Porous nickel with cross-scale multistage pore structure and preparation method and application thereof
A porous structure and multi-level pore technology, which is applied in the field of porous metal materials, can solve the problems that the size and structure of the pores are difficult to control and adjust, and affect the application of porous nickel, and achieve rapid and efficient preparation methods, adjustable structure, and large specific surface area. Effect
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[0020] The method for preparing porous nickel with a cross-scale hierarchical porous structure provided by the application includes the following steps:
[0021] Modeling: Use software to design a three-dimensional model of the porous structure.
[0022] As an option, the software for designing the three-dimensional model of the porous structure can be Solidworks, AutoCAD or UG software, etc.
[0023] Preferably, the porosity of the three-dimensional model of the porous structure and the porous nickel product of the cross-scale multi-level porous structure in the present application can be 40-90%, for example, it can be 40%, 50%, 60%, 70%, 80% or 90%, etc., can also be 45%, 55%, 65%, 75% or 85%, etc., and can also be any porosity value in the range of 40-90%.
[0024] It is worth noting that in this application, the porosity in the three-dimensional model of the porous structure can be uniformly the same porosity value (that is, the porosity in different regions is the same),...
Embodiment 1
[0050] This embodiment provides a porous nickel with a cross-scale multi-level pore structure. The porous nickel with a cross-scale multi-level pore structure has a first-level hole with a pore diameter of 600 μm and a second-level hole with a pore size of 200-800 nm, that is, the second level. The pore diameters of the order holes are not all the same, but there are 200nm, 800nm, and between 200nm and 800nm.
[0051] The porous nickel with cross-scale multi-level pore structure is prepared by the following preparation method:
[0052] (1) Modeling: AutoCAD software is used to design the porous structure model. The basic unit of the porous structure is a cube structure, and the porous structure is obtained by continuously translating, copying and accumulating the basic unit along the XY direction and the XZ direction. The porosity of the porous structure is 70%, and the pore diameter of the primary pores is 600 μm.
[0053] (2) Transformation: Magics software is used to edit...
Embodiment 2
[0061] This embodiment provides a porous nickel with a cross-scale multi-level pore structure, which has first-level pores with a diameter of 1000 μm and second-level pores with a diameter of 10 μm.
[0062] The porous nickel with cross-scale multi-level pore structure is prepared by the following preparation method:
[0063] (1) Modeling: use Solidworks software to design a porous structure model. The basic unit of the porous structure is a diamond structure, and the porous structure is obtained through continuous translation, replication and accumulation of the basic unit along the XY and XZ directions. The porosity of the porous structure is 40%, and the pore diameter of the primary pores is 1000 μm.
[0064] (2) Transformation: Magics software is used to edit the 3D model of the porous structure to convert the 3D model into a 2D slice model to obtain layered section profile data, and generate corresponding processing programs in the software according to the profile data....
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