Crystallite size study of nanocrystalline hydroxyapatite and ceramic system with titanium oxide obtained by dry ball milling

• Published in: Journal of materials science Vol. 42; no. 11; pp. 3851 - 3855
• Main Authors: SILVA, C. C, GRACA, M. P. F, VALENTE, M. A, SOMBRA, A. S. B
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.06.2007; Springer Nature B.V
• Subjects: Applied sciences; Ball milling; Biocompatibility; Biological and medical sciences; Building materials. Ceramics. Glasses; Calcium phosphate; Calcium phosphates; Ceramic industries; Ceramic powders; Cermets, ceramic and refractory composites; Chemical industry and chemicals; Cross-disciplinary physics: materials science; rheology; Crystallites; Drying; Exact sciences and technology; Grain size; Hydroxyapatite; Materials science; Medical sciences; Miscellaneous; Nanocrystals; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Other materials; Physics; Protective coatings; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Raw materials; Scanning electron microscopy; Slaked lime; Specific materials; Surgical implants; Technical ceramics; Technology. Biomaterials. Equipments. Material. Instrumentation; Titanium; Titanium dioxide; Titanium oxides; X ray powder diffraction; Ceramic matrix composite; Scanning electron microscopy; Particle size; Ball mill; Dry process; Grinding(comminution); Hydroxyapatite; Experimental study; X ray diffraction; Ultrafine powder; Precursor; Oxide ceramics; Composite material; Calcium Hydroxides phosphates; Mechanical treatment; High energy; Technical ceramics; Biomaterial; Manufacturing; Calcium hydroxide; Nanocrystal
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-006-0474-0

High energy dry ball milling has been used to produce nanocrystallite powders of Hydroxyapatite (HAP) using the starting materials Ca(H2PO4)2 and Ca(OH)2. The calcium phosphate system with titanium (CaP-Ti) were prepared with the raw materials Ca(H2PO4)2 and TiO2. The HAP was obtained after a couple of hours of milling (5, 10 and 15 h) and in the reaction with CaP-Ti was obtained after 5 h of milling. The HAP and the ceramic calcium phosphate with titanium (CaP-Ti) were studied by X-Ray powder Diffraction and Scanning Electron Microscopy (SEM). The grain size analysis through XRD shows that the particle size of HAP increase of the milling time and the size of CaTi4P6O24 decrease with the increase of the milling time.