Preparation of porous Ca-10(PO4)(6)(OH)(2) and beta-Ca-3(PO4)(2) bioceramics

Date

2000-07-01

Author

Engin, NO
Tas, AC

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

211
views

0
downloads

Submicrometer-sized, pure calcium hydroxyapatite (HA, (Ca-10(PO4)(6)(OH)(2))) and eta-tricalcium phosphate (beta-TCP, Ca-3(PO4)(2)) bioceramic powders, that have been synthesized via chemical precipitation techniques, were used in the preparation of aqueous slurries that contained methyl cellulose to manufacture porous (70%-95% porosity) HA or beta-TCP ceramics. The pore sizes in HA bioceramics of this study were 200-400 mu m, whereas those of beta-TCP bioceramics were 100-300 mu m. The pore morphology and total porosity of the HA and beta-TCP samples were investigated via scanning electron microscopy, water absorption, and computerized tomography.

Subject Keywords

Bioceramics, Hydroxyapatite, Phosphates

URI

https://hdl.handle.net/11511/65074

Journal

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Synthesis of biomimetic Ca-hydroxyapatite powders at 37 degrees C in synthetic body fluids Tas, AC (2000-07-01) An important inorganic phase for synthetic bone applications, calcium hydroxyapatite (HA, Ca-10(PO4)(6)(OH)(2)), was prepared as a nano-sized (similar to 50 nm), homogeneous and high-purity ceramic powder from calcium nitrate tetrahydrate and diammonium hydrogen phosphate salts dissolved in modified synthetic body fluid (SBF) solutions at 37 degrees C and pH of 7.4 using a novel chemical precipitation technique. The synthesized precursors were found to easily reach a phase purity >99% after 6 h of calcinati...
Preparation, modification, and characterization of acrylic cements Basgorenay, B; Ulubayram, K; Serbetci, K; Onurhan, E; Hasırcı, Nesrin (2006-03-15) Acrylic cements with different compositions were prepared by mixing the solid part (composed of poly(methyl methacrylate), PMMA, and benzoyl peroxide, BPO) and the liquid part (composed of methyl methacrylate, MMA, and N,N-dimethyl-p-toluidine, DMPT), modified by addition of hydroxyapatite (HA) and ammonium nitrate (AN) and characterized by measuring thermal and mechanical properties. Three sets of samples were prepared. For B-group, the total amount of solid including HA was constant but the PMMA to HA rat...
Fabrication and characterization of porous hydroxyapatite and biphasic calcium phosphate ceramic as bone substitutes Koc, N; Timucin, M; Korkusuz, Feza (2004-01-01) In the present study, the calcium phosphate powders (HAP, HAP-TCP) were produced by a precipitation technique involving the use of aqueous solutions of calcium nitrate and diammonium hydrogen phosphate. Preforms of calcium phosphate ceramics were produced by using a modified slip casting technique. Porosity in the cast and in the sintered ceramic was obtained through custom made PMMA beads similar to200-300 mum size. The green ceramic samples were prepared by suspending the apatite powder and PMMA beads in ...
Preparation and Characterization of Mixed Halide MAPbI(3-x)Cl(x) Perovskite Thin Films by Three-Source Vacuum Deposition Babaei, Azin; Soltanpoor, Wiria; Tesa-Serrate, Maria A.; Yerci, Selçuk; Sessolo, Michele; Bolink, Henk J. (2020-04-01) Chloride is extensively used in the preparation of metal halide perovskites such as methylammonium lead iodide (MAPbI(3-x)Cl(x)), but its persistence and role in solution-processed materials has not yet been rationalized. Multiple-source vacuum deposition of perovskites enables a fine control over thin-film stoichiometry and allows the incorporation of chemical species irrespective of their solubility. Herein, the first example of mixed MAPbI(3-x)Cl(x) thin films prepared by three-source vacuum deposition i...
Synthesis of calcium carbonate particles for biomedical applications Oral, Çağatay Mert; Ercan, Batur; Department of Metallurgical and Materials Engineering (2020) Calcium carbonate (CaCO3) particles have been widely used in biomedical applications owing to their biocompatibility and biodegradability. In order to effectively utilize CaCO3 particles in biomedical applications, their physical and chemical properties should be systematically controlled. However, this is a challenging task due to the presence of three different anhydrous CaCO3 polymorphs having complex crystallization behavior. In this thesis, CaCO3 particles were synthesized at distinct environments to c...

Citation Formats

N. Engin and A. Tas, “Preparation of porous Ca-10(PO4)(6)(OH)(2) and beta-Ca-3(PO4)(2) bioceramics,” JOURNAL OF THE AMERICAN CERAMIC SOCIETY, pp. 1581–1584, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65074.