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MnO2-modified NBT-based ternary lead-free relaxor ferroelectric ceramic material and preparation method thereof
The invention discloses a MnO2 modified NBT-based ternary lead-free relaxor ferroelectric ceramic material and a preparation method thereof, and belongs to the field of dielectric energy storage ceramic materials. The chemical formula of the material is (0.80-x) Na < 0.5 > Bi < 0.5 > TiO < 3-0.20 > NaNbO < 3-x > SrTiO < 3 > and 0.99 (0.55 > Na < 0.5 > Bi < 0.5 > TiO < 3-0.20 > NaNbO < 3-0.25 > SrTiO < 3 >)-0.01 MnO < 2 >, and x is larger than or equal to 0.05 and smaller than or equal to 0.30. The NBT-based ternary lead-free relaxor ferroelectric ceramic provided by the invention has excellent energy storage performance, the energy storage density of the ceramic can reach 6.53 J/cm < 3 > and the energy storage efficiency can reach 96.60% by regulating and controlling the doping proportion and the sintering aid, and the NBT-based ternary lead-free relaxor ferroelectric ceramic is a potential dielectric capacitor candidate material and has the characteristics of environmental friendliness, easiness in preparation and the like.
本发明公开了一种MnO2改性的NBT基三元无铅弛豫铁电陶瓷材料及其制备方法，属于电介质储能陶瓷材料领域；其化学式为(0.80‑x)Na0.5Bi0.5TiO3‑0.20NaNbO3‑xSrTiO3和0.99(0.55Na0.5Bi0.5TiO3‑0.20NaNbO3‑0.25SrTiO3)‑0.01MnO2，其中，0.05≤x≤0.30。本发明提供的NBT基三元无铅弛豫铁电陶瓷具有优异的储能性能，通过对掺杂比例和助烧剂进行调控，可以使该陶瓷的储能密度达到6.53J/cm3，储能效率达到96.60％，是一种很有潜力的介质电容器候选材料，并且具有环境友好、易制备等特性。
MnO2-modified NBT-based ternary lead-free relaxor ferroelectric ceramic material and preparation method thereof
The invention discloses a MnO2 modified NBT-based ternary lead-free relaxor ferroelectric ceramic material and a preparation method thereof, and belongs to the field of dielectric energy storage ceramic materials. The chemical formula of the material is (0.80-x) Na < 0.5 > Bi < 0.5 > TiO < 3-0.20 > NaNbO < 3-x > SrTiO < 3 > and 0.99 (0.55 > Na < 0.5 > Bi < 0.5 > TiO < 3-0.20 > NaNbO < 3-0.25 > SrTiO < 3 >)-0.01 MnO < 2 >, and x is larger than or equal to 0.05 and smaller than or equal to 0.30. The NBT-based ternary lead-free relaxor ferroelectric ceramic provided by the invention has excellent energy storage performance, the energy storage density of the ceramic can reach 6.53 J/cm < 3 > and the energy storage efficiency can reach 96.60% by regulating and controlling the doping proportion and the sintering aid, and the NBT-based ternary lead-free relaxor ferroelectric ceramic is a potential dielectric capacitor candidate material and has the characteristics of environmental friendliness, easiness in preparation and the like.
本发明公开了一种MnO2改性的NBT基三元无铅弛豫铁电陶瓷材料及其制备方法，属于电介质储能陶瓷材料领域；其化学式为(0.80‑x)Na0.5Bi0.5TiO3‑0.20NaNbO3‑xSrTiO3和0.99(0.55Na0.5Bi0.5TiO3‑0.20NaNbO3‑0.25SrTiO3)‑0.01MnO2，其中，0.05≤x≤0.30。本发明提供的NBT基三元无铅弛豫铁电陶瓷具有优异的储能性能，通过对掺杂比例和助烧剂进行调控，可以使该陶瓷的储能密度达到6.53J/cm3，储能效率达到96.60％，是一种很有潜力的介质电容器候选材料，并且具有环境友好、易制备等特性。
MnO2-modified NBT-based ternary lead-free relaxor ferroelectric ceramic material and preparation method thereof
MnO2改性的NBT基三元无铅弛豫铁电陶瓷材料及其制备方法
ZHOU DI (author) / LI DA (author) / ZHAO WEICHEN (author) / GUO YAN (author) / REN JIAJIA (author) / WANG ZHENTAO (author) / LIU JINNAN (author)
2024-08-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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