Preparation method of low-temperature co-fired ceramic material for 3D printing molding

Abstract

The invention discloses a preparation method of a low-temperature co-fired ceramic for 3D printing forming, and relates to the field of additive manufacturing, wherein the low-temperature co-fired ceramic material is composed of microcrystalline glass and a ceramic. The preparation method specifically comprises the following steps: smelting and crushing SiO2, Al2O3, B2O3, Na2O, CaO and the like toobtain a microcrystalline glass material; and carrying out ball milling on ceramic materials such as Al2O3, ZrO2 and the like and the microcrystalline glass material to obtain the low-temperature co-fired ceramic material. According to the invention, in a 3D printing process of microcrystalline glass and a ceramic, the microcrystalline glass and the ceramic can be reliably connected while the microcrystalline ceramic can permeate into ceramic particle gaps, so that the compactness of the material is effectively improved.

Description

technical field

[0001] The invention relates to a preparation method of a low-temperature co-fired ceramic material formed by 3D printing, and belongs to the fields of additive manufacturing and rapid prototype manufacturing. Background technique

[0002] 3D printing technology, also known as additive manufacturing technology, is a kind of high-energy beam such as laser, electron beam or electric arc as heat source, based on digital model, using powdery and filamentary materials to construct entities by layer-by-layer stacking Technology. As a representative of advanced manufacturing technology, 3D printing has undergone fundamental changes in forming principles, raw material forms, and product performance compared with traditional manufacturing processes, and is considered to be a revolutionary breakthrough in manufacturing technology. 3D printing technology covers a number of high-tech advantages such as computer graphics processing, digital information and control, laser...

Examples

Embodiment 1

[0021] Weigh glass-ceramic raw materials according to the following ratio: 50% SiO 2 , 5%Al 2 o 3 , 10%B 2 o 3 , 5%Na 2 O, 10% Li 2 O, 10% MgO, 10% ZnO, mixed evenly, smelting temperature 1400°C, smelting for 1h, water quenching, drying, crushing, and ball milling for 6h to obtain glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 90%Al 2 o 3 and 10%ZrO 2 , mixed evenly, the ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 1:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0022] Test results: bending strength: 106.7MPa; Vickers hardness: 5.2GPa; density: 3.5g / mm 3 .

Embodiment 2

[0024] Weigh glass-ceramic raw materials according to the following ratio: 50% SiO 2 , 10%Al 2 o 3 , 20%B 2 o 3 , 5%Na 2 O, 5% Li 2 O, 5% MgO, 5% ZnO, mixed evenly, smelting temperature 1300°C, smelting for 1.5h, water quenching, drying, crushing, and ball milling for 5h to obtain glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 50%Al 2 o 3 and 50%ZrO 2 , mixed evenly, the ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 2:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0025] Test results: Bending strength: 119.1MPa; Vickers hardness: 4.3GPa; Density: 3.9g / mm 3 .

Embodiment 3

[0027] Weigh glass-ceramic raw materials according to the following ratio: 60% SiO 2 , 5%Al 2 o 3 , 10%B 2 o 3 , 10%Na 2 O, 5% Li 2 O, 5% MgO, 5% ZnO, mixed evenly, smelting temperature 1500 ℃, smelting 1.5h, water quenching, drying, crushing, and ball milling for 5h to get glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 100%Al 2 o 3 , The ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 1:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0028] Test results: bending strength: 126.7MPa; Vickers hardness: 5.5GPa; density: 3.3g / mm3 .

technical field

[0001] The invention relates to a preparation method of a low-temperature co-fired ceramic material formed by 3D printing, and belongs to the fields of additive manufacturing and rapid prototype manufacturing. Background technique

[0002] 3D printing technology, also known as additive manufacturing technology, is a kind of high-energy beam such as laser, electron beam or electric arc as heat source, based on digital model, using powdery and filamentary materials to construct entities by layer-by-layer stacking Technology. As a representative of advanced manufacturing technology, 3D printing has undergone fundamental changes in forming principles, raw material forms, and product performance compared with traditional manufacturing processes, and is considered to be a revolutionary breakthrough in manufacturing technology. 3D printing technology covers a number of high-tech advantages such as computer graphics processing, digital information and control, laser...

Examples

Embodiment 1

[0021] Weigh glass-ceramic raw materials according to the following ratio: 50% SiO 2 , 5%Al 2 o 3 , 10%B 2 o 3 , 5%Na 2 O, 10% Li 2 O, 10% MgO, 10% ZnO, mixed evenly, smelting temperature 1400°C, smelting for 1h, water quenching, drying, crushing, and ball milling for 6h to obtain glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 90%Al 2 o 3 and 10%ZrO 2 , mixed evenly, the ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 1:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0022] Test results: bending strength: 106.7MPa; Vickers hardness: 5.2GPa; density: 3.5g / mm 3 .

Embodiment 2

[0024] Weigh glass-ceramic raw materials according to the following ratio: 50% SiO 2 , 10%Al 2 o 3 , 20%B 2 o 3 , 5%Na 2 O, 5% Li 2 O, 5% MgO, 5% ZnO, mixed evenly, smelting temperature 1300°C, smelting for 1.5h, water quenching, drying, crushing, and ball milling for 5h to obtain glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 50%Al 2 o 3 and 50%ZrO 2 , mixed evenly, the ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 2:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0025] Test results: Bending strength: 119.1MPa; Vickers hardness: 4.3GPa; Density: 3.9g / mm 3 .

Embodiment 3

[0027] Weigh glass-ceramic raw materials according to the following ratio: 60% SiO 2 , 5%Al 2 o 3 , 10%B 2 o 3 , 10%Na 2 O, 5% Li 2 O, 5% MgO, 5% ZnO, mixed evenly, smelting temperature 1500 ℃, smelting 1.5h, water quenching, drying, crushing, and ball milling for 5h to get glass-ceramic frit. Ceramic raw materials weighed in the following proportion: 100%Al 2 o 3 , The ceramic material after ball milling for 6h. Mix the glass-ceramic material and the ceramic material at a ratio of 1:1, ball mill for 6 hours in an anhydrous ethanol medium, and dry and sieve to obtain a low-temperature co-fired ceramic material.

[0028] Test results: bending strength: 126.7MPa; Vickers hardness: 5.5GPa; density: 3.3g / mm3 .