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Method for preparing hafnium lead titanate-based ceramic material based on hot isostatic pressing method
A method for preparing a hafnium lead titanate-based ceramic material based on a hot isostatic pressing method comprises the steps that raw materials are weighed according to the composition of the materials and sequentially subjected to primary ball milling, pre-sintering treatment, secondary ball milling, viscosity removal and hot isostatic pressing treatment; the hot isostatic pressing treatment comprises the steps that a green body obtained after viscosity removal is packaged with a plastic sleeve, the temperature is increased to 1120-1180 DEG C under the pressure of 100 MPa, heat preservation is conducted for 2-2.5 h, and then natural cooling is conducted; the hafnium lead titanate-based ceramic material is Pb[1-3z/2]La[z][(Hf[1-y]Sn[y])[1-x]Ti[x]]O[3], x is larger than or equal to 0.02 and smaller than or equal to 0.04, y is larger than or equal to 0.05 and smaller than or equal to 0.2, and z is larger than or equal to 0.02 and smaller than or equal to 0.1; and the raw materials are Pb3O4, HfO2, TiO2, La2O3 and SnO2. The La and Sn co-doped hafnium lead titanate ceramic block material prepared by the method is high in density, excellent in compactness, uniform in component distribution, free of component segregation and excellent in energy storage density, the energy storage density reaches 5.09 J*cm<-1>, and the breakdown electric field intensity is also remarkably improved and can reach about 350 kV*cm<-1>.
一种基于热等静压法制备铪钛酸铅基陶瓷材料的方法，根据材料的组成，称取原料依次进行一次球磨、预烧处理、二次球磨、排粘、热等静压处理，所述热等静压处理是将排粘后的坯体用塑胶套包装，在100MPa下升温至1120~1180℃，保温2~2.5h，然后自然降温，所述铪钛酸铅基陶瓷材料为Pb1‑3z/2Laz[(Hf1‑ySny)1‑xTix]O3，其中0.02≤x≤0.04，0.05≤y≤0.2，0.02≤z≤0.1；所述原料为Pb3O4、HfO2、TiO2、La2O3和SnO2。本发明制备的La、Sn共掺杂的铪钛酸铅陶瓷块体材料密度大，致密性优异，成分分布均匀、不发生成分偏聚，具有优异的储能密度，储能密度达到5.09J·cm‑1，击穿电场强度也得到显著的提高，可达到350kV·cm‑1左右。
Method for preparing hafnium lead titanate-based ceramic material based on hot isostatic pressing method
A method for preparing a hafnium lead titanate-based ceramic material based on a hot isostatic pressing method comprises the steps that raw materials are weighed according to the composition of the materials and sequentially subjected to primary ball milling, pre-sintering treatment, secondary ball milling, viscosity removal and hot isostatic pressing treatment; the hot isostatic pressing treatment comprises the steps that a green body obtained after viscosity removal is packaged with a plastic sleeve, the temperature is increased to 1120-1180 DEG C under the pressure of 100 MPa, heat preservation is conducted for 2-2.5 h, and then natural cooling is conducted; the hafnium lead titanate-based ceramic material is Pb[1-3z/2]La[z][(Hf[1-y]Sn[y])[1-x]Ti[x]]O[3], x is larger than or equal to 0.02 and smaller than or equal to 0.04, y is larger than or equal to 0.05 and smaller than or equal to 0.2, and z is larger than or equal to 0.02 and smaller than or equal to 0.1; and the raw materials are Pb3O4, HfO2, TiO2, La2O3 and SnO2. The La and Sn co-doped hafnium lead titanate ceramic block material prepared by the method is high in density, excellent in compactness, uniform in component distribution, free of component segregation and excellent in energy storage density, the energy storage density reaches 5.09 J*cm<-1>, and the breakdown electric field intensity is also remarkably improved and can reach about 350 kV*cm<-1>.
一种基于热等静压法制备铪钛酸铅基陶瓷材料的方法，根据材料的组成，称取原料依次进行一次球磨、预烧处理、二次球磨、排粘、热等静压处理，所述热等静压处理是将排粘后的坯体用塑胶套包装，在100MPa下升温至1120~1180℃，保温2~2.5h，然后自然降温，所述铪钛酸铅基陶瓷材料为Pb1‑3z/2Laz[(Hf1‑ySny)1‑xTix]O3，其中0.02≤x≤0.04，0.05≤y≤0.2，0.02≤z≤0.1；所述原料为Pb3O4、HfO2、TiO2、La2O3和SnO2。本发明制备的La、Sn共掺杂的铪钛酸铅陶瓷块体材料密度大，致密性优异，成分分布均匀、不发生成分偏聚，具有优异的储能密度，储能密度达到5.09J·cm‑1，击穿电场强度也得到显著的提高，可达到350kV·cm‑1左右。
Method for preparing hafnium lead titanate-based ceramic material based on hot isostatic pressing method
一种基于热等静压法制备铪钛酸铅基陶瓷材料的方法
TANG HUA (author) / LI LU (author) / CHENG JIANG (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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