Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties

Abstract Microwave assisted rapid sintering was carried out to fabricate aluminum-ZrB2 metal matrix composites containing 1 wt% cobalt and 10, 15 and 20 wt% ZrB2 as the reinforcements at temperatures of 600, 700 and 800°C. The results showed that the highest values of density and bending strength (9...

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Main Authors: Ehsan Ghasali, Rahim Yazdani-rad, Ali Rahbari, Touradj Ebadzadeh
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2016-05-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/pdf/mr/v19n4/1980-5373-mr-1980-5373-MR-2015-0799.pdf
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author Ehsan Ghasali
Rahim Yazdani-rad
Ali Rahbari
Touradj Ebadzadeh
author_facet Ehsan Ghasali
Rahim Yazdani-rad
Ali Rahbari
Touradj Ebadzadeh
author_sort Ehsan Ghasali
collection DOAJ
description Abstract Microwave assisted rapid sintering was carried out to fabricate aluminum-ZrB2 metal matrix composites containing 1 wt% cobalt and 10, 15 and 20 wt% ZrB2 as the reinforcements at temperatures of 600, 700 and 800°C. The results showed that the highest values of density and bending strength (97% of theoretical density and 240 MPa, respectively) were obtained in a composite containing 15 wt% ZrB2 and 1 wt% Co sintered at 600°C. Furthermore, the optimum values of compressive strength and hardness (350 MPa and 63 Vickers, respectively) were measured for a composite containing 20 wt% ZrB2 sintered at 600°C. At all sintering temperatures, XRD analysis revealed ZrB2 and aluminum as the only crystalline phases. Microstructure investigations demonstrated a homogeneous distribution of ZrB2 particles in the aluminum matrix.
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spelling doaj.art-30355c2973134fa8bff84559eda66c092022-12-21T19:23:42ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392016-05-0119476576910.1590/1980-5373-MR-2015-0799Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical PropertiesEhsan GhasaliRahim Yazdani-radAli RahbariTouradj EbadzadehAbstract Microwave assisted rapid sintering was carried out to fabricate aluminum-ZrB2 metal matrix composites containing 1 wt% cobalt and 10, 15 and 20 wt% ZrB2 as the reinforcements at temperatures of 600, 700 and 800°C. The results showed that the highest values of density and bending strength (97% of theoretical density and 240 MPa, respectively) were obtained in a composite containing 15 wt% ZrB2 and 1 wt% Co sintered at 600°C. Furthermore, the optimum values of compressive strength and hardness (350 MPa and 63 Vickers, respectively) were measured for a composite containing 20 wt% ZrB2 sintered at 600°C. At all sintering temperatures, XRD analysis revealed ZrB2 and aluminum as the only crystalline phases. Microstructure investigations demonstrated a homogeneous distribution of ZrB2 particles in the aluminum matrix.http://www.scielo.br/pdf/mr/v19n4/1980-5373-mr-1980-5373-MR-2015-0799.pdfAluminumZirconium diborideMicrowave sinteringMetal matrix composites
spellingShingle Ehsan Ghasali
Rahim Yazdani-rad
Ali Rahbari
Touradj Ebadzadeh
Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
Materials Research
Aluminum
Zirconium diboride
Microwave sintering
Metal matrix composites
title Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
title_full Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
title_fullStr Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
title_full_unstemmed Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
title_short Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties
title_sort microwave sintering of aluminum zrb2 composite focusing on microstructure and mechanical properties
topic Aluminum
Zirconium diboride
Microwave sintering
Metal matrix composites
url http://www.scielo.br/pdf/mr/v19n4/1980-5373-mr-1980-5373-MR-2015-0799.pdf
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AT rahimyazdanirad microwavesinteringofaluminumzrb2compositefocusingonmicrostructureandmechanicalproperties
AT alirahbari microwavesinteringofaluminumzrb2compositefocusingonmicrostructureandmechanicalproperties
AT touradjebadzadeh microwavesinteringofaluminumzrb2compositefocusingonmicrostructureandmechanicalproperties