Fabrication and characterization of porous implant products with aligned pores by EBM method for biomedical application

Naoko Ikeo*, Takuya Ishimoto, Hidetsugu Fukuda, Takayoshi Nakano

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Recently, more attention has been devoted to porous implants to avoid stress-shielding effects and facilitate anchor effects. In addition, our previous research revealed that uniaxially aligned pores promoted early recovery of bone tissue with high bone quality similar to that of intact bone. In this study, Ti-based implant materials with uniaxially aligned pores were fabricated using the electron beam melting (EBM) method with 2 types of grid spacing, 0.5 and 1.0 mm. Although grid spacing was varied, the constituent phase and microstructure of the products were homogenous regardless of the grid spacing. Uniaxially aligned pores were created when the grid spacing was 1.0 mm, whereas almost solid structures with random pores were formed when the grid spacing was 0.5 mm. Young's modulus of the products with the grid spacing of 1.0 mm was 34 GPa; this value is close to that of the bone. It is concluded that the porous material with aligned pores is suitable as a bone implant to reduce stress-shielding effects and to induce bone regeneration with good bone quality.

Original languageEnglish
Title of host publicationTHERMEC 2011 Supplement
Pages142-145
Number of pages4
DOIs
StatePublished - 2012
Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
Duration: 2011/08/012011/08/05

Publication series

NameAdvanced Materials Research
Volume409
ISSN (Print)1022-6680

Conference

Conference7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
Country/TerritoryCanada
CityQuebec City, QC
Period2011/08/012011/08/05

Keywords

  • Biomaterial
  • Electron beam melting (EBM)
  • Elongated pore
  • Low Young's modulus
  • Porous implants
  • Rapid prototyping
  • Stress-strain curve

ASJC Scopus subject areas

  • General Engineering

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