Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite

In this study, ZrB2-HfB2 composite was produced by pressureless sintering method. MoSi2 B4C and SiC particles were used as reinforcement. ZrB2 powder was milled in planetary ball mill apparatus and then reinforcement particles were added to the milled powder. The composite powders were then CIPed an...

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Main Authors: M. Mashhadi, A. Abdollahi, Z. Nasiri
Format: Article
Language:fas
Published: Isfahan University of Technology 2015-03-01
Series:Journal of Advanced Materials in Engineering
Subjects:
Online Access:http://jame.iut.ac.ir/article-1-582-en.html
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author M. Mashhadi
A. Abdollahi
Z. Nasiri
author_facet M. Mashhadi
A. Abdollahi
Z. Nasiri
author_sort M. Mashhadi
collection DOAJ
description In this study, ZrB2-HfB2 composite was produced by pressureless sintering method. MoSi2 B4C and SiC particles were used as reinforcement. ZrB2 powder was milled in planetary ball mill apparatus and then reinforcement particles were added to the milled powder. The composite powders were then CIPed and sintered at 2100oC and 2150oC. Scanning electron microscopy (SEM) with an energy dispersive X-ray spectrometer (EDS), flexural test, and resonance frequency method were used to compare the added particle effects on mechanical properties and pressureless sintering behavior of ZrB2-HfB2 composite. The analysis showed that the ZrB2-HfB2-MoSi2-SiCnano composite displays the largest gain in flexural strength. Furthermore, increasing the sintering temperature leads to an increase in flexural strength of samples.
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spelling doaj.art-b0eaa36e2c314d409f66c7af7aea99c92022-12-21T22:22:21ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering2251-600X2423-57332015-03-013328597Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature CompositeM. Mashhadi0A. Abdollahi1Z. Nasiri2 In this study, ZrB2-HfB2 composite was produced by pressureless sintering method. MoSi2 B4C and SiC particles were used as reinforcement. ZrB2 powder was milled in planetary ball mill apparatus and then reinforcement particles were added to the milled powder. The composite powders were then CIPed and sintered at 2100oC and 2150oC. Scanning electron microscopy (SEM) with an energy dispersive X-ray spectrometer (EDS), flexural test, and resonance frequency method were used to compare the added particle effects on mechanical properties and pressureless sintering behavior of ZrB2-HfB2 composite. The analysis showed that the ZrB2-HfB2-MoSi2-SiCnano composite displays the largest gain in flexural strength. Furthermore, increasing the sintering temperature leads to an increase in flexural strength of samples.http://jame.iut.ac.ir/article-1-582-en.htmlzrb2-hfb2 compositeultra high temperature ceramicsflexural strengthpressureless sintering
spellingShingle M. Mashhadi
A. Abdollahi
Z. Nasiri
Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
Journal of Advanced Materials in Engineering
zrb2-hfb2 composite
ultra high temperature ceramics
flexural strength
pressureless sintering
title Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
title_full Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
title_fullStr Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
title_full_unstemmed Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
title_short Investigation of Molybdenum Disilicide, Boron Carbide and Silicon Carbide Particles on Flexural Strength and Pressureless Sintering Behavior of ZrB2-HfB2 Ultra High Temperature Composite
title_sort investigation of molybdenum disilicide boron carbide and silicon carbide particles on flexural strength and pressureless sintering behavior of zrb2 hfb2 ultra high temperature composite
topic zrb2-hfb2 composite
ultra high temperature ceramics
flexural strength
pressureless sintering
url http://jame.iut.ac.ir/article-1-582-en.html
work_keys_str_mv AT mmashhadi investigationofmolybdenumdisilicideboroncarbideandsiliconcarbideparticlesonflexuralstrengthandpressurelesssinteringbehaviorofzrb2hfb2ultrahightemperaturecomposite
AT aabdollahi investigationofmolybdenumdisilicideboroncarbideandsiliconcarbideparticlesonflexuralstrengthandpressurelesssinteringbehaviorofzrb2hfb2ultrahightemperaturecomposite
AT znasiri investigationofmolybdenumdisilicideboroncarbideandsiliconcarbideparticlesonflexuralstrengthandpressurelesssinteringbehaviorofzrb2hfb2ultrahightemperaturecomposite