A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material and preparation method thereof
The invention belongs to the technical field of lead-free piezoelectric ceramic materials, and particularly relates to a low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material and a preparation method thereof. The invention discloses the low-temperature sintered potassium-sodium niobate-based lead-frees piezoelectric ceramic material. The chemical formula of the material is [(K < 0.43 > Na < 0.57 >) < 0.97 > Li < 0.03 >] [(Nb < 0.9 > Sb < 0.1 >) < 0.91 > Ta < 0.09 >] O < 3> + x mol% X < n > O < m >, wherein the value of x is 0 to 0.6; and XnOm is a metal oxide. The invention also discloses a preparation method of the potassium-sodium niobate-based lead-free piezoelectric ceramic material sintered at low temperature. The low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material with good piezoelectric property is prepared by a special method of synergic modification of three modes of composite substitution of Na < + > and K < + > on A site and Ta < 5 + > and Sb < 5 + > on B site Nb < 5 + > by Li < + > and metal oxide doping, and the prepared low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material has good piezoelectric property. The preparation method of the low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material has the effects of low sintering temperature, simple process and good repeatability and stability, and thus has practical application value.
本发明属于无铅压电陶瓷材料技术领域，具体涉及低温烧结的铌酸钾钠基无铅压电陶瓷材料及其制备方法。本发明公开了低温烧结的铌酸钾钠基无铅压电陶瓷材料，其化学式为：[(K0.43Na0.57)0.97Li0.03][(Nb0.9Sb0.1)0.91Ta0.09]O3+x mol％XnOm；其中：x值为0～0.6；XnOm为金属氧化物。还公开了其低温烧结的铌酸钾钠基无铅压电陶瓷材料的制备方法。本发明通过Li+对A位Na+、K+和Ta5+、Sb5+对B位Nb5+复合取代以及金属氧化物掺杂三种方式协同改性的特殊方法，制备出压电性能良好的低温烧结的铌酸钾钠基无铅压电陶瓷材料，其具有良好的压电性能。本发明提供的低温烧结的铌酸钾钠基无铅压电陶瓷材料的制备方法，其具有烧结温度较低，工艺简单、重复性、稳定性好的效果，因此具有实际应用的价值。
Low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material and preparation method thereof
The invention belongs to the technical field of lead-free piezoelectric ceramic materials, and particularly relates to a low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material and a preparation method thereof. The invention discloses the low-temperature sintered potassium-sodium niobate-based lead-frees piezoelectric ceramic material. The chemical formula of the material is [(K < 0.43 > Na < 0.57 >) < 0.97 > Li < 0.03 >] [(Nb < 0.9 > Sb < 0.1 >) < 0.91 > Ta < 0.09 >] O < 3> + x mol% X < n > O < m >, wherein the value of x is 0 to 0.6; and XnOm is a metal oxide. The invention also discloses a preparation method of the potassium-sodium niobate-based lead-free piezoelectric ceramic material sintered at low temperature. The low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material with good piezoelectric property is prepared by a special method of synergic modification of three modes of composite substitution of Na < + > and K < + > on A site and Ta < 5 + > and Sb < 5 + > on B site Nb < 5 + > by Li < + > and metal oxide doping, and the prepared low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material has good piezoelectric property. The preparation method of the low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material has the effects of low sintering temperature, simple process and good repeatability and stability, and thus has practical application value.
本发明属于无铅压电陶瓷材料技术领域，具体涉及低温烧结的铌酸钾钠基无铅压电陶瓷材料及其制备方法。本发明公开了低温烧结的铌酸钾钠基无铅压电陶瓷材料，其化学式为：[(K0.43Na0.57)0.97Li0.03][(Nb0.9Sb0.1)0.91Ta0.09]O3+x mol％XnOm；其中：x值为0～0.6；XnOm为金属氧化物。还公开了其低温烧结的铌酸钾钠基无铅压电陶瓷材料的制备方法。本发明通过Li+对A位Na+、K+和Ta5+、Sb5+对B位Nb5+复合取代以及金属氧化物掺杂三种方式协同改性的特殊方法，制备出压电性能良好的低温烧结的铌酸钾钠基无铅压电陶瓷材料，其具有良好的压电性能。本发明提供的低温烧结的铌酸钾钠基无铅压电陶瓷材料的制备方法，其具有烧结温度较低，工艺简单、重复性、稳定性好的效果，因此具有实际应用的价值。
Low-temperature sintered potassium-sodium niobate-based lead-free piezoelectric ceramic material and preparation method thereof
低温烧结的铌酸钾钠基无铅压电陶瓷材料及其制备方法
GUO JINMING (author) / ZOU LONGJUN (author) / GU WEI (author) / PENG XUEWEN (author) / DENG DANJIANG (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of potassium-sodium-niobate-based lead-free piezoelectric ceramic
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2021