A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lead-free high-entropy piezoelectric ceramic material with excellent energy harvesting temperature stability and preparation
The invention discloses a lead-free high-entropy piezoelectric ceramic material with excellent energy harvesting temperature stability and preparation, and belongs to the field of piezoelectric ceramic materials. The chemical composition of a matrix of the ceramic material is (1-x) [0.96 (K < 0.48 > Na < 0.52 >) (Nb < 0.96 > Sb < 0.04 >) O < 3 >-0.04 (Bi < 0.5 > Na < 0.5 >) ZrO < 3 >] + x [0.70 > BiFeO < 3 >-0.30 BaTiO < 3 > + 0.1 mol% MnO < 2 >], the numerical values of x are 0, 0.05 and 1, the corresponding configuration entropy S is 0.93 R, 1.46 R and 1.22 R, and preferably, a high-entropy material system with the numerical value of x being 0.05 is adopted. The raw materials are mixed according to the corresponding metering ratio, and a sample is prepared through the steps of wet grinding, drying, granulation, compression molding and sintering. According to the invention, stable power generation of the lead-free piezoelectric energy collector in a wide temperature zone is realized, and the lead-free piezoelectric energy collector plays a significant role in promoting the piezoelectric energy collection technology industry.
一种具有优异能量收集温度稳定性的无铅高熵压电陶瓷材料及制备，属于压电陶瓷材料领域。该陶瓷材料的基体化学组成为(1‑x)[0.96(K0.48Na0.52)(Nb0.96Sb0.04)O3‑0.04(Bi0.5Na0.5)ZrO3]+x[0.70BiFeO3‑0.30BaTiO3+0.1mol％MnO2]，其中x的数值为0，0.05和1，对应构型熵△S为0.93R，1.46R和1.22R，优选其中x数值为0.05的高熵材料体系。按相应计量比配料，采用湿磨、烘干、造粒、压制成型、烧结步骤制备样品。本发明实现了无铅压电能量收集器在宽温区稳定发电，对压电能量收集技术工业具有重大的推进作用。
Lead-free high-entropy piezoelectric ceramic material with excellent energy harvesting temperature stability and preparation
The invention discloses a lead-free high-entropy piezoelectric ceramic material with excellent energy harvesting temperature stability and preparation, and belongs to the field of piezoelectric ceramic materials. The chemical composition of a matrix of the ceramic material is (1-x) [0.96 (K < 0.48 > Na < 0.52 >) (Nb < 0.96 > Sb < 0.04 >) O < 3 >-0.04 (Bi < 0.5 > Na < 0.5 >) ZrO < 3 >] + x [0.70 > BiFeO < 3 >-0.30 BaTiO < 3 > + 0.1 mol% MnO < 2 >], the numerical values of x are 0, 0.05 and 1, the corresponding configuration entropy S is 0.93 R, 1.46 R and 1.22 R, and preferably, a high-entropy material system with the numerical value of x being 0.05 is adopted. The raw materials are mixed according to the corresponding metering ratio, and a sample is prepared through the steps of wet grinding, drying, granulation, compression molding and sintering. According to the invention, stable power generation of the lead-free piezoelectric energy collector in a wide temperature zone is realized, and the lead-free piezoelectric energy collector plays a significant role in promoting the piezoelectric energy collection technology industry.
一种具有优异能量收集温度稳定性的无铅高熵压电陶瓷材料及制备，属于压电陶瓷材料领域。该陶瓷材料的基体化学组成为(1‑x)[0.96(K0.48Na0.52)(Nb0.96Sb0.04)O3‑0.04(Bi0.5Na0.5)ZrO3]+x[0.70BiFeO3‑0.30BaTiO3+0.1mol％MnO2]，其中x的数值为0，0.05和1，对应构型熵△S为0.93R，1.46R和1.22R，优选其中x数值为0.05的高熵材料体系。按相应计量比配料，采用湿磨、烘干、造粒、压制成型、烧结步骤制备样品。本发明实现了无铅压电能量收集器在宽温区稳定发电，对压电能量收集技术工业具有重大的推进作用。
Lead-free high-entropy piezoelectric ceramic material with excellent energy harvesting temperature stability and preparation
一种具有优异能量收集温度稳定性的无铅高熵压电陶瓷材料及制备
HOU YUDONG (author) / XI KAIBIAO (author) / HUANG SHENGCHEN (author) / ZHU MANKANG (author) / ZHENG MUPENG (author)
2024-07-30
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2023