Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Preparation method of neodymium doped barium titanate ceramic nano-powder
The invention discloses a preparation method of neodymium doped barium titanate ceramic nano-powder. The preparation method comprises the step of preparation of a dripping solution containing Ti(C4H9O)4, the step of preparation of TiO2 sol, the step of mixing of the TiO2 sol and barium acetate, the step of adjustment of alkalinity, the step of preparation of a mixed precursor, the step of a hydrothermal reaction and the step of washing and freeze drying. The preparation method is simple and convenient; firstly, Nd2O3 is prepared to form a Nd(NO3)3 solution, the Nd(NO3)3 solution is added to a reactant precursor solution, the mixture is stirred uniformly, and accordingly, nonuniform doping caused by direct adding of Nd2O3 solid powder is avoided; besides, ingredients of a product can be controlled due to the fact that the barium-titanium ratio and the alkalinity are adjustable under the hydrothermal condition; with the adoption of freeze drying, agglomeration of the powder during high-temperature drying is avoided, and the well dispersed nano-powder can be obtained.
Preparation method of neodymium doped barium titanate ceramic nano-powder
The invention discloses a preparation method of neodymium doped barium titanate ceramic nano-powder. The preparation method comprises the step of preparation of a dripping solution containing Ti(C4H9O)4, the step of preparation of TiO2 sol, the step of mixing of the TiO2 sol and barium acetate, the step of adjustment of alkalinity, the step of preparation of a mixed precursor, the step of a hydrothermal reaction and the step of washing and freeze drying. The preparation method is simple and convenient; firstly, Nd2O3 is prepared to form a Nd(NO3)3 solution, the Nd(NO3)3 solution is added to a reactant precursor solution, the mixture is stirred uniformly, and accordingly, nonuniform doping caused by direct adding of Nd2O3 solid powder is avoided; besides, ingredients of a product can be controlled due to the fact that the barium-titanium ratio and the alkalinity are adjustable under the hydrothermal condition; with the adoption of freeze drying, agglomeration of the powder during high-temperature drying is avoided, and the well dispersed nano-powder can be obtained.
Preparation method of neodymium doped barium titanate ceramic nano-powder
ZHU KONGJUN (Autor:in) / SUN QIAOMEI (Autor:in) / GU QILIN (Autor:in) / WANG JING (Autor:in) / LIU JINSONG (Autor:in) / QIU JINHAO (Autor:in)
20.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2020