Fabrication and application of co-continuous Al2O3/Al composite by reactive infiltration of molten Al into the preform of SiO2 with cordierite addition
Abstract
Interpenetration Al2O3/Al(Si) composites were fabricated by reactive infiltration of molten Al into the preforms with SiO2–4.6 mol.% cordierite at 1150 °C in air. The formation kinetics and microstructures of the composites were investigated. Experimental results show that the addition of cordierite in SiO2 is favorable for wetting of molten Al on the preform, leading to high growth rate of the composite (8.76 mm min –1). The growth rate of the composite was controlled by the infiltration of molten Al into the preform through the open pores and cracks formed during the preform fabrication or through microcracks created during the infiltration process. Since the addition of cordierite in SiO2 can lower the preform sintering temperature, one of its applications is used for ceramic – ceramic or ceramic – metal joints. A strong Al2O3–Al2O3 joint with a shear strength of 109 MPa was fabricated and investigated using the Al2O3/Al(Si) interlayer formed by this method.
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The financial support of this study is Shenzhen Science and Technology Research Grant No. 200322. The authors wish to thank Mr. L. Li and Y. B. Li for their help in the fabrication experiments.
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© 2004 Carl Hanser Verlag, München
Artikel in diesem Heft
- Frontmatter
- Editorial
- Editorial
- Werner-Köster-Preis
- den Werner-Köster-Preis 2003
- Festabend zum 85. Geburtstag der DGM
- Festabend zum 85. Geburtstag der DGM
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- Direct Strip Casting of Magnesium
- Thermo-mechanical analysis of cast/mould interaction in casting processes
- Aluminum–Lithium alloy development for thixoforming
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- Thermodynamic assessment of the Dy–Mg system
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- Fabrication and application of co-continuous Al2O3/Al composite by reactive infiltration of molten Al into the preform of SiO2 with cordierite addition
- Articles Basic
- Simulation of cellular-dendritic solidification structures of binary alloys in three-dimensional growth using a multiparticle diffusion-limited aggregation model
- Microstructure and age-hardening effects of aluminium alloys with additions of scandium and zirconium
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- Materials Week
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Artikel in diesem Heft
- Frontmatter
- Editorial
- Editorial
- Werner-Köster-Preis
- den Werner-Köster-Preis 2003
- Festabend zum 85. Geburtstag der DGM
- Festabend zum 85. Geburtstag der DGM
- Articles Applied
- NiAl – material for the application in gas turbines
- High-temperature creep behavior and hot-pressing consolidation of NiAl
- Direct Strip Casting of Magnesium
- Thermo-mechanical analysis of cast/mould interaction in casting processes
- Aluminum–Lithium alloy development for thixoforming
- On the influence of heavy warm reduction on the microstructure and mechanical properties of a medium-carbon ferritic –pearlitic steel
- Thermodynamic assessment of the Dy–Mg system
- Influence of pre-straining on mechanical properties of HSLA steel by using ball indentation technique
- Fabrication and application of co-continuous Al2O3/Al composite by reactive infiltration of molten Al into the preform of SiO2 with cordierite addition
- Articles Basic
- Simulation of cellular-dendritic solidification structures of binary alloys in three-dimensional growth using a multiparticle diffusion-limited aggregation model
- Microstructure and age-hardening effects of aluminium alloys with additions of scandium and zirconium
- Notifications / Mitteilungen
- Personal/Personelles
- Materials Week
- News/Aktuelles
- Books/Bücher
- Conferences / Konferenzen