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Charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and preparation method thereof

A technology of density gradient and charged particles, which is applied in the direction of coating, metal material coating process, gaseous chemical plating, etc., can solve the problems of poor radiation protection performance, achieve improved radiation protection ability, uniform and controllable thickness, and improve bonding effect of ability

Active Publication Date: 2020-11-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a density gradient type high hydrogen storage composite film resistant to charged particle irradiation and its preparation method. To solve the technical problem of poor radiation protection performance of spacecraft structural functional materials, the present invention adopts atomic layer deposition Technology deposits ZnO film on the surface of cobalt-sulfur metal compound, and then prepares high hydrogen storage cobalt-sulfur metal compound through high-energy ball milling technology, and combines it with resin material to construct a composite film structure with density gradient distribution

Method used

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  • Charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and preparation method thereof
  • Charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and preparation method thereof
  • Charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and preparation method thereof

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Embodiment 1

[0029] Embodiment 1: In this embodiment, a preparation method of a density gradient type high hydrogen storage composite membrane layer resistant to charged particle irradiation is realized by the following steps:

[0030] Step 1, in the Co with average particle diameter of 500nm 9 S 8 Deposit ZnO film on the surface of nanoparticles to obtain ZnO-Co 9 S 8 ,specifically is:

[0031] Will Co 9 S 8 The nanoparticles are placed in the deposition chamber, and the vacuum is evacuated to a vacuum degree of 5×10 -3 Torr, then feed high-purity nitrogen gas with a mass concentration of 99.99% until the pressure in the deposition chamber is 0.15 Torr, keep the chamber temperature at 150°C, and repeat 230 growth and deposition cycles;

[0032] In step 1, the Co 9 S 8 The ZnO thin film is deposited on the surface of the nanoparticles, specifically through the following operations:

[0033] Will Co 9 S 8 The nanoparticles are placed in the deposition chamber, and the vacuum is e...

Embodiment 2

[0052] Embodiment 2: This embodiment differs from Embodiment 1 in that, according to Co 9 S 8 The mass ratio of ZnO-Co obtained in step 1 is 4:1 with graphene 9 S 8 Add in graphene, other steps and parameter are all identical with embodiment 1.

Embodiment 3

[0053] Embodiment 3: This embodiment differs from Embodiment 1 in that, according to Co 9 S 8 The mass ratio of ZnO-Co obtained in step 1 is 6:1 with graphene 9 S 8 Add in graphene, other steps and parameter are all identical with embodiment 1.

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Abstract

The invention provides a charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and a preparation method thereof, and belongs to the field of spacecraft structural functional materials. The technical problem of the poor radiation-proof property of the spacecraft structural functional materials is solved. An atomic layer deposition technology is adopted to deposit a ZnO thin film on the surface of a cobalt-sulfur metal compound, then a high-hydrogen-storage cobalt-sulfur metal compound is prepared through a high-energy ball milling technology, and the high-hydrogen-storage cobalt-sulfur metal compound is composited with a resin material to construct a composite film layer structure with density gradient distribution; and hydrogen has a certain subtractive effect on bremsstrahlung, resin has the large density and can effectively block irradiation of high-energy particles, through mutual compositing of different density materials, the binding capacity of a hydrogen-storage material and a matrix is improved advantageously, and spatial irradiation-resistant reinforcing is achieved.

Description

technical field [0001] The invention belongs to the field of structural functional materials for spacecraft. The invention relates to a density gradient type high hydrogen storage composite membrane layer resistant to charged particle irradiation and a preparation method thereof. Background technique [0002] During its in-orbit period, the spacecraft has to withstand environmental tests such as space vacuum, cold and hot cycles, ultraviolet radiation and high-energy particle radiation, especially high-energy particles can penetrate the skin of the spacecraft and cause the performance of electronic components to degrade and reduce reliability. As the radiation dose increases, the total dose effect will occur, which will further affect the performance and life of electronic components. Therefore, how to improve the radiation protection performance of spacecraft structural functional materials and improve the service life of satellites is an urgent problem to be solved. [00...

Claims

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Application Information

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IPC IPC(8): C23C16/40C23C16/455C23C16/56
CPCC23C16/407C23C16/45525C23C16/56
Inventor 吴晓宏李杨欧学东姜利祥李涛杨晓宁
Owner HARBIN INST OF TECH
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