Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts

In this work infiltration behavior of mechanical alloyed 75 wt% Cu – 25 wt% WC powders into porous WC compacts were studied. Owing to their ductile nature, initial Cu powders were directly added to mechanical alloying batch. On the other hand initial WC powders were high energy milled prior to mecha...

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Main Authors: Şelte A., Özkal B.
Format: Article
Language:English
Published: Polish Academy of Sciences 2015-06-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0272/amm-2015-0272.xml?format=INT
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author Şelte A.
Özkal B.
author_facet Şelte A.
Özkal B.
author_sort Şelte A.
collection DOAJ
description In this work infiltration behavior of mechanical alloyed 75 wt% Cu – 25 wt% WC powders into porous WC compacts were studied. Owing to their ductile nature, initial Cu powders were directly added to mechanical alloying batch. On the other hand initial WC powders were high energy milled prior to mechanical alloying. Contact infiltration method was selected for densification and compacts prepared from processed powders were infiltrated into porous WC bodies. After infiltration, samples were characterized via X-Ray diffraction studies and microstructural evaluation of the samples was carried out via scanning electron microscopy observations. Based on the lack of solubility between WC and Cu it was possible to keep fine WC particles in Cu melt since solution reprecipitation controlled densification is hindered. Also microstructural characterizations via scanning electron microscopy confirmed that the transport of fine WC fraction from infiltrant to porous WC skeleton can be carried out via Cu melt flow during infiltration.
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spelling doaj.art-5d8d0cd069c841919b7a7ba30b5c6b352022-12-21T19:40:34ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092015-06-016021565156810.1515/amm-2015-0272amm-2015-0272Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC CompactsŞelte A.0Özkal B.1 ISTANBUL TECHNICAL UNIVERSITY, 34469 MASLAK, ISTANBUL, TURKEY ISTANBUL TECHNICAL UNIVERSITY, 34469 MASLAK, ISTANBUL, TURKEYIn this work infiltration behavior of mechanical alloyed 75 wt% Cu – 25 wt% WC powders into porous WC compacts were studied. Owing to their ductile nature, initial Cu powders were directly added to mechanical alloying batch. On the other hand initial WC powders were high energy milled prior to mechanical alloying. Contact infiltration method was selected for densification and compacts prepared from processed powders were infiltrated into porous WC bodies. After infiltration, samples were characterized via X-Ray diffraction studies and microstructural evaluation of the samples was carried out via scanning electron microscopy observations. Based on the lack of solubility between WC and Cu it was possible to keep fine WC particles in Cu melt since solution reprecipitation controlled densification is hindered. Also microstructural characterizations via scanning electron microscopy confirmed that the transport of fine WC fraction from infiltrant to porous WC skeleton can be carried out via Cu melt flow during infiltration.http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0272/amm-2015-0272.xml?format=INTelectrical contactsWC-Cu systemmechanical alloyingcontact infiltration
spellingShingle Şelte A.
Özkal B.
Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
Archives of Metallurgy and Materials
electrical contacts
WC-Cu system
mechanical alloying
contact infiltration
title Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
title_full Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
title_fullStr Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
title_full_unstemmed Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
title_short Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts
title_sort infiltration behavior of mechanical alloyed 75 wt cu 25 wt wc powders into porous wc compacts
topic electrical contacts
WC-Cu system
mechanical alloying
contact infiltration
url http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0272/amm-2015-0272.xml?format=INT
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AT ozkalb infiltrationbehaviorofmechanicalalloyed75wtcu25wtwcpowdersintoporouswccompacts