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Sodium bismuth titanate-based relaxor ferroelectric ceramic material with component gradient structure and preparation method of sodium bismuth titanate-based relaxor ferroelectric ceramic material
The invention relates to the technical field of electronic functional materials and devices, in particular to a sodium bismuth titanate-based relaxor ferroelectric ceramic material with a component gradient structure and a preparation method thereof.The ceramic material meets the chemical general formula of Bi < 0.47 > Na < 0.47 > Ba < 0.06 > Ti < 1-x > (Li < 1/4 > Nb < 3/4 >) < x > O < 3 >. The ceramic material is obtained through the processes of primary ball milling, discharging, drying, pre-sintering, secondary ball milling, discharging, drying, roller milling, tape casting, lamination and tabletting, glue discharging and sintering in sequence. Compared with the prior art, the material provided by the invention is used as a multilayer composite lead-free material, the ceramic has a novel design structure, the shown high electrocaloric effect in a wide temperature interval has a huge application prospect in the technical field of novel solid-state refrigeration, the performance is excellent, and meanwhile, the environmental pollution and damage are not easily caused; the method has the advantages of low preparation cost and good stability.
本发明涉及电子功能材料与器件技术领域，涉及一种具有成分梯度结构钛酸铋钠基弛豫铁电陶瓷材料以及制备方法，其中陶瓷材料符合化学通式为：Bi0.47Na0.47Ba0.06Ti1‑x(Li1/4Nb3/4)xO3，制备方法包括：依照该化学通式，将原料混合，并依次经过一次球磨、出料、烘干、预烧、二次球磨、出料、烘干、辊磨、流延、叠片压片、排胶、烧结过程后，即得到上述陶瓷材料。与现有技术相比，本发明提供的材料，作为一种多层复合无铅材料，该陶瓷具有新型的设计结构，所表现出的宽温度区间内的高电卡效应在新型固态制冷技术领域有巨大应用前景，其性能优异的同时不易对环境造成污染和破坏，具有制备成本低、稳定性好等优点。
Sodium bismuth titanate-based relaxor ferroelectric ceramic material with component gradient structure and preparation method of sodium bismuth titanate-based relaxor ferroelectric ceramic material
The invention relates to the technical field of electronic functional materials and devices, in particular to a sodium bismuth titanate-based relaxor ferroelectric ceramic material with a component gradient structure and a preparation method thereof.The ceramic material meets the chemical general formula of Bi < 0.47 > Na < 0.47 > Ba < 0.06 > Ti < 1-x > (Li < 1/4 > Nb < 3/4 >) < x > O < 3 >. The ceramic material is obtained through the processes of primary ball milling, discharging, drying, pre-sintering, secondary ball milling, discharging, drying, roller milling, tape casting, lamination and tabletting, glue discharging and sintering in sequence. Compared with the prior art, the material provided by the invention is used as a multilayer composite lead-free material, the ceramic has a novel design structure, the shown high electrocaloric effect in a wide temperature interval has a huge application prospect in the technical field of novel solid-state refrigeration, the performance is excellent, and meanwhile, the environmental pollution and damage are not easily caused; the method has the advantages of low preparation cost and good stability.
本发明涉及电子功能材料与器件技术领域，涉及一种具有成分梯度结构钛酸铋钠基弛豫铁电陶瓷材料以及制备方法，其中陶瓷材料符合化学通式为：Bi0.47Na0.47Ba0.06Ti1‑x(Li1/4Nb3/4)xO3，制备方法包括：依照该化学通式，将原料混合，并依次经过一次球磨、出料、烘干、预烧、二次球磨、出料、烘干、辊磨、流延、叠片压片、排胶、烧结过程后，即得到上述陶瓷材料。与现有技术相比，本发明提供的材料，作为一种多层复合无铅材料，该陶瓷具有新型的设计结构，所表现出的宽温度区间内的高电卡效应在新型固态制冷技术领域有巨大应用前景，其性能优异的同时不易对环境造成污染和破坏，具有制备成本低、稳定性好等优点。
Sodium bismuth titanate-based relaxor ferroelectric ceramic material with component gradient structure and preparation method of sodium bismuth titanate-based relaxor ferroelectric ceramic material
一种具有成分梯度结构钛酸铋钠基弛豫铁电陶瓷材料以及制备方法
ZHAI JIWEI (author) / LIN WEIKANG (author) / LI GUOHUI (author) / SHEN BO (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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