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Boron carbide-based multiphase ceramic and preparation method and device thereof

A composite ceramic and boron carbide-based technology, which is applied in the field of ceramic materials, can solve problems such as singleness, and achieve the effect of good hardness and good toughness

Active Publication Date: 2021-01-12
沈阳中钛装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above functions cannot be realized only by a single composition and sintering system

Method used

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  • Boron carbide-based multiphase ceramic and preparation method and device thereof
  • Boron carbide-based multiphase ceramic and preparation method and device thereof
  • Boron carbide-based multiphase ceramic and preparation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] This embodiment provides a 3D printing device, such as figure 1 shown, including:

[0075] Extrusion unit, the extrusion unit includes a first slurry barrel 1, a second slurry barrel 3 and a third slurry barrel 5; the first slurry barrel 1, the second slurry barrel 3 and the The third slurry barrel 5 is respectively used for extruding reinforced and hardened slurry, medium-hard and medium-tough buffer slurry and reinforced and toughened slurry;

[0076] A curing unit, the curing unit includes an ultraviolet light source generator 10, a first light emitting device 2, a second light emitting device 4 and a third light emitting device 6; the ultraviolet light source generator 10 is connected to the first light emitting device 2, the The second light emitting device 4 and the third light emitting device 6 are connected and arranged; the first light emitting device 2, the second light emitting device 4 and the third light emitting device 6 are respectively used for curing t...

Embodiment 2

[0084] This embodiment provides a boron carbide-based composite phase ceramic (thickness is 5.5mm), such as figure 2 As shown, it includes a strengthening and hardening layer, a medium-hard and medium-tough buffer layer and a strengthening and toughening layer that are stacked in sequence;

[0085] Wherein, the reinforced and hardened layer includes reinforced and hardened powder, based on the total mass of the reinforced and hardened powder, the reinforced and hardened powder includes the following components in mass percentage:

[0086]

[0087] The medium-hard and medium-tough cushioning layer includes medium-hard and medium-tough cushioning powder, based on the total mass of the medium-hard and medium-tough cushioning powder, the medium-hard and medium-tough cushioning powder includes the following components in mass percentage :

[0088] Boron carbide powder (D50≤0.5μm) 90wt%

[0089] SiC(D50≤0.5μm) 5wt%

[0090] al 2 o 3 Powder (D50≤1μm) 5wt%;

[0091] The stre...

Embodiment 3

[0117] This embodiment provides a boron carbide-based composite phase ceramic (thickness is 9.5mm), such as figure 2 As shown, it includes a strengthening and hardening layer, a medium-hard and medium-tough buffer layer and a strengthening and toughening layer that are stacked in sequence;

[0118] Wherein, the reinforced and hardened layer includes reinforced and hardened powder, based on the total mass of the reinforced and hardened powder, the reinforced and hardened powder includes the following components in mass percentage:

[0119]

[0120] The medium-hard and medium-tough cushioning layer includes medium-hard and medium-tough cushioning powder, based on the total mass of the medium-hard and medium-tough cushioning powder, the medium-hard and medium-tough cushioning powder includes the following components in mass percentage :

[0121] Boron carbide powder (D50≤0.5μm) 87wt%

[0122] SiC (D50≤0.5μm) 10wt%

[0123] Al 2 o 3 Powder (D50≤1μm) 3wt%;

[0124] The st...

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Abstract

The invention relates to the technical field of ceramic materials, in particular to boron carbide-based composite ceramic and a preparation method and device thereof. The boron carbide-based multiphase ceramic with a gradient function is obtained by adjusting components (taking a photosensitive resin system with low ash content and a photoinitiator as carriers) and subsequent pulping, molding andpost-treatment steps (adopting a three-time glue discharging technology, strengthening a degreasing and glue discharging process and controlling the carbon content in a sintered body) so that the compatibility of material specificity is realized, and maximization of material functions is achieved; meanwhile, simple spatial linear distribution is realized to meet the requirements of various workingconditions. The 3D printing device is based on a photocuring molding technology (SLA), near-net-shape molding is achieved, individuation is high, three-gradient feeding is achieved through the threeslurry barrels, and therefore the boron carbide-based multiphase ceramic of a three-layer structure is prepared.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a boron carbide-based composite phase ceramic and a preparation method and device thereof. Background technique [0002] In recent years, boron carbide ceramics has become a leader in the armor protection family due to its excellent physical and chemical properties. At this stage, research on boron carbide ceramics is mostly limited to the design of components, that is, by adding a small amount of reinforcing phase to overcome boron carbide. Due to the disadvantages of poor sintered compactness and poor toughness, there are very few structural designs for boron carbide ceramics, which are mostly due to the contradictory properties of the material. [0003] Taking the bulletproof insert plate as an example, the multi-curved front surface absorbs the initial kinetic energy by breaking, so the hardness and strength of the curved surface are required to be high enough; whil...

Claims

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Application Information

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IPC IPC(8): C04B35/563C04B35/622B33Y30/00B33Y70/00B33Y10/00B28B1/00B28B3/00B28B11/24B28B17/00
CPCC04B35/563C04B35/622B33Y30/00B33Y70/00B33Y10/00B28B1/001B28B3/003B28B11/243B28B17/0081C04B2235/3232C04B2235/402C04B2235/405C04B2235/3826C04B2235/3217C04B2235/3229C04B2235/6026
Inventor 王宏孟庆海郭方慧孙宏伟钟军
Owner 沈阳中钛装备制造有限公司
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