Sintering effect on mechanical properties of composites of bovine hydroxyapatite (BHA) and Li2O

Oktar F., Demirer M., Gunduz O., Genc Y., Agathopoulos S., Peker I., ...Daha Fazla

BIOCERAMICS 18, PTS 1 AND 2, ss.49-52, 2006 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2006
  • Doi Numarası: 10.4028/www.scientific.net/kem.309-311.49
  • 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.49-52
  • Anahtar Kelimeler: bovine derived hydroxyapatite, lithium oxide, sintering, mechanical properties, CERAMICS
  • Marmara Üniversitesi Adresli: Evet

Özet

In this study, hydroxyapatite (HA) material, obtained from calcinated bovine bone (BHA), was mixed with 0.25, 0.50, 1.00, and 2.00 wt% Li2CO3. The pressed pellets were sintered at various sintering temperatures between 900 degrees C and 1300 degrees C. Measurements of compression strength, microhardness, and density, along with SEM observation and X-ray diffraction analysis were performed. The experimental results showed that the samples with 0.25 and 0.50% Li2CO3 reached a maximum of densification and the highest values of compression strength and microhardness were achieved after sintering at 1300 degrees C. The wetting effect of a Li2O-associated glassy phase was observed even from 900 degrees C.