A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-toughness silicon carbide ceramic material and preparation method thereof
The invention discloses a high-toughness silicon carbide ceramic material and a preparation method thereof, and belongs to the technical field of ceramic materials, the preparation method comprises the following steps: (1) carrying out ball milling on mixed powder of silicon carbide powder and a sintering aid to obtain silicon carbide slurry; (2) drying, mechanically grinding and sieving the silicon carbide slurry, and performing compression molding to obtain a silicon carbide biscuit; (3) transferring the silicon carbide biscuit into a vacuum sintering furnace, and sintering for 1-2 hours at the temperature of 1650-1750 DEG C under a vacuumizing condition to obtain a silicon carbide ceramic body; and (4) introducing nitrogen into the vacuum sintering furnace, cooling to 1300-1400 DEG C, preserving heat for 1-2 hours, and cooling to room temperature to obtain the high-toughness silicon carbide ceramic material. The aluminum powder and the aluminum fluoride powder are compounded into the sintering aid, and the compactness and the fracture toughness of the silicon carbide ceramic material are improved by combining a simple and feasible sintering process and heat preservation treatment.
本发明公开了一种高韧性碳化硅陶瓷材料及其制备方法，属于陶瓷材料技术领域，该制备方法包括以下步骤：(1)将碳化硅粉末和烧结助剂的混合粉末进行球磨，得到碳化硅浆料；(2)将碳化硅浆料烘干、机械研磨并过筛后，压制成型，得到碳化硅素坯；(3)将碳化硅素坯转入真空烧结炉中，在温度为1650‑1750℃、抽真空条件下烧结1‑2h，得到碳化硅陶瓷体；(4)向真空烧结炉中通入氮气，并降温至1300‑1400℃保温1‑2h，冷却至室温后，得到高韧性碳化硅陶瓷材料；本发明将铝粉和氟化铝粉复配为烧结助剂，并结合简单易行的烧结工艺和保温处理，提高了碳化硅陶瓷材料的致密性和断裂韧性。
High-toughness silicon carbide ceramic material and preparation method thereof
The invention discloses a high-toughness silicon carbide ceramic material and a preparation method thereof, and belongs to the technical field of ceramic materials, the preparation method comprises the following steps: (1) carrying out ball milling on mixed powder of silicon carbide powder and a sintering aid to obtain silicon carbide slurry; (2) drying, mechanically grinding and sieving the silicon carbide slurry, and performing compression molding to obtain a silicon carbide biscuit; (3) transferring the silicon carbide biscuit into a vacuum sintering furnace, and sintering for 1-2 hours at the temperature of 1650-1750 DEG C under a vacuumizing condition to obtain a silicon carbide ceramic body; and (4) introducing nitrogen into the vacuum sintering furnace, cooling to 1300-1400 DEG C, preserving heat for 1-2 hours, and cooling to room temperature to obtain the high-toughness silicon carbide ceramic material. The aluminum powder and the aluminum fluoride powder are compounded into the sintering aid, and the compactness and the fracture toughness of the silicon carbide ceramic material are improved by combining a simple and feasible sintering process and heat preservation treatment.
本发明公开了一种高韧性碳化硅陶瓷材料及其制备方法，属于陶瓷材料技术领域，该制备方法包括以下步骤：(1)将碳化硅粉末和烧结助剂的混合粉末进行球磨，得到碳化硅浆料；(2)将碳化硅浆料烘干、机械研磨并过筛后，压制成型，得到碳化硅素坯；(3)将碳化硅素坯转入真空烧结炉中，在温度为1650‑1750℃、抽真空条件下烧结1‑2h，得到碳化硅陶瓷体；(4)向真空烧结炉中通入氮气，并降温至1300‑1400℃保温1‑2h，冷却至室温后，得到高韧性碳化硅陶瓷材料；本发明将铝粉和氟化铝粉复配为烧结助剂，并结合简单易行的烧结工艺和保温处理，提高了碳化硅陶瓷材料的致密性和断裂韧性。
High-toughness silicon carbide ceramic material and preparation method thereof
一种高韧性碳化硅陶瓷材料及其制备方法
CAO SHULONG (author) / HUANG BINGFENG (author) / ZHANG XIA (author)
2023-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-strength and high-toughness silicon carbide ceramic material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2020
High-toughness boron carbide ceramic and preparation method thereof
| European Patent Office | 2015
High-toughness silicon nitride ceramic material and preparation method thereof
| European Patent Office | 2022
Method for preparing high-toughness silicon carbide ceramic material and application
| European Patent Office | 2024