Nanoeomposite prepared from carbon nanotubes and hydroxyapatite precursors

Mamorn Omori, Tafcashi Watanabe, Masaaki Tanaka, Akira Okubo, Hisainichi Kimura, Toshiyuki Hashida

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Multi-walled carbon nanotubes (MWNTs) and the hydroxyapatite (HA) precursor of CaHPO4 and Ca(OH)2 were mixed in water slurry and sintered at 1200°C at 120 MPa by spark plasma sin- tering (SPS). MWNTs were dispersed in the composite as agglomerates less than 50 pm in length and 5 pm in width, consisting of MWNTs and alumina nanociystals smaller than 100 mil. The bulk density and Vickers hardness were decreased with increasing content of MWNTs. The strength of the composite was improved by the addition of MWNTs. Pull-out MWNTs were observed on the fracture surface of the agglomerate and contributed to strengthen the composite.

Original languageEnglish
Pages (from-to)137-142
Number of pages6
JournalNano Biomedicine
Issue number2
Publication statusPublished - 2009


  • Aluminum hydroxide
  • Carbon nanotube composite
  • Hydroxyapatite
  • Spark plasma sintering


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