Brazing of metals to zirconia mechanically metallized with titanium

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 metall...

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Principais autores: Pimenta, Jean Senise, Buschinelli, Augusto José de Almeida, Nascimento, Rubens Maribondo do, Martinelli, Antônio Eduardo, Remmel, Josef
Formato: article
Idioma:English
Publicado em: Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
Assuntos:
Mechanical metallization
Brazing
Ceramic-metal joining
Endereço do item:https://repositorio.ufrn.br/handle/123456789/31981
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spelling ri-123456789-319812021-03-28T08:53:27Z Brazing of metals to zirconia mechanically metallized with titanium Pimenta, Jean Senise Buschinelli, Augusto José de Almeida Nascimento, Rubens Maribondo do Martinelli, Antônio Eduardo Remmel, Josef Mechanical metallization Brazing Ceramic-metal joining 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 2021-03-23T19:45:27Z 2021-03-23T19:45:27Z 2010 article 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 1806-3691 1678-5878 https://repositorio.ufrn.br/handle/123456789/31981 10.1590/S1678-58782010000400009 en Attribution-NonCommercial 3.0 Brazil http://creativecommons.org/licenses/by-nc/3.0/br/ application/pdf Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
institution Repositório Institucional
collection RI - UFRN
language English
topic Mechanical metallization
Brazing
Ceramic-metal joining
spellingShingle Mechanical metallization
Brazing
Ceramic-metal joining
Pimenta, Jean Senise
Buschinelli, Augusto José de Almeida
Nascimento, Rubens Maribondo do
Martinelli, Antônio Eduardo
Remmel, Josef
Brazing of metals to zirconia mechanically metallized with titanium
description 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
format article
author Pimenta, Jean Senise
Buschinelli, Augusto José de Almeida
Nascimento, Rubens Maribondo do
Martinelli, Antônio Eduardo
Remmel, Josef
author_facet Pimenta, Jean Senise
Buschinelli, Augusto José de Almeida
Nascimento, Rubens Maribondo do
Martinelli, Antônio Eduardo
Remmel, Josef
author_sort Pimenta, Jean Senise
title Brazing of metals to zirconia mechanically metallized with titanium
title_short Brazing of metals to zirconia mechanically metallized with titanium
title_full Brazing of metals to zirconia mechanically metallized with titanium
title_fullStr Brazing of metals to zirconia mechanically metallized with titanium
title_full_unstemmed Brazing of metals to zirconia mechanically metallized with titanium
title_sort brazing of metals to zirconia mechanically metallized with titanium
publisher Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/31981
work_keys_str_mv AT pimentajeansenise brazingofmetalstozirconiamechanicallymetallizedwithtitanium
AT buschinelliaugustojosedealmeida brazingofmetalstozirconiamechanicallymetallizedwithtitanium
AT nascimentorubensmaribondodo brazingofmetalstozirconiamechanicallymetallizedwithtitanium
AT martinelliantonioeduardo brazingofmetalstozirconiamechanicallymetallizedwithtitanium
AT remmeljosef brazingofmetalstozirconiamechanicallymetallizedwithtitanium
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