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https://repositorio.ufrn.br/handle/123456789/31981| Título: | Brazing of metals to zirconia mechanically metallized with titanium |
| Autor(es): | Pimenta, Jean Senise Buschinelli, Augusto José de Almeida Nascimento, Rubens Maribondo do Martinelli, Antônio Eduardo Remmel, Josef |
| Palavras-chave: | Mechanical metallization;Brazing;Ceramic-metal joining |
| Data do documento: | 2010 |
| Editor: | Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM |
| Referência: | PIMENTA, Jean Senise ; BUSCHINELLI, Augusto J A ; NASCIMENTO, Rubens M do ; MARTINELLI, Antônio Eduardo ; REMMEL, Josef . Brazing of metals to zirconia mechanically metallized with titanium. Journal of the Brazilian Society of Mechanical Sciences and Engineering (Impresso), v. 32, p. 468-474, 2010. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782010000400009&lng=en&nrm=iso&tlng=en Acesso em: 16 nov. 2020. https://doi.org/10.1590/S1678-58782010000400009 |
| Resumo: | The mechanical metallization is a successful technique at laboratory scale and specially applied to oxide ceramics. Indirect brazing process of zirconia to metals is achieved using active-metal-free filler alloys on previously metallized ceramic. Stabilized zirconia ceramics were mechanically metallized with Ti and wetting conditions evaluated using commercial Ag-Cu and Au-Ni fillers with its respective thermal cycles. Better results were selected for brazing ceramic to metals in a high-vacuum furnace. Reliable vacuum tight ceramic/metal joints were obtained specially using the Ag-28Cu filler for results below 10-8 mbar.l.s-1; samples at the joint cross-section were examined by microstructural analysis techniques and energy dispersive X-ray analysis. Microhardness profiles were made across the joints interface where zirconia undergone a typical darkening effect during brazing. Microstructure at the braze region revealed a dark reaction layer and precipitation zone closely to metallized ceramic surface for zirconia/Ti-6Al4V joints due to chemical interactions between the individual components |
| URI: | https://repositorio.ufrn.br/handle/123456789/31981 |
| ISSN: | 1806-3691 1678-5878 |
| Aparece nas coleções: | CT - DEMAT - Artigos publicados em periódicos |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| BrazingMetalsZirconia_MARTINELLI_2010.pdf | 4,78 MB | Adobe PDF |  Visualizar/Abrir |
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