Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of nanoscale tetragonal-phase barium titanate powder
The invention belongs to the technical field of nano material preparation, and particularly relates to a preparation process of nanoscale tetragonal-phase barium titanate powder. The preparation process comprises the following steps: mixing a barium salt solution with a certain concentration, a titanium salt solution and a supersaturated oxalic acid solution; then carrying out heat preservation treatment to generate barium titanyl oxalate slurry; centrifuging the barium titanyl oxalate slurry to obtain a barium titanyl oxalate solid; drying and grinding the barium titanyl oxalate solid; calcining after grinding; and after calcining, carrying out ball milling to obtain the nano-scale tetragonal-phase barium titanate powder. The preparation process is simple in preparation condition, easy to operate, low in cost and capable of realizing batch production; the barium titanate powder prepared through the method is high in tetragonal property (c/a is approximately equal to 1.01), good in crystallinity, spherical or approximately spherical in particle morphology, uniform in particle size (d is approximately equal to 100 nm), easy to remove intermediate products, narrow and uniform in particle size distribution and about 85-214 nm in average particle size.
本发明属于纳米材料制备技术领域，具体涉及一种纳米级四方相钛酸钡粉末的制备工艺。该制备工艺包括：将一定浓度钡盐溶液、钛盐溶液和过饱和草酸溶液混合；然后保温处理生成草酸氧钛钡浆料；将草酸氧钛钡浆料离心得草酸氧钛钡固体；将草酸氧钛钡固体干燥，研磨；研磨后煅烧；将煅烧后进行球磨得到纳米级四方相钛酸钡粉末。该制备工艺制备条件简单，易于操作，成本低廉，可批量生产；并且通过此方法制备的钛酸钡粉末四方性(c/a)高(c/a≈1.01)，结晶性好，颗粒形貌为球形或近似球形，粒度均匀(d≈100nm)，中间产物易于去除，粒径分布窄且均匀，平均粒径约为85nm‑214nm。
Preparation process of nanoscale tetragonal-phase barium titanate powder
The invention belongs to the technical field of nano material preparation, and particularly relates to a preparation process of nanoscale tetragonal-phase barium titanate powder. The preparation process comprises the following steps: mixing a barium salt solution with a certain concentration, a titanium salt solution and a supersaturated oxalic acid solution; then carrying out heat preservation treatment to generate barium titanyl oxalate slurry; centrifuging the barium titanyl oxalate slurry to obtain a barium titanyl oxalate solid; drying and grinding the barium titanyl oxalate solid; calcining after grinding; and after calcining, carrying out ball milling to obtain the nano-scale tetragonal-phase barium titanate powder. The preparation process is simple in preparation condition, easy to operate, low in cost and capable of realizing batch production; the barium titanate powder prepared through the method is high in tetragonal property (c/a is approximately equal to 1.01), good in crystallinity, spherical or approximately spherical in particle morphology, uniform in particle size (d is approximately equal to 100 nm), easy to remove intermediate products, narrow and uniform in particle size distribution and about 85-214 nm in average particle size.
本发明属于纳米材料制备技术领域，具体涉及一种纳米级四方相钛酸钡粉末的制备工艺。该制备工艺包括：将一定浓度钡盐溶液、钛盐溶液和过饱和草酸溶液混合；然后保温处理生成草酸氧钛钡浆料；将草酸氧钛钡浆料离心得草酸氧钛钡固体；将草酸氧钛钡固体干燥，研磨；研磨后煅烧；将煅烧后进行球磨得到纳米级四方相钛酸钡粉末。该制备工艺制备条件简单，易于操作，成本低廉，可批量生产；并且通过此方法制备的钛酸钡粉末四方性(c/a)高(c/a≈1.01)，结晶性好，颗粒形貌为球形或近似球形，粒度均匀(d≈100nm)，中间产物易于去除，粒径分布窄且均匀，平均粒径约为85nm‑214nm。
Preparation process of nanoscale tetragonal-phase barium titanate powder
一种纳米级四方相钛酸钡粉末的制备工艺
ZHONG CHENG (Autor:in) / SHEN JING (Autor:in) / HU WENBIN (Autor:in) / LIU JIE (Autor:in) / PENG QIAOCHU (Autor:in) / HAO TIANYU (Autor:in)
13.06.2023
Patent
Elektronische Ressource
Chinesisch
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