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Method for preparing Bi2Ti2O7 ceramic with pyrochlore structure by deep super-cooling rapid solidification method
The invention discloses a method for preparing Bi2Ti2O7 ceramic with a pyrochlore structure by a deep super-cooling rapid solidification method. The method comprises the following steps: mixing a bismuth source and a titanium source, grinding the mixture into a powdery ingredient, pressing the powdery ingredient into a green body, carrying out heat treatment on the green body to obtain a sample, putting the sample into a suspension container, continuously introducing Ar gas into the bottom of the suspension container, enabling the sample to suspend in Ar gas, heating the sample until the sample is molten by using a CO2 laser, stopping heating after the molten sample suspends stably in the Ar gas, and cooling to obtain the Bi2Ti2O7 ceramic with a pyrochlore structure. The method is simple in process, free of any by-product and good in repeatability, the prepared Bi2Ti2O7 block material with a pyrochlore structure is high in purity, and the proportion range of the preparation raw materials is wide and is not limited to single proportion.
本发明公开了一种深过冷快速凝固法制备焦绿石结构Bi2Ti2O7陶瓷的方法，包括以下步骤：将铋源和钛源混合后，研磨成粉末状配料，再将其压制成生坯，进行热处理后，得到样品，将样品置于悬浮容器中，并在悬浮容器底部持续通入Ar气，使样品悬浮于Ar气中，然后用CO2激光器将样品加热至熔化，待熔化的样品在Ar气中悬浮稳定后，停止加热，冷却后，即制得焦绿石结构Bi2Ti2O7陶瓷，本发明方法过程简单，无任何副产物，重复性好，制备的焦绿石结构Bi2Ti2O7块体材料纯度高，且制备原料配比的比例范围宽，不限于单一的配比。
Method for preparing Bi2Ti2O7 ceramic with pyrochlore structure by deep super-cooling rapid solidification method
The invention discloses a method for preparing Bi2Ti2O7 ceramic with a pyrochlore structure by a deep super-cooling rapid solidification method. The method comprises the following steps: mixing a bismuth source and a titanium source, grinding the mixture into a powdery ingredient, pressing the powdery ingredient into a green body, carrying out heat treatment on the green body to obtain a sample, putting the sample into a suspension container, continuously introducing Ar gas into the bottom of the suspension container, enabling the sample to suspend in Ar gas, heating the sample until the sample is molten by using a CO2 laser, stopping heating after the molten sample suspends stably in the Ar gas, and cooling to obtain the Bi2Ti2O7 ceramic with a pyrochlore structure. The method is simple in process, free of any by-product and good in repeatability, the prepared Bi2Ti2O7 block material with a pyrochlore structure is high in purity, and the proportion range of the preparation raw materials is wide and is not limited to single proportion.
本发明公开了一种深过冷快速凝固法制备焦绿石结构Bi2Ti2O7陶瓷的方法，包括以下步骤：将铋源和钛源混合后，研磨成粉末状配料，再将其压制成生坯，进行热处理后，得到样品，将样品置于悬浮容器中，并在悬浮容器底部持续通入Ar气，使样品悬浮于Ar气中，然后用CO2激光器将样品加热至熔化，待熔化的样品在Ar气中悬浮稳定后，停止加热，冷却后，即制得焦绿石结构Bi2Ti2O7陶瓷，本发明方法过程简单，无任何副产物，重复性好，制备的焦绿石结构Bi2Ti2O7块体材料纯度高，且制备原料配比的比例范围宽，不限于单一的配比。
Method for preparing Bi2Ti2O7 ceramic with pyrochlore structure by deep super-cooling rapid solidification method
一种深过冷快速凝固法制备焦绿石结构Bi2Ti2O7陶瓷的方法
HU QIAODAN (author) / HU YIDONG (author) / YANG FAN (author) / GE XUAN (author) / LU WENQUAN (author) / LI JIANGUO (author)
2021-11-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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