Scholarlink

<p>This study explores the advantages of utilizing the rough surfaces of additively manufactured implants. For this purpose, samples of Ti6Al4V, fabricated through laser powder-bed fusion (LPBF), were anodized before and after surface polishing. The roughness of the as-built samples was 4.34 Ra, while the polished samples had a roughness of 0.037 Ra. This resulted in the formation of amorphous TiO<sub>2</sub> nanotubes. The nanotubes grown on the rough surface exhibited inner and outer diameters of 65 and 143&#xa0;nm, respectively, which was 35% larger in diameter and 24% thicker compared to those formed on smooth surfaces. The PCL composite coating composed of Ag-doped bioactive glass electrosprayed on the surfaces showed that rough surfaces had a higher coating capacity. Also, the coating adhered to the rough surface with an approximate strength of 5.78&#xa0;MPa, compared to 2.67&#xa0;MPa on the smooth surface. Interestingly, corrosion resistance of the as-built samples was found to be higher than that of the polished samples. The results indicate that the utilization of anodized additive manufactured sample can have a great potential for facile implant fabrication.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Characterization of TiO2 nanotube formation on additively manufactured Ti6Al4V surfaces for medical implants

  • 期刊论文

  • 发表日期：

    2025年1月31日

查看全文
  • Majid Goli,
  • Kimia Eslami Shahrebabaki,
  • Sharareh Mehrnoush,
  • Sheyda Labbaf

摘要

This study explores the advantages of utilizing the rough surfaces of additively manufactured implants. For this purpose, samples of Ti6Al4V, fabricated through laser powder-bed fusion (LPBF), were anodized before and after surface polishing. The roughness of the as-built samples was 4.34 Ra, while the polished samples had a roughness of 0.037 Ra. This resulted in the formation of amorphous TiO2 nanotubes. The nanotubes grown on the rough surface exhibited inner and outer diameters of 65 and 143 nm, respectively, which was 35% larger in diameter and 24% thicker compared to those formed on smooth surfaces. The PCL composite coating composed of Ag-doped bioactive glass electrosprayed on the surfaces showed that rough surfaces had a higher coating capacity. Also, the coating adhered to the rough surface with an approximate strength of 5.78 MPa, compared to 2.67 MPa on the smooth surface. Interestingly, corrosion resistance of the as-built samples was found to be higher than that of the polished samples. The results indicate that the utilization of anodized additive manufactured sample can have a great potential for facile implant fabrication.

Graphical abstract