature control device and the temperature control sample stage in the sealed cavity, the temperature control device is used to control the temperature of the temperature control sample stage, and the leads of the temperature control device are connected by the vacuum plug in the sealed cavity;

[0022] Step 2, preparing a test sample of the polymeric material to be tested with a thickness t, testing the initial performance parameters of the sample, and then placing the sample on a temperature-controlled sample stage;

[0023] Step 3. For the test sample in step 2, select the energy of incident electrons, incident protons and incident heavy ions, wherein the incident depth o...

Embodiment

[0030] The test sample is selected as a Teflon material with a thickness of 100 μm and an area of ​​1 cm×3 cm. The test condition is under vacuum condition, the vacuum degree is 10 -3 Pa. figure 2 The experimental results of the effects of vacuum and thermal cycles on the properties of Teflon materials under different doses of electron irradiation are given. In the figure, the thermal cycle conditions are: temperature range is -100°C to +50°C, the number of cycles is 200, and the heating and cooling rate is 5°C / min; the irradiation conditions are: electron energy 150keV, electron radiation flux 1e10e / cm 2 s. The irradiation area is 4cm×4cm, the irradiation unevenness is less than 5%, and the incident angle of electrons is perpendicular to the sample surface. Depend on figure 2 It can be seen that the degree of damage to the polymer material is greater when vacuum, thermal cycling, and irradiation exist simultaneously.

[0031] image 3The effects of different thermal cy...

specific Embodiment approach 2

[0033] Specific implementation mode two: this implementation mode is to further explain the ground simulation test method for space comprehensive environmental effects of polymer materials for spacecraft described in specific implementation mode one. In this embodiment mode, in step three, protons, heavy The irradiated area of ​​the test sample by ions and electrons should be at least 1.5 times the area of ​​the test sample.

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Abstract

The invention provides a ground simulation test method of a spatial comprehensive environment effect of a polymeric material used for spacecraft, and relates to the field of a spatial environment effect. The invention aims to solve the problem that the prior art is lack in the adoption of a ground simulation test to conduct comprehensive study on a polymer and a composite material thereof which affect a spatial spacecraft with single coefficient and multiple coefficients. The purpose of ground simulation of the spatial comprehensive environment effect of the polymer and the composite material thereof is achieved by choosing control vacuum degree and control thermal cycle temperature, adding electron energy and flux, proton energy and flux and heavy ion and flux simultaneously into a sealing cavity body or adding the electron energy and flux, the proton energy and flux and the heavy ion and flux in sequence. The ground simulation test method of the spatial comprehensive environment effect of the polymeric material used for spacecraft is used for ground simulation of the degree that the polymer material is damaged by the spatial comprehensive environment.

Description

technical field [0001] The invention relates to a ground simulation test of space comprehensive environmental effects of polymer materials, in particular to a test method capable of generating space comprehensive environmental effects in polymer materials, and belongs to the field of space environmental effects. Background technique [0002] Since the use of spacecraft for space exploration and research activities in 1957, human beings have made remarkable achievements in the fields of space science, aerospace technology and space resource utilization. For more than half a century, mankind has carried out a lot of space exploration, development and resource utilization. It has launched more than 5,000 various application satellites, built the "Mir" and α-space stations and space shuttles, and launched more than 130 satellites to the moon. Satellites and probes. Dozens of satellites and probes have been launched to Mars, and a large number of space activities have been carrie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01N23/02
CPCG01N17/00G01N23/02G01N2223/107G01N2223/104G01N2223/102G01N2223/3106G01N33/0003
Inventor 李兴冀刘超铭马国亮杨剑群
Owner HARBIN INST OF TECH
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