DLP printing of BT/HA nanocomposite ceramic scaffolds using low refractive index BT crystals  

作　　者：Ruixuan Xue Peimei Yuan Bo Zhao Fei Jing Xuyuan Kou Wangyang Yue Yan wang Dongmei Wang Galhenage Asha Sewvandi Dengwei Hu 

机构地区：[1]Faculty of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Key Laboratory of Functional Materials of Baoji Engineering Research Center for Titanium Based Functional Materials and Devices,Universities of Shaanxi Province,1 Hi-Tech Avenue,Baoji,721013,Shaanxi,China [2]Department of Materials Science and Engineering,Faculty of Engineering,University of Moratuwa,Katubedda,Sri Lanka

出　　处：《Journal of Materiomics》2024年第5期1036-1048,共13页无机材料学学报（英文）

基　　金：This work was supported in part by the National Natural Science Foundation of China(No.21005003);the Natural Science Basic Research Plan in Shaanxi Province of China(2019JM-091);the Industrial Science and Technology Plan in Shaanxi Province of China(22JC004);The Graduate Innovative Research Project of Baoji University of Arts and Sciences(YJSCX22YB61).

摘　　要：Biological piezoelectric materials have significant potential for bone repair and energy harvesting owing to their excellent biocompatibility and piezoelectric effect.The BaTiO_(3)/Ca_(10)(PO_(4))_(6)(OH)_(2)(BT/HA)composite material is an outstanding representative of biological piezoelectric materials,which has not been individually designed using digital light processing(DLP)3D printing because of the large difference in the refractive index of its components.Therefore,in this work,double-sided-tooth plate-like BT crystals with high curvature were prepared via a hydrothermal process,and BT/HA ceramic slurries were grinded out using dispersed intermittent ball milling scheme,and BT/HA nanocomposite ceramic scaffolds were fabricated by DLP 3D printing technology.The nanostructure,dielectric properties,and piezoelectric energy harvesting performance of the BT/HA nanocomposite ceramic scaffolds were evaluated.The influences of different morphologies and contents for BT on the piezoelectric potential and stress distribution were analyzed based on a multi-physics coupling finite element simulation.The cell proliferation and adhesion abilities were investigated also.The BT/HA nanocomposite ceramic scaffolds present excellent dielectric properties,cell proliferation and adhesion abilities,and an open circuit voltage of 8 V during piezoelectric energy harvesting.The material properties and multi-physics coupling finite element analysis imply that the double-sided-tooth plate-like BT plays an important role for the fastness structure and electric field distribution in the BT/HA nanocomposite.Thus,this work provides a strategy for the application of the customized BT/HA nanocomposite ceramic scaffolds in new-generation orthopedic implants and biological energy harvesting.

关 键 词：3D printing BT/HA nanocomposite ceramics Bio-piezoelectric scaffolds Energy harvesting 

分 类 号：TQ174.1[化学工程—陶瓷工业] TB33[化学工程—硅酸盐工业]