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Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al2O3 compound reinforced with Al or Ag particles
- Source :
- SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, CIC Digital (CICBA), Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, instacron:CICBA
- Publication Year :
- 2019
- Publisher :
- Elsevier Science, 2019.
-
Abstract
- Ceramic-metal (CaO·Al2O3–Al and CaO·Al2O3–Ag) compounds were prepared by mechanical milling and consolidated through an in-situ sintering process. The aim of this work is to study the effects of the Al and Ag particles to ceramic-base compound, primarily in the microstructure, and its mechanical and antimicrobial properties. Chemical systems with a 1:1M ratio between CaCO3 and Al2O3 powder were formed, with the addition of 10 wt% Al or 10 wt% Ag, respectively. The compound material that consolidated were microstructurally characterized through X-ray diffraction, scanning electron microscopy, optic microscopy, and X-ray computed tomography. In addition, the hardness, the fracture toughness, the transversal elastic modulus, and the antimicrobial property were evaluated. The results of X-ray diffraction identified the formation of the calcium aluminate phases, such as CaO·6Al2O3 (hibonite:CA6), CaO·2Al2O3 (grossite:CA2), and CaO·Al2O3 (krotite:CA); as well as Al and Ag were identified in its respective system. In addition, the mechanical properties show changes compared to the reference material that was synthesized under the same conditions and, finally, these materials also have an antimicrobial effect, against the Staphylococcus bacterium that is common in the oral cavity, when studied in synthetic saliva.<br />pag. 385-395<br />Centro de Investigación y Desarrollo en Tecnología de Pinturas
- Subjects :
- Materials science
Scanning electron microscope
Aluminate
Biomedical Engineering
CALCIUM ALUMINATE-METAL
Snail shell powder
Sintering
Mechanical properties
02 engineering and technology
INGENIERÍAS Y TECNOLOGÍAS
engineering.material
SOLID ESTATE REACTION
Biomaterials
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
Fracture toughness
Ingeniería de los Materiales
Elastic modulus
SNAIL SHELL POWDER
Antimicrobial analysis
Calcium aluminate-metal
Ciencias Químicas
030206 dentistry
021001 nanoscience & nanotechnology
Microstructure
Cerámicos
ANTIMICROBIAL ANALYSIS
Ingeniería Química
Grossite
chemistry
Chemical engineering
Metallic particles
Mechanics of Materials
engineering
Solid state reactions
Hibonite
METALLIC PARTICLES
0210 nano-technology
MECHANICAL PROPERTIES
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, CIC Digital (CICBA), Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, instacron:CICBA
- Accession number :
- edsair.doi.dedup.....24f49642cca29aba859fa523be839ebf