[1] [1] TU R,ZHANG B,SODANO H A.Lead titanate nanowires/polyamide-imide piezoelectric nanocomposites for high-temperature energy harvesting ［J］.Nano Energy,2022,97:107175.

[2] [2] WANG S,MA W,WU J,et al.Preparation technology of 3-3 composite piezoelectric material and its influence on performance［J］.Journal of Alloys and Compounds,2020,864:158137.

[3] [3] BOUMCHEDDA K,HAMADI M,FANTOZZI G.Properties of a hydrophone produced with porous PZT ceramic［J］.Journal of the European Ceramic Society,2007,27(13/15):4169-4171.

[4] [4] CHI Mengshuang,MA Weibing,GUO Jingdong,et al.Effect of NaCl on the microstructure and electrical properties of K0.5Na0.5NbO3 ceramics prepared by cold sintering process ［J］.Journal of Materials Science:Materials in Electronics,2019,30(24):21435-21443.

[5] [5] NEWNHAM R E,SKINNER D P,CROSS L E.Connectivity and piezoelectric-pyroelectric composite［J］.Materials Research Bulletin,1978,13(5):525-536.

[6] [6] SANTOS J A,SANCHES A O,AKASAKI J L,et al.Influence of PZT insertion on Portland cement curing process and piezoelectric properties of 0-3 cement-based composites by impedance spectroscopy ［J］.Construction and Building Materials,2020,238:117675.

[7] [7] YI Shangling,ZHANG Wenkang,GAO Guangpeng,et al.Structural design and properties of fine scale 2-2-2 PZT/epoxy piezoelectric composites for high frequency application ［J］.Ceramics International,2018:10940-10944.

[8] [8] MA Jinpeng,ZHU Ke,HUO Da,et al.Performance enhancement of 1-3 piezoelectric composite materials by alternating current polarising［J］.Ceramics International,2021,47:18405-18410.

[9] [9] WANG Shenghui,MA Weibing,WU Jinquan,et al.Preparation technology of 3-3 composite piezoelectric material and its influence on performance［J］.Journal of Alloys and Compounds,2021,864:158137.

[10] [10] LEE S H,JUN S H,KIM H E,et al.Piezoelectric properties of PZT-based ceramic with highly aligned pores［J］.Journal of the American Ceramic Society,2008,91(6):1912-1915.

[11] [11] BURGERT I,FRATZL P.Actuation systems in plants as prototypes for bioinspired devices［J］.Philos Trans R Soc A-Math Phys Eng Sci,2009,367(1893):1541-1557.

[12] [12] PAU L,CALVER T,ROBER T,et al.Chemical solid free-form fabrication:making shapes without molds ［J］.Chemistry of Materials,1997,9(3):650-663.

[13] [13] AHN B Y,SHOJI D,HANSEN C J,et al.Printed origami structures［J］.Adv Mater,2010,22(20):2251-2254.

[14] [14] BAKARICH S E,GORKIN R,PANHUIS M I H,et al.4D printing with mechanically robust,thermally actuating hydrogels［J］.Macromolecular Rapid Communications,2015,36(12):1211-1217.

[15] [15] CHEN Zhangwei,LI Ziyong,LI Junjie,et al.3D printing of ceramics:A review［J］.Journal of the European Ceramic Society,2018,39(4):661-687.

[16] [16] BODKHE S,ERMANNI P.3D printing of multifunctional materials for sensing and actuation:merging piezoelectricity with shape memory［J］.European Polymer Journal,2020,132(1):109738.

[17] [17] LI Yayun,LI Longtu,LI Bo.Direct ink writing of 3-3 piezoelectric composite［J］.Journal of Alloys and Compounds,2015,620:125-128.

[18] [18] LIU Kai,ZHANG Qingqing,ZHOU Chenyang,et al.4D printing of lead zirconate titanate piezoelectric composites transducer based on direct ink writing［J］.Frontiers in Materials,2021,8:659441.

[19] [19] GUO R,CROSS L E,PARK S E,et al.Origin of the high piezoelectric response in PbZr1-xTixO3［J］.Phys Rev Lett,2000,84(23):5423-5426.