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Preparation method of high-performance nano rare earth doped barium ferrite permanent magnet material
The invention discloses a preparation method of a high-performance nano rare earth doped barium ferrite permanent magnet material, wherein the chemical composition formula of the rare earth doped barium ferrite is Ba1-xLnxFe12-xAxO19, the element Ln in the compound is rare earth elements such as La, Yb and the like, the element A is a divalent transition group metal element such as Co and the like, and x is greater than or equal to 0 and less than or equal to 0.5. According to the invention, a Ba1-xLnxFe12-xAxO19 precursor is prepared through a coprecipitation method of a Taylor reactor, thenmagnetic field orientation and sintering are carried out to obtain the rare earth doped barium ferrite, the preparation method can obtain the precursor with good crystallinity and the size of 100-200nm, and the barium ferrite obtained after co-doping and sintering of rare earth elements and metal elements is higher in magnetic performance; and the preparation method can effectively reduce high-temperature sintering temperature and time and save energy consumption.
本发明公开了一种高性能纳米稀土掺杂钡铁氧体永磁材料的制备方法。本发明的稀土掺杂钡铁氧体的化学组成式为Ba1‑xLnxFe12‑xAxO19,所述化合物中元素Ln为La、Yb等稀土元素，元素A为Co等二价过渡族金属元素，0≤x≤0.5。本发明通过泰勒反应器的共沉淀法制备Ba1‑xLnxFe12‑xAxO19前驱体，之后进行磁场取向，烧结得到稀土掺杂钡铁氧体，该制备方法能够得到结晶度好，大小为100‑200nm的前驱体,通过稀土元素和金属元素共掺杂，烧结后得到的钡铁氧体磁性能更高，该制备方法能够有效降低高温烧结温度与时间，节约能耗。
Preparation method of high-performance nano rare earth doped barium ferrite permanent magnet material
The invention discloses a preparation method of a high-performance nano rare earth doped barium ferrite permanent magnet material, wherein the chemical composition formula of the rare earth doped barium ferrite is Ba1-xLnxFe12-xAxO19, the element Ln in the compound is rare earth elements such as La, Yb and the like, the element A is a divalent transition group metal element such as Co and the like, and x is greater than or equal to 0 and less than or equal to 0.5. According to the invention, a Ba1-xLnxFe12-xAxO19 precursor is prepared through a coprecipitation method of a Taylor reactor, thenmagnetic field orientation and sintering are carried out to obtain the rare earth doped barium ferrite, the preparation method can obtain the precursor with good crystallinity and the size of 100-200nm, and the barium ferrite obtained after co-doping and sintering of rare earth elements and metal elements is higher in magnetic performance; and the preparation method can effectively reduce high-temperature sintering temperature and time and save energy consumption.
本发明公开了一种高性能纳米稀土掺杂钡铁氧体永磁材料的制备方法。本发明的稀土掺杂钡铁氧体的化学组成式为Ba1‑xLnxFe12‑xAxO19,所述化合物中元素Ln为La、Yb等稀土元素，元素A为Co等二价过渡族金属元素，0≤x≤0.5。本发明通过泰勒反应器的共沉淀法制备Ba1‑xLnxFe12‑xAxO19前驱体，之后进行磁场取向，烧结得到稀土掺杂钡铁氧体，该制备方法能够得到结晶度好，大小为100‑200nm的前驱体,通过稀土元素和金属元素共掺杂，烧结后得到的钡铁氧体磁性能更高，该制备方法能够有效降低高温烧结温度与时间，节约能耗。
Preparation method of high-performance nano rare earth doped barium ferrite permanent magnet material
一种高性能纳米稀土掺杂钡铁氧体永磁材料的制备方法
YANG HANGFU (author) / FANG QINGWEI (author) / HUANG XIANI (author) / WU QIONG (author) / GE HONGLIANG (author)
2021-03-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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