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Preparation method of diamond-ceramic composite material based on photocuring molding

A ceramic composite material and light-curing molding technology, which is applied in the direction of diamond and additive processing, can solve the problems of reducing the mechanical properties of materials, affecting the curing and forming effect, and prone to graphitization, so as to reduce graphitization and improve curing molding effect, the effect of lowering the sintering temperature

Active Publication Date: 2021-07-23
JIHUA LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the color and refractive index of diamond particles are different from those of photocurable resins, the absorbance is different, which affects the curing and forming effect; in addition, diamond particles are prone to graphitization during high sintering temperature, which reduces the mechanical properties of the material

Method used

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  • Preparation method of diamond-ceramic composite material based on photocuring molding

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preparation example Construction

[0038] A kind of preparation method based on the diamond-ceramic composite material of photocuring molding, it is characterized in that, comprises the following steps:

[0039] Weighing diamond powder and titanium powder, through the molten salt method, realizes titanium coating on the surface of diamond 1, and obtains diamond titanium coating layer 2;

[0040] Coating paraffin on the surface of the diamond after titanium plating by ball milling to obtain a paraffin layer 3;

[0041] Weighing the secondary coated diamond particles and glass phase ceramic powder and mixing them uniformly in a ball mill, then drying in an oven, taking them out and sieving to obtain a diamond-glass phase ceramic mixed powder;

[0042] Put the obtained mixed powder, photocurable resin and dispersant into a homogenizer, and mix evenly to obtain a photocurable diamond-ceramic composite material slurry;

[0043] Then through the DLP printing in the additive manufacturing technology; and then through...

Embodiment 1

[0045] This embodiment provides a method for preparing a diamond-ceramic composite material based on photocuring, comprising the following steps:

[0046]Weigh diamond powder and titanium powder, and through the molten salt method, the diamond surface is coated with titanium; the surface of diamond after titanium coating is coated with paraffin wax by ball milling method; the diamond particles and glass phase ceramic powder after secondary coating are weighed in a ball mill Mix evenly in an oven, then dry in an oven, take it out and sieve to obtain a diamond-glass phase ceramic mixed powder; put the obtained mixed powder, photocurable resin and dispersant into a homogenizer, and mix evenly , to obtain light-cured diamond-ceramic composite slurry; then through DLP printing in additive manufacturing technology; and then through vacuum hot-pressing sintering, to obtain light-cured DLP printing diamond-glass phase ceramic composite parts. Among them, the diamond after the secondar...

Embodiment 2

[0063] This embodiment provides a method for preparing a diamond-ceramic composite material based on photocuring, comprising the following steps:

[0064] Weigh diamond powder and titanium powder, and through the molten salt method, the diamond surface is coated with titanium; the surface of diamond after titanium coating is coated with paraffin wax by ball milling method; the diamond particles and glass phase ceramic powder after secondary coating are weighed in a ball mill Mix evenly in an oven, then dry in an oven, take it out and sieve to obtain a diamond-glass phase ceramic mixed powder; put the obtained mixed powder, photocurable resin and dispersant into a homogenizer, and mix evenly , to obtain light-cured diamond-ceramic composite slurry; then through DLP printing in additive manufacturing technology; and then through vacuum hot-pressing sintering, to obtain light-cured DLP printing diamond-glass phase ceramic composite parts. Among them, the diamond after the seconda...

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Abstract

The invention provides a preparation method of a diamond-ceramic composite material based on photocuring molding, which comprises the following steps: weighing diamond powder and titanium powder, and plating titanium on the surface of diamond through a molten salt method to obtain a diamond titanium-plated layer; coating the titanium-plated surface of the diamond with paraffin through a ball milling method, and obtaining a paraffin layer; weighing the secondarily coated diamond particles and glass phase ceramic powder, uniformly mixing in a ball mill, then drying in a drying oven, taking out and sieving to obtain diamond-glass phase ceramic mixed powder; putting the obtained mixed powder, light-cured resin, a dispersing agent and the like into a homogenizer, and uniformly mixing to obtain light-cured diamond-ceramic composite material slurry; then, performing DLP printing in an additive manufacturing technology; and carrying out thermal sintering to obtain the photo-cured DLP printed part containing the diamond-glass phase ceramic composite material. The part prepared through the method has the beneficial effects of being high in forming precision, high in shape complexity and good in comprehensive mechanical property.

Description

technical field [0001] The invention belongs to the field of additive manufacturing of diamond-ceramic composite material parts, and relates to a method for photocuring DLP printing of diamond-glass phase ceramic composite material parts. Background technique [0002] Glass ceramics is a polycrystalline ceramic material obtained by controlling the crystallization of the glass body. It has many advantages such as high mechanical strength, adjustable thermal expansion performance, thermal shock resistance, chemical corrosion resistance, and low dielectric loss. It is widely used in machinery. Manufacturing, optics, electronics and microelectronics, aerospace, chemistry, industry, biomedicine and construction and other fields, such as pistons, rotating blades, laser housings, heat dissipation substrates, etc. Diamond has ultra-high hardness and wear resistance, especially high thermal conductivity and insulation properties. Combining with glass ceramics can greatly improve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/28C03C10/00C04B35/195C04B35/622C04B35/64B33Y10/00B33Y70/10
CPCC01B32/28C03C10/00C04B35/195C04B35/622C04B35/64B33Y10/00B33Y70/10C04B2235/427Y02P10/25
Inventor 吴书杰伍尚华邓欣
Owner JIHUA LAB
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