Zirkonya İlave Edilmiş Hidroksiapatitlerin Yoğunluk ve İç Yapı İncelemeleri

Yıl 2010, Cilt: 2 Sayı: 2, 48 - 51, 15.06.2010

Zafer Evis

Öz

Zirkonya ilave edilmiş hidroksiapatitler çöktürme yöntemi ile üretilmiş ve 1100ºC ve 1300ºC’lerde 1 saat havada sinterlenmişlerdir. Zirkonya ilave edilmiş hidroksiapatitlerde 3- kalsiyum fosfat gibi ikincil fazlar oluşmuştur. Ayrıca, zirkonya eklenmiş hidroksiapatitlerin kafes parametrelerindeki farklılıkların sebebi, hegzagonal kristal yapısına ilave edilmiş olan bazı Zr4+ iyonlarıdır. Saf hidroksiapatitin teorik yoğunluğuna ulaşması için sinterleme sıcaklığı olarak 1100 ºC yeterli olurken, zirkonya ilave edilmiş hidroksiapatitlerde, yoğun malzeme üretimi için 1100 ºC’den yüksek sinterleme sıcaklıkları gerektiği belirlenmiştir.

Anahtar Kelimeler

Biyoseramikler; Hidroksiapatit, Zirkonya; Sinterleme

Zirkonya İlave Edilmiş Hidroksiapatitlerin Yoğunluk ve İç Yapı İncelemeleri

Öz

Zirconia added hydroxyapatites were synthesized by a precipitation method and sintered in air at 1100ºC ve 1300ºC for 1 hour. Secondary phases such as tri-calcium phosphates were formed in zirconia added hydroxyapatites. Moreover, lattice parameters of zirconia added hydroxyapatites were changed because of the presence of Zr4+ ions in the crystal structure. Although density of pure hydroxyapatite can reach to the theoretical density after the sintering at 1100 ºC, zirconia added hydroxyapatites should be sintered above 1100 ºC to obtain high densities.

Anahtar Kelimeler

Bioceramics; Hydroxyapatite, Zirconia; Sintering

Kaynakça

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