Production and characterization of HA, HA/SiO2, and KNN biomaterial granules

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Published: May 21, 2025
DOI: https://doi.org/10.22491/rmct.v40i1.9484.pt
Keywords:
Hidroxiapatita, Piezeletricidade, Biomateriais, Grânulos Hydroxyapatite, Piezoelectricity, Biomaterials, Granules

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Pedro de Farias Vanzan
Instituto Militar de Engenharia
Suzana Noronha Ferreira Ribeiro
Instituto Militar de Engenharia
https://orcid.org/0000-0001-9709-8742
Amal Elzubair
Instituto Militar de Engenharia
https://orcid.org/0000-0002-8626-5178
Marcelo Henrique Prado da Silva
Instituto Militar de Engenharia
https://orcid.org/0000-0002-1182-5345

Abstract

Repair and replacement of damaged or lost tissue is a problem of utmost importance for contemporary medicine. Hydroxyapatite, Ca10(PO4)6(OH)2, (HA), is the bioceramic most similar to the inorganic phase of bone tissue, besides being bioactive. Hydroxyapatites with partial ionic substitutions and other bioactive bioceramics are adopted as synthetic bone grafts. These grafts can be produced in different forms, such as microspheres, porous scans, or granules. In this work, HA partially replaced with biogenic silica and sodium-potassium niobates (KNN) were synthesized and processed in the form of granules. The materials were calcined, pressed, sintered, later being ground and sieved. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS). The results showed the presence of micrometric and manometric pores in the HA samples, with higher porosity in the samples with higher percentage of silica.

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How to Cite
Vanzan, P. de F., Ribeiro, S. N. F., Elzubair, A., & Silva, M. H. P. da. (2025). Production and characterization of HA, HA/SiO2, and KNN biomaterial granules. Revista Militar De Ciência E Tecnologia, 40(1), 24–35. https://doi.org/10.22491/rmct.v40i1.9484.pt
Issue
Vol. 40 No. 1 (2023): Revista Militar de Ciência e Tecnologia
Section
Ciência dos Materiais

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Author Biographies

Pedro de Farias Vanzan, Instituto Militar de Engenharia

Pursuing a degree in materials engineering at Instituto Militar de Engenharia.

Suzana Noronha Ferreira Ribeiro, Instituto Militar de Engenharia

Suzana is currently a doctoral student at the Instituto Militar de Engenharia (IME), section of materials science (SE8) in the area of ​​ceramic materials and biomaterials. Graduated from the Federal University of Cariri (UFCA) in the course of materials engineering and master's degree from the Instituto Militar de Engenharia (IME) in the course of Materials Science. He has experience in materials and metallurgical engineering, traditional and advanced ceramics, biomaterials. He is interested in the following topics: Sodium niobates, sodium and potassium niobates, hydroxyapatite, silica, freshwater sponge, composites, masses, characterization of materials, clays and red ceramics.  

Amal Elzubair, Instituto Militar de Engenharia

Holds a degree in Physics and Matimatics from the University of Cartoon (1985), and a Master's degree in Nuclear Physics from the University of Khartoum (1990), a PhD in Physics from the IF/UFRJ (2000) and specialization in processing and characterization of polymers and rubber from the Institute of macromolecules IMA/UFRJ (2002). She was a researcher at IME, CBPF, IF/UFRJ, INT and at PEMM/COPPE. Has experience in Physics, with emphasis on Condensed Matter Physics, working mainly in the investigation of transport, thermal, magnetic properties, Mossbauer effect spectroscopy and structure of ceramic and intermetallic materials. Specialist in material characterization at macro, micro and nano scales by RX Diffraction, FTIR, NMR and transmission and scanning electron microscopy (SEM/EDS), confocal microscope and macro, micro and nanomechanical assays (nanoindentation-hardness and elastic modulus) and nanoribological (nanoscratch, adhesion, wear,). He has extensive knowledge in compression and extrusion processing and/or injection of fiber-reinforced polymer matrix and polymer composites. I worked with very high molecular weight polyethylene (UHMWPE), a biomaterial used for hip implants, investigating the effect of gamma radiation sterilization to evaluate the mechanical, static or dynamic behavior of this material, showing if there is degradation of the implant and its biocompatibility . She was a researcher in projects for the development of nanometric activated carbon membranes for use in hemodialysis and porous alumina nanoparticles by sol gel method for water desalination. In the protective coatings group at PEMM/UFRJ I worked on projects to study nanomaterials and their structural, morphological, nanomechanical and nanoribological properties. She currently works as a researcher in the materials engineering section of the IME working on projects in the area of ​​composites of ceramic materials reinforced with carbon nanotubes and graphene and ceramic biomaterials.  

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