Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders
Si3N4–TiNcomposites were successfully fabricated via planetary ball milling of 70 mass% Si3N4 and 30 mass% Tipowders, followed by sparkplasmasintering (SPS) at 1250–1350 °C. The sintering mechanism for SPS was a hybrid of dissolution–reprecipitation and viscous flow. The electrical resistivity decre...
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Elsevier B.V.
2010
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author | Ahmad, Norhayati Sueyoshi, Hidekazu |
author_facet | Ahmad, Norhayati Sueyoshi, Hidekazu |
author_sort | Ahmad, Norhayati |
collection | ePrints |
description | Si3N4–TiNcomposites were successfully fabricated via planetary ball milling of 70 mass% Si3N4 and 30 mass% Tipowders, followed by sparkplasmasintering (SPS) at 1250–1350 °C. The sintering mechanism for SPS was a hybrid of dissolution–reprecipitation and viscous flow. The electrical resistivity decreased with increasing sintering temperature up to a minimum at 1250 °C and then increased with the increasing sintering temperature. The composites prepared by SPS at 1250–1350 °C could be easily machined by electrical discharge machining. Composite prepared by SPS at 1300 °C showed a high hardness (17.78 GPa) and a good machinability. |
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format | Article |
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institution | Universiti Teknologi Malaysia - ePrints |
last_indexed | 2024-03-05T18:40:18Z |
publishDate | 2010 |
publisher | Elsevier B.V. |
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spelling | utm.eprints-265922018-10-31T12:30:46Z http://eprints.utm.my/26592/ Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders Ahmad, Norhayati Sueyoshi, Hidekazu TJ Mechanical engineering and machinery Si3N4–TiNcomposites were successfully fabricated via planetary ball milling of 70 mass% Si3N4 and 30 mass% Tipowders, followed by sparkplasmasintering (SPS) at 1250–1350 °C. The sintering mechanism for SPS was a hybrid of dissolution–reprecipitation and viscous flow. The electrical resistivity decreased with increasing sintering temperature up to a minimum at 1250 °C and then increased with the increasing sintering temperature. The composites prepared by SPS at 1250–1350 °C could be easily machined by electrical discharge machining. Composite prepared by SPS at 1300 °C showed a high hardness (17.78 GPa) and a good machinability. Elsevier B.V. 2010 Article PeerReviewed Ahmad, Norhayati and Sueyoshi, Hidekazu (2010) Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders. Ceramics International, 36 (2). 491 -496. ISSN 0272-8842 http://dx.doi.org/10.1016/j.ceramint.2009.09.029 DOI:10.1016/j.ceramint.2009.09.029 |
spellingShingle | TJ Mechanical engineering and machinery Ahmad, Norhayati Sueyoshi, Hidekazu Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title | Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title_full | Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title_fullStr | Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title_full_unstemmed | Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title_short | Properties of Si3N4-TiN composites fabricated by spark plasma sintering by using a mixture of Si3N4 and Ti powders |
title_sort | properties of si3n4 tin composites fabricated by spark plasma sintering by using a mixture of si3n4 and ti powders |
topic | TJ Mechanical engineering and machinery |
work_keys_str_mv | AT ahmadnorhayati propertiesofsi3n4tincompositesfabricatedbysparkplasmasinteringbyusingamixtureofsi3n4andtipowders AT sueyoshihidekazu propertiesofsi3n4tincompositesfabricatedbysparkplasmasinteringbyusingamixtureofsi3n4andtipowders |