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Low Energy Contrast of Metal Matrix Composite in SEM
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SYSNO ASEP 0205643 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Low Energy Contrast of Metal Matrix Composite in SEM Author(s) Frank, Luděk (UPT-D) RID, SAI, ORCID
Matsuda, K. (JP)
Hrnčiřík, Petr (UPT-D)
Müllerová, Ilona (UPT-D) RID, SAI, ORCIDSource Title Microscopy and Microanalysis. - : Cambridge University Press - ISSN 1431-9276
Roč. 9, Sup. 3 (2003), s. 328 - 329Number of pages 2 s. Action MC 2003 Event date 07.09.2003-12.09.2003 VEvent location Dresden Country DE - Germany Event type EUR Language eng - English Country US - United States Keywords low energy contrasts ; scanning electron microscope ; aluminium alloys Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects IAA1065304 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z2065902 - UPT-D Annotation Ceramic/Al alloys composite materials, as an important example of the metal matrix composites (MMC), are investigated because of intended improvement to mechanical properties of the age-hardenable aluminium alloys. Especially Al2O3 has its history as regards the MMC applications. Owing to its lower weight, higher melting point and larger Young modulus in comparison with Al alloys, it is expected to enhance the thermal resistivity and the strength of the composite. One-dimensional MMC with long fibres of alumina, although really strong along the texture direction, were found difficult to machine and not suitable for extruding, bending, etc. The new approach of 3D MMC faces problems with homogeneity of the particle distribution. The technology consisting in preparation of a precursor of ceramic fibres or particles, which is then poured by the molten metal, leads to enhanced contents (20 to 30 volume) of particles larger than 1 micro m and an inhomogeneous particle distribution. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2004
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