• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Zhao, Xin (Zhao, Xin.) | Chen, Jimin (Chen, Jimin.) | Zeng, Yong (Zeng, Yong.)

收录:

EI Scopus SCIE

摘要:

BaTiO3/Ca10(PO4)6(OH)2 composite ceramic is an outstanding representative of piezoelectric biomaterials, with excellent biocompatibility and piezoelectric effect, and has potential applications in the field of bone tissue repair. In this work, vat photopolymerization 3D printing technology was used to fabricate triply periodic minimal surface structure BaTiO3/Ca10(PO4)6(OH)2 composite ceramic bone tissue scaffolds with different pore sizes and porosity, and their mechanical and electrical properties were studied. First, the ceramic slurry configuration process was optimized to obtain a ceramic slurry with high solid content (45 vol%) and excellent rheological properties. Then the effect of sintering temperature on microstructure, relative density, mechanical properties, and electrical properties is discussed. The results show that when sintering at 1300 degrees C, the BaTiO3/ Ca10(PO4)6(OH)2 composite ceramic has the highest relative density (99.18 %), the highest compressive strength (44 MPa), large relative dielectric constant (379-389), and low dielectric loss. The polarization electric field strength of the BaTiO3/Ca10(PO4)6(OH)2 composite ceramic was set to 15 kV/cm through the test of the hysteresis loop. Finally, based on multi-physics coupled finite element simulation, the effects of different porosity and different pore sizes on stress distribution and piezoelectric potential were analyzed, and the relationship between them was explored through experiments. The results show that as the porosity increases and the pore size decreases, the mechanical properties of the scaffold decrease significantly, and its compressive strength ranges between 1.67 and 4.26 MPa; as the porosity increases and the pore size increases, the piezoelectric coefficient (d33) of the scaffold showed a decreasing trend, and its d33 ranged between 2 and 9 pC/N. The mechanical and electrical properties of the scaffold meet the performance requirements of cancellous bone. In summary, this work provides a strategy for the application of customized BaTiO3/Ca10(PO4)6(OH)2 composite ceramic scaffolds in new-generation orthopedic implants.

关键词:

Electric properties Mechanical properties BaTiO 3 /Ca 10 (PO 4 ) 6 (OH) 2 composite ceramics 3D printing

作者机构:

  • [ 1 ] [Zhao, Xin]Beijing Univ Technol, Sch Phys & Optoelect Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Chen, Jimin]Beijing Univ Technol, Sch Phys & Optoelect Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zeng, Yong]Beijing Univ Technol, Sch Phys & Optoelect Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Xin]Beijing Engn Res Ctr 3D Printing Digital Med Hlth, Beijing 100124, Peoples R China
  • [ 5 ] [Chen, Jimin]Beijing Engn Res Ctr 3D Printing Digital Med Hlth, Beijing 100124, Peoples R China
  • [ 6 ] [Zeng, Yong]Beijing Engn Res Ctr 3D Printing Digital Med Hlth, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zeng, Yong]Beijing Univ Technol, Sch Phys & Optoelect Engn, Beijing 100124, Peoples R China;;

电子邮件地址:

查看成果更多字段

相关关键词:

相关文章:

来源 :

CERAMICS INTERNATIONAL

ISSN: 0272-8842

年份: 2024

期: 23

卷: 50

页码: 49021-49032

5 . 2 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次:

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

归属院系:

在线人数/总访问数:446/4985066
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司