TU Darmstadt / ULB / TUbiblio

SiC/Si3N4 nano/micro-composite - processing, RT and HT mechanical properties

Sajgalik, Pavol ; Hnatko, M. ; Lofaj, F. ; Hvizdos, P. ; Dusza, J. ; Warbichler, P. ; Hofer, F. ; Riedel, Ralf ; Lecomte, E. :
SiC/Si3N4 nano/micro-composite - processing, RT and HT mechanical properties.
In: Journal of the European Ceramic Society, 20 (4) pp. 453-462.
[Artikel], (2000)

Kurzbeschreibung (Abstract)

Two SiC/Si3N4 nano/micro composites were prepared from a starting mixture of crystalline α-Si3N4, amorphous SiNC, Y2O3 and/or Al2O3. The composite material for room temperature (RT) application has high strength of 1200 MPa, Weibull modulus of 19 and moderate fracture toughness of 7 MPa m1/2. The composite for high temperature (HT) application, without Al2O3 has RT strength of 710 MPa and is able to keep 60% of its RT strength up to 1300°C. The creep resistance of composite material is approx. 1 order higher compared to relative monolith up to 1400°C.

Typ des Eintrags: Artikel
Erschienen: 2000
Autor(en): Sajgalik, Pavol ; Hnatko, M. ; Lofaj, F. ; Hvizdos, P. ; Dusza, J. ; Warbichler, P. ; Hofer, F. ; Riedel, Ralf ; Lecomte, E.
Titel: SiC/Si3N4 nano/micro-composite - processing, RT and HT mechanical properties
Sprache: Englisch
Kurzbeschreibung (Abstract):

Two SiC/Si3N4 nano/micro composites were prepared from a starting mixture of crystalline α-Si3N4, amorphous SiNC, Y2O3 and/or Al2O3. The composite material for room temperature (RT) application has high strength of 1200 MPa, Weibull modulus of 19 and moderate fracture toughness of 7 MPa m1/2. The composite for high temperature (HT) application, without Al2O3 has RT strength of 710 MPa and is able to keep 60% of its RT strength up to 1300°C. The creep resistance of composite material is approx. 1 order higher compared to relative monolith up to 1400°C.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of the European Ceramic Society
Band: 20
(Heft-)Nummer: 4
Verlag: Elsevier
Freie Schlagworte: Creep, Mechanical properties, Composites, SiC, Si3N4
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Disperse Feststoffe, Dispersive Solids
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 19 Nov 2008 15:54
Sponsoren: Present work was partly supported by Slovak Grant Agency VEGA, project 2/5118/99 and Slovak–Germany R&D Program, project X292.11., P. Šajgalı́k acknowledges also the Alexander von Humboldt Foundation for financial support during his stay at the University of Karlsruhe where a part of the mechanical properties were measured., P. Hvizdoš acknowledges the financial support of the British Council Academic Link “Silicon Nitride for High Temperature Structural Applications”., R. Riedel and E. Lecomte acknowledge the financial support of the European Community.
Export:

Optionen (nur für Redakteure)

Eintrag anzeigen Eintrag anzeigen