Densification and Mechanical Properties of sintered Al2O3-Y3Al5O12 ceramic composite

Autores

  • Claudinei dos Santos Centro Universitário de Volta Redonda - UniFOA UERJ - Universidade do Estado do Rio de Janeiro
  • Flavio Jose Paneto Centro Universitário de Volta Redonda - UniFOA
  • Joaquim Lopes Pereira Centro Universitário de Volta Redonda - UniFOA
  • Jean de Lima Oliveira Centro Universitário de Volta Redonda - UniFOA
  • Edson de Jesus Filho Centro Universitário de Volta Redonda - UniFOA
  • Leandro Anselmo da Silva Centro Universitário de Volta Redonda - UniFOA
  • Eduardo de Sousa Lima IME - Instituto Militar de Engenharia
  • Ricardo de Freitas Cabral Centro Universitário de Volta Redonda - UniFOA

DOI:

https://doi.org/10.47385/cadunifoa.v1.n1.234

Palavras-chave:

Al2O3-YAG composites, pressing, sintering, hardness

Resumo

In this work, Al2O3-Y3Al5O12 ceramic composites were developed with different proportions of Al2O3-Y2O3, which were mixed and compacted at different pressures of 40MPa to 100MPa, being consequently sintered at 160°C-2h. The sintered samples were characterized by X-ray diffraction presenting a-Al2O3 and Y3Al5O12 as crystalline phases. Samples with relative densities ranging from 78 to 80% and 87 to 91% were obtained depending on the composition and the compaction pressure used.  The hardness values obtained were of 1010 to 1080HV and 370-470HV, for mixes Al2O3-Y2O3 having the composition with levels of 20 and 36.5wt.%, respectively.

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Referências

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Publicado

10-06-2014

Como Citar

DOS SANTOS, C.; PANETO, F. J.; PEREIRA, J. L.; OLIVEIRA, J. de L.; FILHO, E. de J.; DA SILVA, L. A.; LIMA, E. de S.; CABRAL, R. de F. Densification and Mechanical Properties of sintered Al2O3-Y3Al5O12 ceramic composite. Cadernos UniFOA, Volta Redonda, v. 1, n. 1, p. 55–60, 2014. DOI: 10.47385/cadunifoa.v1.n1.234. Disponível em: https://revistas.unifoa.edu.br/cadernos/article/view/234. Acesso em: 8 dez. 2022.

Edição

Seção

Especial Mestrado em Materiais

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