Hollow-pipe micro-lattice ceramic material constructed by adopting template method and preparation method thereof

A ceramic material and micro-array technology, which is applied in metal material coating technology, vacuum evaporation plating, ion implantation plating, etc., can solve the problems of difficult processing and inability to process, and achieve short preparation cycle, good effect and high precision. high effect

Inactive Publication Date: 2015-06-10
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3D printing is also known as additive manufacturing. It does not require tools and molds. It can quickly and accurately manufacture complex structural parts on one device using a 3D CAD model, thereby realizing "free manufacturing" and solving problems that are difficult or impossible to process in traditional processes. processing limitations

Method used

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  • Hollow-pipe micro-lattice ceramic material constructed by adopting template method and preparation method thereof
  • Hollow-pipe micro-lattice ceramic material constructed by adopting template method and preparation method thereof
  • Hollow-pipe micro-lattice ceramic material constructed by adopting template method and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Embodiment 1 proposes a kind of SLA construction template-sol-gel deposition ceramics-removing the template to prepare lightweight porous hollow tube micro-array silicon dioxide (SiO 2 ) The method for ceramic materials specifically includes three steps:

[0088] Step 1: using rapid prototyping technology to prepare a three-dimensional micro-array template;

[0089] The template of the diamond micro-lattice structure is prepared by photo-curing stereolithography (Stereo Lithography Appearance, SL or SLA), see Figure 5A shown.

[0090] The process parameters of photocuring molding are: the filling scanning speed is 300mm / s, the scanning distance is 0.1mm, the spot compensation diameter is 0.2mm, the support scanning speed is 100mm / s, the jumping speed is 600mm / s, and the waiting time between layers is 5s, the feed speed of the table is 5mm / s, and the immersion depth of the table is 6mm.

[0091] The template material used in photocuring molding is: composite photosensi...

Embodiment 2

[0108] What embodiment 2 proposes is a kind of adopting SLA to construct template-PECVD deposition ceramics-removing template to prepare lightweight porous hollow tube micro-lattice silicon nitride (Si 3 N 4 ) The method for ceramic materials specifically includes three steps:

[0109] Step 1: using rapid prototyping technology to prepare a three-dimensional micro-array template;

[0110] A template with a simple tetragonal micro-lattice structure is prepared using stereolithography technology (Stereo Lithography Appearance, SL or SLA), see Figure 6 shown.

[0111] The process parameters of the stereolithography technology (SLA) are: the filling scanning speed is 300mm / s, the scanning distance is 0.1mm, the spot compensation diameter is 0.2mm, the supporting scanning speed is 100mm / s, the jumping speed is 600mm / s, the layer The waiting time between them is 5s, the feed speed of the worktable is 5mm / s, and the immersion depth of the worktable is 6mm.

[0112] The template ...

Embodiment 3

[0124] The present invention proposes a method for preparing a lightweight porous hollow tube micro-lattice ceramic material by using FDM to construct a template-PECVD deposited ceramics-removing the template, which specifically includes three steps:

[0125] Step 1: using rapid prototyping technology to prepare a three-dimensional micro-array template;

[0126] The template of the diamond micro-lattice structure was prepared by Fused Deposition Modeling (FDM).

[0127] The process parameters used in fusion deposition molding (FDM) are: layer thickness: 0.1mm, nozzle temperature 230°C.

[0128] The template material for fusion deposition molding (FDM) is polylactic acid (PLA).

[0129] The size of the lattice in the diamond micro-lattice structure template is: the diameter of each column is 0.6mm, and the distance between nodes is 1.2mm.

[0130] Step 2: Depositing a ceramic thin film on the surface of the three-dimensional micro-array template to obtain a preformed structur...

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Abstract

The invention discloses a hollow-pipe micro-lattice ceramic material constructed by adopting a template method and a preparation method thereof. The method comprises the steps: preparing a three-dimensional micro-lattice polymer template of a designed structure by adopting a rapid forming technology; depositing ceramics on the surface of the micro-lattice polymer template so as to prepare a preformed body; removing a template, thereby obtaining the hollow-pipe micro-lattice ceramic material. According to the hollow-pipe micro-lattice ceramic material constructed by adopting the template method and the preparation method thereof, the template method and a thin-film deposition method are organically combined, and the prepared lightweight and porous hollow-pipe micro-lattice ceramic material has the characteristic of low density and the properties of high strength, high modulus, high hardness, high-temperature resistance, corrosion resistance, radiation resistance, small thermal expansion coefficient and the like and is a multifunctional, lightweight and porous micro-lattice material. The hollow-pipe micro-lattice ceramic material is applied to the fields of aviation, aerospace, electronic information and the like.

Description

technical field [0001] The invention relates to the preparation of ceramic materials, more particularly, refers to a hollow tube micro-lattice ceramic material constructed by a template method and a preparation method thereof, belonging to the technical field of lightweight porous functional materials. Background technique [0002] The progress of human society is premised on the development of materials. Materials with excellent performance promote the development of society. At the same time, the high development of society also calls for the advent of new materials. With the development of science and technology, the performance requirements of materials are getting higher and higher, and low-density materials are getting more and more attention. Ultra-light materials have excellent specific strength, specific stiffness and heat resistance, and also have good structural properties. and physical and chemical properties. In addition, ultra-light materials also show many un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/30C23C16/34C23C16/01C23C14/06C23C18/12B29C67/00
Inventor 杨青林周永风郭林江雷
Owner BEIHANG UNIV
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