Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles

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...

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Autores principales: Gómez de Saravia, Sandra Gabriela, Rastelli, Silvia Elena, Ortega Avilés, Mayahued, González Morán, Carlos, Rocha Rangel, Enrique, Miranda Hernández, José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83431
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id I19-R120-10915-83431
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Calcium aluminate-metal
Metallic particles
Snail shell powder
Solid state reactions
Mechanical properties
Antimicrobial analysis
spellingShingle Ingeniería Química
Calcium aluminate-metal
Metallic particles
Snail shell powder
Solid state reactions
Mechanical properties
Antimicrobial analysis
Gómez de Saravia, Sandra Gabriela
Rastelli, Silvia Elena
Ortega Avilés, Mayahued
González Morán, Carlos
Rocha Rangel, Enrique
Miranda Hernández, José
Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
topic_facet Ingeniería Química
Calcium aluminate-metal
Metallic particles
Snail shell powder
Solid state reactions
Mechanical properties
Antimicrobial analysis
description 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.
format Articulo
Articulo
author Gómez de Saravia, Sandra Gabriela
Rastelli, Silvia Elena
Ortega Avilés, Mayahued
González Morán, Carlos
Rocha Rangel, Enrique
Miranda Hernández, José
author_facet Gómez de Saravia, Sandra Gabriela
Rastelli, Silvia Elena
Ortega Avilés, Mayahued
González Morán, Carlos
Rocha Rangel, Enrique
Miranda Hernández, José
author_sort Gómez de Saravia, Sandra Gabriela
title Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
title_short Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
title_full Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
title_fullStr Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
title_full_unstemmed Physical, mechanical properties and antimicrobial analysis of a novel CaO·Al<SUB>2</SUB>O<SUB>3</SUB> compound reinforced with Al or Ag particles
title_sort physical, mechanical properties and antimicrobial analysis of a novel cao·al<sub>2</sub>o<sub>3</sub> compound reinforced with al or ag particles
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/83431
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