Sintering effect on mechanical properties of composites of enamel derived hydroxyapatite (EHA) and titanium

Gunduz O., Oktar F., Oz B., Altundal H., Agathopoulos S., Salman S., ...Daha Fazla

BIOCERAMICS 18, PTS 1 AND 2, ss.1137-1140, 2006 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2006
  • Doi Numarası: 10.4028/www.scientific.net/kem.309-311.1137
  • Dergi Adı: BIOCERAMICS 18, PTS 1 AND 2
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1137-1140
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Hydroxyapatite (HA) is one of the most promising biomaterials, which is on use since decades in biomedicine. Because of the known mechanical weakness of HA in load carrying situations, various dopants, like ceramic oxides and metallic particles, have been used to produce HA-composite materials. In this study, Ti powders were admixed with enamel derived HA at 5 and 10 wt %. After ball milling, the mixtures were uniaxially pressed into pellets of a cylindrical form. The composites were sintered at temperatures between 1000 degrees C and 1300 degrees C. Microhardness, compression strength, and density measurements together with X-ray diffraction analysis and SEM studies were performed. The best mechanical values were obtained for the samples sintered between 1100 degrees C and 1300 degrees C.