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Textured lead-free KNN-based piezoelectric ceramic material and manufacturing method thereof
A lead-free KNN-based piezoelectric material represented by the compositional formula (KaNabLic) (NbdTa eSbf) Og, wherein 0.4 < = a < = 0.5, 0.5 < = b < = 0.6, 0.01 < = c < = 0.1, 0.5 < = d < = 1.0, 0.05 < = e < = 0.15, 0.01 < = f < = 0.09, and 1 < = g < = 3. In one embodiment, d33gt of a lead-free KNN-based piezoelectric material; 300 pm/V and T Curigt; the temperature is 250 DEG C; in one embodiment, d33 and T Curie of a lead-free textured KNN-based piezoelectric material can be tuned by creating phase boundaries of (i) orthorhombic to tetragonal (O-T), (ii) rhombohedral to orthorhombic (R-O), and (iii) orthorhombic to tetragonal (O-T). In one embodiment, a lead-free KNN-based piezoelectric material is textured with a sheet or needle tip shaped NaNbO3 or Ba2NaNb5O15 seed crystal. In one embodiment, the amount, orientation or particle size distribution of NaNbO3 or Ba2NaNb5O15 texture seed crystals in the lead-free texture KNN-based piezoelectric material can be changed.
一种由组成式(KaNabLic)(NbdTaeSbf)Og表示的无铅KNN基压电材料，其中0.4≤a≤0.5，0.5≤b≤0.6，0.01≤c≤0.1，0.5≤d≤1.0，0.05≤e≤0.15，0.01≤f≤0.09，1≤g≤3。在一个实施方案中，无铅KNN基压电材料的d33>300pm/V和T居里>250℃。在一个实施方案中，无铅织构KNN基压电材料的d33和T居里可以通过产生(i)正交晶到四方晶(O‑T)，(ii)菱方晶到正交晶(R‑O)，和(iii)正交晶到四方晶(O‑T)的相界来调整。在一个实施方案中，无铅KNN基压电材料用片状或针尖状的NaNbO3或Ba2NaNb5O15晶种织构。在一个实施方案中，可以改变无铅织构KNN基压电材料中NaNbO3或Ba2NaNb5O15织构晶种的量、取向或粒度分布。
Textured lead-free KNN-based piezoelectric ceramic material and manufacturing method thereof
A lead-free KNN-based piezoelectric material represented by the compositional formula (KaNabLic) (NbdTa eSbf) Og, wherein 0.4 < = a < = 0.5, 0.5 < = b < = 0.6, 0.01 < = c < = 0.1, 0.5 < = d < = 1.0, 0.05 < = e < = 0.15, 0.01 < = f < = 0.09, and 1 < = g < = 3. In one embodiment, d33gt of a lead-free KNN-based piezoelectric material; 300 pm/V and T Curigt; the temperature is 250 DEG C; in one embodiment, d33 and T Curie of a lead-free textured KNN-based piezoelectric material can be tuned by creating phase boundaries of (i) orthorhombic to tetragonal (O-T), (ii) rhombohedral to orthorhombic (R-O), and (iii) orthorhombic to tetragonal (O-T). In one embodiment, a lead-free KNN-based piezoelectric material is textured with a sheet or needle tip shaped NaNbO3 or Ba2NaNb5O15 seed crystal. In one embodiment, the amount, orientation or particle size distribution of NaNbO3 or Ba2NaNb5O15 texture seed crystals in the lead-free texture KNN-based piezoelectric material can be changed.
一种由组成式(KaNabLic)(NbdTaeSbf)Og表示的无铅KNN基压电材料，其中0.4≤a≤0.5，0.5≤b≤0.6，0.01≤c≤0.1，0.5≤d≤1.0，0.05≤e≤0.15，0.01≤f≤0.09，1≤g≤3。在一个实施方案中，无铅KNN基压电材料的d33>300pm/V和T居里>250℃。在一个实施方案中，无铅织构KNN基压电材料的d33和T居里可以通过产生(i)正交晶到四方晶(O‑T)，(ii)菱方晶到正交晶(R‑O)，和(iii)正交晶到四方晶(O‑T)的相界来调整。在一个实施方案中，无铅KNN基压电材料用片状或针尖状的NaNbO3或Ba2NaNb5O15晶种织构。在一个实施方案中，可以改变无铅织构KNN基压电材料中NaNbO3或Ba2NaNb5O15织构晶种的量、取向或粒度分布。
Textured lead-free KNN-based piezoelectric ceramic material and manufacturing method thereof
具有织构的无铅KNN基压电陶瓷材料及其制造方法
YEGINGIER HERVE (author) / STRANFORD GEOFFREY T (author) / SEIBERT AARON P (author) / SUVAGE ERIC (author) / AVACCHI AURELIO M (author)
2023-08-01
Patent
Electronic Resource
Chinese
| European Patent Office | 2015
| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2024