Nano to micro size transition of hydroxyapatite in porcine bone during heat treatment with low heating rates
Por:
Castillo-Paz, Angelica M., Londoño-Restrepo S.M., Tirado-Mejia, Liliana, Mondragon, M. A., Rodriguez-Garcia, Mario E.
Publicada:
1 ago 2020
Ahead of Print:
1 ene 2020
Resumen:
This work focuses on the changes of raw hydroxyapatite obtained from porcine bones during heat treatment with heating rates of 2.5 and 5.0 °C/min between 600 °C and 1100 °C. High-Resolution transmission electron microscopy (HR-TEM) images showed that raw hydroxyapatite was formed by high-ordered nanometric platelet crystals with a length of around 18 nm and width around 7 nm. High-Resolution scanning electron microscopy (HR-SEM) images evidenced the coalescence phenomena during heating giving. It was found that the growth of the crystals and the transition from nano to a micro-size occurred at around 700 °C. And the changes in the full width at half maximum (FWHM) for the characteristic (002) plane of the X-ray diffraction patterns and the FWHM of the characteristic Raman band at 960 cm-1 for ?1 PO43- exhibited the transition from nano to a micro size, that was confirmed by HR-SEM images and the thermogravimetric (TG) analysis. The porosity of the BIO-HAp changes from intra nanometric to intercrystalline. © 2020 Chinese Materials Research Society
Filiaciones:
Castillo-Paz, Angelica M.:
Grupo de Optoelectrónica, Instituto Interdisciplinario de las Ciencias, Universidad del Quindío, ArmeniaQuindío, Colombia
Centro de Investigación y de Estudios Avanzados del IPN, Unidad Querétaro, Qro., Mexico
Univ Quindio, Inst Interdisciplinario Ciencias, Grp Optoelect, Armenia, Quindio, Colombia
Ctr Invest & Estudios Avanzados IPN, Unidad Queretaro, Queretaro, Qro, Mexico
Londoño-Restrepo S.M.:
Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, QroC.P 76230, Mexico
Tirado-Mejia, Liliana:
Grupo de Optoelectrónica, Instituto Interdisciplinario de las Ciencias, Universidad del Quindío, ArmeniaQuindío, Colombia
Univ Quindio, Inst Interdisciplinario Ciencias, Grp Optoelect, Armenia, Quindio, Colombia
Mondragon, M. A.:
Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, QroC.P 76230, Mexico
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Dept Nanotecnol, Campus Juriquilla, Queretaro 76230, Qro, Mexico
Rodriguez-Garcia, Mario E.:
Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, QroC.P 76230, Mexico
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Dept Nanotecnol, Campus Juriquilla, Queretaro 76230, Qro, Mexico
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