Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano barium titanate material and preparation method thereof
The invention belongs to the technical field of electronic ceramic materials, and particularly relates to a nano barium titanate material and a preparation method thereof. The preparation method of the nano barium titanate material comprises the following steps: (1) mixing titanium dioxide and barium carbonate in proportion to obtain a mixed raw material; wherein the average particle size of the titanium dioxide is 0.04-0.22 mu m, and the specific surface area of the titanium dioxide is 7-20 m < 2 >/g; the specific surface area of the barium carbonate is 8-20m < 2 >/g, and the difference between the specific surface area of the barium carbonate and the specific surface area of the titanium dioxide is less than or equal to 2m < (2) adding a dispersing agent into the mixed raw material, and then putting the mixed raw material into a grinding machine for sanding; and (3) drying, calcining, sanding again, and spray-drying to obtain the nano barium titanate material. The nano barium titanate powder disclosed by the invention has the advantages of small particle size (100-300nm), high crystallinity and uniform crystal grain distribution.
本发明属于电子陶瓷材料技术领域，具体涉及一种纳米钛酸钡材料及其制备方法。本发明的纳米钛酸钡材料的制备方法，包括：(1)将二氧化钛与碳酸钡按比例进行混合，得到混合原材料；其中，所述二氧化钛的平均粒径为0.04～0.22μm，比表面积为7～20m2/g；所述碳酸钡的比表面积为8～20m2/g，且与所述二氧化钛的比表面积之差≤2m2/g；(2)在所述混合原材料中加入分散剂后放入磨砂机中砂磨；(3)经烘干、煅烧、再次砂磨、喷雾干燥得到纳米钛酸钡材料。本发明的纳米钛酸钡粉体，具有粒径小(100～300nm)、结晶度高、晶粒分布均匀的优点。
Nano barium titanate material and preparation method thereof
The invention belongs to the technical field of electronic ceramic materials, and particularly relates to a nano barium titanate material and a preparation method thereof. The preparation method of the nano barium titanate material comprises the following steps: (1) mixing titanium dioxide and barium carbonate in proportion to obtain a mixed raw material; wherein the average particle size of the titanium dioxide is 0.04-0.22 mu m, and the specific surface area of the titanium dioxide is 7-20 m < 2 >/g; the specific surface area of the barium carbonate is 8-20m < 2 >/g, and the difference between the specific surface area of the barium carbonate and the specific surface area of the titanium dioxide is less than or equal to 2m < (2) adding a dispersing agent into the mixed raw material, and then putting the mixed raw material into a grinding machine for sanding; and (3) drying, calcining, sanding again, and spray-drying to obtain the nano barium titanate material. The nano barium titanate powder disclosed by the invention has the advantages of small particle size (100-300nm), high crystallinity and uniform crystal grain distribution.
本发明属于电子陶瓷材料技术领域，具体涉及一种纳米钛酸钡材料及其制备方法。本发明的纳米钛酸钡材料的制备方法，包括：(1)将二氧化钛与碳酸钡按比例进行混合，得到混合原材料；其中，所述二氧化钛的平均粒径为0.04～0.22μm，比表面积为7～20m2/g；所述碳酸钡的比表面积为8～20m2/g，且与所述二氧化钛的比表面积之差≤2m2/g；(2)在所述混合原材料中加入分散剂后放入磨砂机中砂磨；(3)经烘干、煅烧、再次砂磨、喷雾干燥得到纳米钛酸钡材料。本发明的纳米钛酸钡粉体，具有粒径小(100～300nm)、结晶度高、晶粒分布均匀的优点。
Nano barium titanate material and preparation method thereof
一种纳米钛酸钡材料及其制备方法
LIU DAKANG (Autor:in) / GAO YUEFEI (Autor:in) / YAN JIADUO (Autor:in) / NING RULIANG (Autor:in) / GAO NING (Autor:in) / YANG WENMING (Autor:in) / ZHANG XIU (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2020