Kolemanit ve diamonyum fosfatın farklı yüksek sıcaklıklarda oluşturduğu ürünlerin yapılarının karakterizasyonu

Abstract

Yapılan bu çalışmada; kolemanit (2CaO. 3B2O. 5H2O) ve diamonyum fosfat (NH)2HPO) bileşiklerinin 1200 oC ve 850 oC’de 6 saat ısıtılması ile oluşan katı hal reaksiyonu sonucunda elde edilen ürünlerin yapıları aydınlatılmıştır. Yapılan XIşınları mineral analizi, FT-IR spektrumu ile yapılan DTA-TG analizleri ve çekilen SEM fotoğrafları EDX analizleri ile 1200 oC’de oluşan ürünün bor içeren hidroksiapatit yapısında olduğu, 850 oC’de oluşan ürünün ise CaB2O4 ve BPO4 yapısında olduğu tespit edilmiştir. Apatit yapısının PO4 gruplarının tetrahedral yapıda olduğu belirlenmiştir

Keywords

• Kolemanit, Katı hal sentezi, Hidroksiapatit, X-Işını Kırınımı, FT-IR Analizi

Abstract

In this study, Calcium borohydroxyapatites was synthesized by solid state reaction of colemanite and diamonium phosphate at 850 oC and 1200 oC. During the synthesis experiment at 1200 oC, calcium borohydroxyapatite and B2O3 was observed . When colemanite is added, phosphate and OH groups would be partially substituted by borate groups and new calcium borohydroxyapatite has been formed. CaB2O4 and BPO were synthesized by same conditions at 850 oC. Samples was characterized by X-ray powder diffraction, FTIR spectra, DTA-TG analyses and SEM EDX analyses. The structure of apatite is based tetrahedral PO4 groups

Keywords

• Colemanite, Hydroxyapatite, Solid State Synthesis, X-ray Powder Diffraction, FTIR Analyses

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