Method for preparing toughened aluminum oxide ceramic based on stereo lithography appearance namely 3D printing
A technology of alumina ceramics and light curing molding, which is applied in the field of 3D printing and can solve problems such as uneven structure
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Example Embodiment
[0052] Example 1
[0053] This embodiment is a specific embodiment of preparing an alumina ceramic product 1 using a method for preparing alumina ceramics provided by the present invention.
[0054] Step 1: prepare slurry
[0055] 20g of solute is dissolved in 80g of solvent, mixed and stirred to obtain premix 1. In this embodiment, the solute is methacrylamide and the solvent is glycerin.
[0056] After mixing 100 g of alumina ceramic powder, 300 g of ethanol and 1.5 g of dispersant, ball milling for the first time, the first product 1 is obtained. In the first ball milling, the milling medium was alumina, the diameter of the milling medium was 3mm, the shape of the milling medium was spherical, and the material-to-ball ratio was 2:1. In this embodiment, the alumina ceramic powder has a bimodal structure, the purity of the alumina ceramic powder is greater than 99%, and the alumina ceramic powder is α-Al 2 O 3 , The particle size of alumina ceramics is: 0.1-0.5μm; the dispersant is...
Example Embodiment
[0071] Example 2
[0072] This embodiment is a specific embodiment of preparing an alumina ceramic product 2 by using a method for preparing alumina ceramic provided by the present invention.
[0073] Step 1: prepare slurry
[0074] 35g of solute is dissolved in 65g of solvent, mixed and stirred to obtain premix 2. In this embodiment, the solute is dimethacrylate, and the solvent is glycerin and deionized water.
[0075] After mixing 100 g of alumina ceramic powder, 300 g of ethanol and 2.0 g of dispersant, ball milling for the first time, the first product 2 is obtained. In the first ball milling, the milling medium was alumina, the diameter of the milling medium was 3mm, the shape of the milling medium was spherical, and the material-to-ball ratio was 5:1. In this embodiment, the alumina ceramic powder has a bimodal structure, the purity of the alumina ceramic powder is greater than 99%, and the alumina ceramic powder is α-Al 2 O 3 , The particle size of alumina ceramics is: 0.1~0...
Example Embodiment
[0090] Example 3
[0091] This embodiment is a specific example of preparing an alumina ceramic product 3 by using a preparation method of alumina ceramic provided by the present invention.
[0092] Step 1: prepare slurry
[0093] 50g solute is dissolved in 50g solvent, mixed and stirred to obtain premix 3. In this embodiment, the solute is dimethacrylate and the solvent is deionized water.
[0094] After mixing 100 g of alumina ceramic powder, 300 g of ethanol and 2.5 g of dispersant, ball milling for the first time, the first product 3 is obtained. In the first ball milling, the ball milling medium is zirconia, the diameter of the ball milling medium is 1mm, the shape of the ball milling medium is spherical, and the material-to-ball ratio is 4:1. In this embodiment, the alumina ceramic powder has a bimodal structure, the purity of the alumina ceramic powder is greater than 99%, and the alumina ceramic powder is α-Al 2 O 3 , The particle size of alumina ceramics is: 0.1~0.5μm; the ...
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