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Microwave-fabrication and Properties of NKN Based Lead-free Piezoelectric Ceramics Co-doped with CaO and B2O3
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Haitao LI1, 2, 3, Ran LI1, Guangxin WANG2, Han ZHANG1, Yajun WANG1, Xiaobing WANG1, Xiaozhen ZHANG1
Journal of the Chinese Ceramic Society | 2020, 48(9) : 1396 - 1404
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Journal of the Chinese Ceramic Society | 2020, 48(9): 1396-1404
Microwave-fabrication and Properties of NKN Based Lead-free Piezoelectric Ceramics Co-doped with CaO and B2O3
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Haitao LI1, 2, 3, Ran LI1, Guangxin WANG2, Han ZHANG1, Yajun WANG1, Xiaobing WANG1, Xiaozhen ZHANG1
Affiliations
  • 1.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan, China
  • 2.Research Center for High Purity Materials, Henan University of Science and Technology, Luoyang 471023, Henan, China
  • 3.Collaborative Innovation Center of Nonferrous Metals Henan Province, Luoyang 471023, Henan, China
  • LI Haitao (1973-), male, Ph.D., Associate Professor. E-mail:

About Author:

LI Haitao (1973-), male, Ph.D., Associate Professor. E-mail:

Published: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20190269
Outline
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(Na0.535K0.48)Nb0.91Sb0.09O3+x%CaO-B2O3 (NKNS-xCB) lead-free piezoelectric ceramics were fabricated by conventional and microwave heating processes. The prepared samples were characterized by X-ray diffraction, differential scanning calorimetry and scanning electron microscopy, and the effects of dopant content and heating process on the phase structure and properties of as-prepared ceramics were also investigated. The results reveal that the duration used to synthesize NKNS ceramic powder by microwave heating process is 1/6 of that by conventional heating process. The duration of microwave heating process is only 3/4 times shorter than that of conventional heating process for the fabrication of NKNS-xCB ceramic, and the samples prepared by microwave heating process have a greater density and better electrical properties. The excellent piezoelectric properties (i.e., d33=225 pC/N, kp=40.2%, and εr=647) are obtained for the sample with x=0.50 fabricated by microwave heating process at 1 020 ℃ for 30 min, indicating that microwave heating is a promising method for the fabriction of NKN-based lead-free piezoelectric ceramic.

traditional solid-phase sintering  /  microwave sintering  /  lead-free piezoelectric ceramics  /  sodium potassium niobate
李海涛, 李冉, 王广欣, 张晗, 王亚军, 王小兵, 张小振. 钙-硼共掺铌酸钾钠基无铅压电陶瓷的微波制备及性能. 硅酸盐学报, 2020 , 48 (9) : 1396 -1404 . DOI: 10.14062/j.issn.0454-5648.20190269
Haitao LI, Ran LI, Guangxin WANG, Han ZHANG, Yajun WANG, Xiaobing WANG, Xiaozhen ZHANG. Microwave-fabrication and Properties of NKN Based Lead-free Piezoelectric Ceramics Co-doped with CaO and B2O3[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (9) : 1396 -1404 . DOI: 10.14062/j.issn.0454-5648.20190269
Year 2020 volume 48 Issue 9
23
7
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Article Info
doi: 10.14062/j.issn.0454-5648.20190269
  • Receive Date:2020-04-13
  • Online Date:2026-10-29
  • Published:2020-09-20
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  • Received:2020-04-13
  • Revised:2020-05-09
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Affiliations
    1.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan, China
    2.Research Center for High Purity Materials, Henan University of Science and Technology, Luoyang 471023, Henan, China
    3.Collaborative Innovation Center of Nonferrous Metals Henan Province, Luoyang 471023, Henan, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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