Lead lanthanum zirconate titanate ceramic powder as well as preparation method and application thereof
A technology of lead lanthanum zirconate titanate and ceramic powder, which is applied in the field of lead lanthanum zirconate titanate ceramic powder and its preparation, can solve the problems of low precursor concentration, long reaction time, and easy agglomeration of powder, and achieve powder High purity, uniform crystal grains, and high sintering activity
Pending Publication Date: 2020-02-28
GUANGDONG UNIV OF TECH
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Abstract
The invention belongs to the technical field of inorganic non-metallic materials, and discloses lead lanthanum zirconate titanate ceramic powder as well as a preparation method and application thereof. The molecular formula of the lead lanthanum zirconate titanate ceramic is Pb<x>La<1-x>Zr<y>Ti <1-y>, x is equal to 0.94, and y is equal to 0.52-0.95; the preparation method comprises the following steps: dissolving lead acetate and lanthanum acetate in deionized water to obtain a lead-lanthanum aqueous solution, and dissolving zirconium n-propoxide and tetrabutyl titanate in absolute ethyl alcohol to obtain a zirconium-titanium alcohol solution; adding the zirconium-titanium alcohol solution into the lead-lanthanum aqueous solution, and stirring to obtain a lead lanthanum zirconate titanatemixed solution; under magnetic stirring, adding potassium hydroxide into the lead lanthanum zirconate titanate mixed solution to obtain a lead lanthanum zirconate titanate turbid liquid precursor; andcarrying out hydrothermal reaction on the precursor at 160-180 DEG C to obtain a lead lanthanum zirconate titanate slurry, centrifuging, washing and drying to obtain the lead lanthanum zirconate titanate ceramic powder. The ceramic powder is high in purity, good in dispersity, small and controllable in particle size and high in precursor solution concentration, and can be applied to the fields ofrefrigeration and energy storage.
Technology Topic
Lead acetateLanthanum +12
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PUM
Property | Measurement | Unit |
Average particle size | 200.0 | nm |
Average particle size | 500.0 | nm |
Average particle size | 800.0 | nm |
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