POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V

Silicon carbide (SiC) exhibits many functional properties that are relevant to applications in electronics, aerospace, defense and automotive industries. However, the successful translation of these properties into final applications lies in the net-shaping of ceramics into fully dense microstruct...

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Main Authors: Valmikanathan Onbattuvelli, Sachin Laddha, Seong-Jin Park, Jupiter Palagi de Souza, Sundar Vedanarayan Atre
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia, Materiais e Mineração 2012-06-01
Series:Tecnologia em Metalurgia, Materiais e Mineração
Subjects:
Online Access:http://www.tecnologiammm.com.br/files/v9n2/v9n2a07.pdf
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author Valmikanathan Onbattuvelli
Sachin Laddha
Seong-Jin Park
Jupiter Palagi de Souza
Sundar Vedanarayan Atre
author_facet Valmikanathan Onbattuvelli
Sachin Laddha
Seong-Jin Park
Jupiter Palagi de Souza
Sundar Vedanarayan Atre
author_sort Valmikanathan Onbattuvelli
collection DOAJ
description Silicon carbide (SiC) exhibits many functional properties that are relevant to applications in electronics, aerospace, defense and automotive industries. However, the successful translation of these properties into final applications lies in the net-shaping of ceramics into fully dense microstructures. Increasing the packing density of the starting powders is one effective route to achieve high sintered density and dimensional precision. The present paper presents an in-depth study on the effects of nanoparticle addition on the powder injection molding process (PIM) of SiC powder-polymer mixtures. In particular, bimodal mixtures of nanoscale and sub-micrometer particles are found to have significantly increased powder packing characteristics (solids loading) in the powder-polymer mixtures. The influence of nanoparticle addition on the multi-step PIM process is examined. The above results provide new perspectives which could impact a wide range of materials, powder processing techniques and applications.
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spelling doaj.art-0fd077cac615456d829e24c4cfd0e7f12023-09-02T09:21:03ZengAssociação Brasileira de Metalurgia, Materiais e MineraçãoTecnologia em Metalurgia, Materiais e Mineração2176-15152176-15232012-06-0192123131http://dx.doi.org/10.4322/tmm.2012.019POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT VValmikanathan Onbattuvelli0Sachin Laddha 1Seong-Jin Park 2Jupiter Palagi de Souza3Sundar Vedanarayan Atre4PhD Student, School of Mechanical, Industrial, and Manufacturing Engineering – MIME, Oregon State University Research Engineer, Materials Division, Pacific Northwest National Laboratory – PNNLMechanical Engineering, Associate Professor, Pohang University of Science & Technology – POSTECH, Pohang Materials, Professor, Universidade Federal Rio Grande do Sul – UFRGS Associate Professor, Oregon Nanoscience & Microtechnologies Institute – ONAMI, School of Mechanical, Industrial, and Manufacturing Engineering – MIMESilicon carbide (SiC) exhibits many functional properties that are relevant to applications in electronics, aerospace, defense and automotive industries. However, the successful translation of these properties into final applications lies in the net-shaping of ceramics into fully dense microstructures. Increasing the packing density of the starting powders is one effective route to achieve high sintered density and dimensional precision. The present paper presents an in-depth study on the effects of nanoparticle addition on the powder injection molding process (PIM) of SiC powder-polymer mixtures. In particular, bimodal mixtures of nanoscale and sub-micrometer particles are found to have significantly increased powder packing characteristics (solids loading) in the powder-polymer mixtures. The influence of nanoparticle addition on the multi-step PIM process is examined. The above results provide new perspectives which could impact a wide range of materials, powder processing techniques and applications.http://www.tecnologiammm.com.br/files/v9n2/v9n2a07.pdfPowder injection molding; Nanoparticles; Thermal management; SiC.
spellingShingle Valmikanathan Onbattuvelli
Sachin Laddha
Seong-Jin Park
Jupiter Palagi de Souza
Sundar Vedanarayan Atre
POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
Tecnologia em Metalurgia, Materiais e Mineração
Powder injection molding; Nanoparticles; Thermal management; SiC.
title POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
title_full POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
title_fullStr POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
title_full_unstemmed POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
title_short POWDER INJECTION MOLDING OF SIC FOR THERMAL MANAGEMENT V
title_sort powder injection molding of sic for thermal management v
topic Powder injection molding; Nanoparticles; Thermal management; SiC.
url http://www.tecnologiammm.com.br/files/v9n2/v9n2a07.pdf
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AT sachinladdha powderinjectionmoldingofsicforthermalmanagementv
AT seongjinpark powderinjectionmoldingofsicforthermalmanagementv
AT jupiterpalagidesouza powderinjectionmoldingofsicforthermalmanagementv
AT sundarvedanarayanatre powderinjectionmoldingofsicforthermalmanagementv