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Preparation method of BaTiO3 microcrystalline powder
The invention discloses a preparation method of BaTiO3 microcrystalline powder, and particularly relates to a preparation method of BaTiO3 microcrystalline powder with (111) orientation. According to the preparation method, pure high-crystallinity tetragonal BaTiO3 powder is synthesized by using a traditional solid phase method; the BaTiO3 powder synthesized by the solid phase method is used as raw powder for synthesizing flaky Ba6Ti17O40 powder via a molten salt method; the synthesized flaky Ba6Ti17O40 powder preferentially grows along the (001) direction; the Ba6Ti17O40 is used as a precursor, and prepared flaky BaTiO3 powder has the highest aspect ratio (wherein a diameter is in a range of 10-20 [mu]m, and thickness is less than 1.5 [mu]m); and in addition, OPL-XRD analysis shows that BaTiO3 preferentially grows along a (111) plane. The invention provides a new way for preparing the (111)-BaTiO3 microcrystalline powder on a large scale.
本发明公开了一种BaTiO3微晶粉体的制备方法，具体涉及一种具有(111)取向的BaTiO3微晶粉体的制备方法，首先通过传统固相法，合成了纯的高结晶度的四方BaTiO3粉体。这种固相法合成的BaTiO3粉体将作为熔盐法合成片状Ba6Ti17O40粉体的原料粉体。合成的片状Ba6Ti17O40粉体沿(001)方向择优生长。Ba6Ti17O40为前驱体，制备片状BaTiO3粉体具有最高的纵横比(直径10～20μm，厚度<1.5μm)。此外，OPL‑XRD分析显示，BaTiO3沿(111)面择优生长。本发明提供了一种可大量制备(111)‑BaTiO3微晶粉体的新途径。
Preparation method of BaTiO3 microcrystalline powder
The invention discloses a preparation method of BaTiO3 microcrystalline powder, and particularly relates to a preparation method of BaTiO3 microcrystalline powder with (111) orientation. According to the preparation method, pure high-crystallinity tetragonal BaTiO3 powder is synthesized by using a traditional solid phase method; the BaTiO3 powder synthesized by the solid phase method is used as raw powder for synthesizing flaky Ba6Ti17O40 powder via a molten salt method; the synthesized flaky Ba6Ti17O40 powder preferentially grows along the (001) direction; the Ba6Ti17O40 is used as a precursor, and prepared flaky BaTiO3 powder has the highest aspect ratio (wherein a diameter is in a range of 10-20 [mu]m, and thickness is less than 1.5 [mu]m); and in addition, OPL-XRD analysis shows that BaTiO3 preferentially grows along a (111) plane. The invention provides a new way for preparing the (111)-BaTiO3 microcrystalline powder on a large scale.
本发明公开了一种BaTiO3微晶粉体的制备方法，具体涉及一种具有(111)取向的BaTiO3微晶粉体的制备方法，首先通过传统固相法，合成了纯的高结晶度的四方BaTiO3粉体。这种固相法合成的BaTiO3粉体将作为熔盐法合成片状Ba6Ti17O40粉体的原料粉体。合成的片状Ba6Ti17O40粉体沿(001)方向择优生长。Ba6Ti17O40为前驱体，制备片状BaTiO3粉体具有最高的纵横比(直径10～20μm，厚度<1.5μm)。此外，OPL‑XRD分析显示，BaTiO3沿(111)面择优生长。本发明提供了一种可大量制备(111)‑BaTiO3微晶粉体的新途径。
Preparation method of BaTiO3 microcrystalline powder
一种BaTiO3微晶粉体的制备方法
LYU DANYA (author) / ZHANG ZHONGLIANG (author) / WU KANG (author) / YE ZHOU (author) / JIN WEIWEI (author) / YUE QIAOYU (author) / MA TONG (author)
2021-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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