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Development of Si3N...
Development of Si3N4/ Al composite by pressureless melt infiltration
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- Akhtar, Farid (författare)
- Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing
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- Guo, Shiju (författare)
- Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing
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- Guo, Shi-ju (författare)
- Institute of Powder Metallurgy, University of Science & Technology, Beijing
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(creator_code:org_t)
- Shrewsbury : European powder metallurgy association, 2006
- 2006
- Engelska.
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Ingår i: European PM 2005 conference proceedings. - Shrewsbury : European powder metallurgy association. - 9781899072187 ; 16:3, s. 629-632
- Relaterad länk:
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Pressureless infiltration process to synthesize Si3N4/ Al composite was investigated. Al- 2%Mg alloy was infiltrated into the Si3N4 and Si3N4 containing 10% Al2O3 preforms in the atmosphere of nitrogen. It is possible to infiltrate Al- 2%Mg alloy in Si3N4 and Si3N4 containing 10% Al2O3 preforms. The growth of the dense composite of useful thickness was facilitated by the presence of magnesium powder at the interface and by flowing nitrogen. During infiltration Si3N4 reacted with Aluminium to form Si and AlN. The growth of composite was found to proceed in two ways, depending on the Al2O3 content in the initial preform. First, preform without Al2O3 content gave rise to AlN, Al3.27Si0.47 and Al type phases after infiltration. Second, perform with 10% Al2O3 content gave rise to AlN-Al2O3 solid solution phase (AlON), MgAl2O4, Al and Si type phases. AlON phase was only present in composite, containing 10% Al2O3 in the Si3N4 preforms before infiltration.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Materialteknik
- Engineering Materials
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- kon (ämneskategori)
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