Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1263-1277 |
| Seitenumfang | 15 |
| Fachzeitschrift | Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties |
| Jahrgang | 79 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - Juni 1999 |
Abstract
The characteristics of the interlayers in metal matrix composites strongly influence the materials properties. We have investigated the formation of such layers in carbon-fibre reinforced Mg-Al alloys, produced via a gas-pressure meltinfiltration process. Results of high-voltage electron microscopy, high-resolution electron microscopy, selected area diffraction and electron energy loss spectroscopy with analysis of near-edge fine structures (ELNES) of the relevant ionization edges (Mg-L23Al-L23C-K, Mg-K and Ald-K) revealed that ternary carbides of approximate composition Al2MgC2formed at the fibre/matrix interfaces. Analyses of ELNES point to a close relationship in terms of crystal chemistry between the ternary carbide Al2MgC2and the binary carbidel4C3For Al2MgC2a structure is proposed, with metal atoms in a close-packed arrangement filled with carbon atoms in octahedral and trigonal-bipyramidal interstices.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Physik und Astronomie (insg.)
- Physik und Astronomie (sonstige)
- Werkstoffwissenschaften (insg.)
- Metalle und Legierungen
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in: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Jahrgang 79, Nr. 6, 06.1999, S. 1263-1277.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Structure and composition of ternary carbides in carbon fibre reinforced Mg-Al alloys
AU - Feldhoff, Armin
AU - Pippel, Eckhard
AU - Woltersdorf, Jörg
PY - 1999/6
Y1 - 1999/6
N2 - The characteristics of the interlayers in metal matrix composites strongly influence the materials properties. We have investigated the formation of such layers in carbon-fibre reinforced Mg-Al alloys, produced via a gas-pressure meltinfiltration process. Results of high-voltage electron microscopy, high-resolution electron microscopy, selected area diffraction and electron energy loss spectroscopy with analysis of near-edge fine structures (ELNES) of the relevant ionization edges (Mg-L23Al-L23C-K, Mg-K and Ald-K) revealed that ternary carbides of approximate composition Al2MgC2formed at the fibre/matrix interfaces. Analyses of ELNES point to a close relationship in terms of crystal chemistry between the ternary carbide Al2MgC2and the binary carbidel4C3For Al2MgC2a structure is proposed, with metal atoms in a close-packed arrangement filled with carbon atoms in octahedral and trigonal-bipyramidal interstices.
AB - The characteristics of the interlayers in metal matrix composites strongly influence the materials properties. We have investigated the formation of such layers in carbon-fibre reinforced Mg-Al alloys, produced via a gas-pressure meltinfiltration process. Results of high-voltage electron microscopy, high-resolution electron microscopy, selected area diffraction and electron energy loss spectroscopy with analysis of near-edge fine structures (ELNES) of the relevant ionization edges (Mg-L23Al-L23C-K, Mg-K and Ald-K) revealed that ternary carbides of approximate composition Al2MgC2formed at the fibre/matrix interfaces. Analyses of ELNES point to a close relationship in terms of crystal chemistry between the ternary carbide Al2MgC2and the binary carbidel4C3For Al2MgC2a structure is proposed, with metal atoms in a close-packed arrangement filled with carbon atoms in octahedral and trigonal-bipyramidal interstices.
UR - http://www.scopus.com/inward/record.url?scp=0004737048&partnerID=8YFLogxK
U2 - 10.1080/01418619908210360
DO - 10.1080/01418619908210360
M3 - Article
AN - SCOPUS:0004737048
VL - 79
SP - 1263
EP - 1277
JO - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
JF - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
SN - 0141-8610
IS - 6
ER -