1976
DOI: 10.1007/pl00020328
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Hydroxylapatite synthesis and characterization in dense polycrystalline form

Abstract: A new process is described for preparing dense, polycrystalline hydroxylapatite. This material has close to theoretical density and is free of fine pores and second phases. The best material has an average compressive strength of 917 MN m -2 (133 • 103 psi), and polished samples have an average tensile strength of 196 MN m-2 (28.4 • 103 psi). The material is highly translucent, and the degree of translucence depends upon processing conditions. The relationship between processing variables and microstructure, s… Show more

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Cited by 517 publications
(194 citation statements)
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“…Jarcho et al 23 discovered that the value of k was related with the grain size directly. Thus the modification and integration of Eq.…”
Section: Resultsmentioning
confidence: 99%
“…Jarcho et al 23 discovered that the value of k was related with the grain size directly. Thus the modification and integration of Eq.…”
Section: Resultsmentioning
confidence: 99%
“…Ninaún paciente prese'ntabaenfermedades sistémicas y La hidroxiapatita porosa coralina HAP-200 se en los casos de sepsis, éstas fueron tratadas produce en Ccba a partir de corales marinos y previamente, hasido sometidaa pruebas clínicas controladas en animales, realizándose estudios clínicos, El método de tratamiento consistió en el curetaje histopatológicos y cultivos de tejido in vitro que quirúrgico o exéresis de la lesión tumoral, lavado validan la biocompatibilidad del material y ga-cuidadoso del lecho receptor y relleno del defecrantizan suaplicabilidad en la prácticamédica (14). to óseo resultante con biomaterial coralina HAPEn general, los biomateriales de fosfatos de calcio e hidroxiapatita han sido empleados ampliamente en cirugía endobucal y maxilofacial con excelentes resultados (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26). Sin embargo, su uso no ha sido muy extendido en ortopedia y traumatología, especialidades a las cuales la vida moderna imprime cada vez más exigencias dada la frecuencia y magnitud de los accidentes, responsables directos de grandes pér-didas de sustancia ósea, así como por otras causas, a las que los biomateriales pueden ofrecer una feliz solución.…”
Section: Discussionunclassified
“…Çöktürme yöntemi Doremus ve ark. tarafından geliştirilmiş olup, bu metot ile sitokiyometrik ve nano tane boyutlarına sahip HA üretimi mümkün olmuştur [12]. Çöktürme metodunda, Ca/P oranı 1,667 olacak şekilde kalsiyum nitrat ve amonyum hidrojen fosfat kimyasalları belli molar oranlarda ve pH değeri 11-12 olacak şekilde bazik ortamda amonyum hidroksit eklenerek bir solüsyon oluşturulur [13] Rietveld yöntemi, genellikle kristal malzemelerin karakterizasyonunu belirlemede kullanılmaktadır.…”
Section: Methods)unclassified