Influence of calendering on the properties of paper-derived alumina ceramics

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Schlordt T, Dermeik B, Beil V, Freihart M, Hofenauer A, Travitzky N, Greil P
Zeitschrift: Ceramics International
Verlag: Elsevier
Jahr der Veröffentlichung: 2013
Band: 40
Heftnummer: 3
Seitenbereich: 4917 – 4926
ISSN: 0272-8842
Sprache: Englisch


Abstract


The effect of calendering of alumina loaded preceramic papers in a hard nip laboratory calender at various temperatures, line loads and times of nip passes on their green and sintered properties was investigated. The main objective was to achieve a maximum densification, which resulted in a maximum reduction of thickness of 45%, a green density of 80.5% of the theoretical density and a sintered density of 81% of the theoretical density. The ring-on-ring flexural strength of sintered specimen could be increased from 71±11 MPa to 138±33 MPa. The surface roughness of green samples could be diminished to a value for Ra of below 2 µm compared to an Ra of 13.2 µm for an uncalendered paper, whereas the Ra value of the sintered samples was much higher due to the burn-off of the cellulose fibers. Preceramic papers manufactured by the dynamic hand-sheet-forming process exhibit a fiber-orientation which causes anisotropic effects regarding the sintering shrinkage, the surface roughness and Young's modulus.



FAU-Autoren / FAU-Herausgeber

Dermeik, Benjamin
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Freihart, Matthias
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Greil, Peter Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Schlordt, Tobias
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Travitzky, Nahum apl. Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)


Zitierweisen

APA:
Schlordt, T., Dermeik, B., Beil, V., Freihart, M., Hofenauer, A., Travitzky, N., & Greil, P. (2013). Influence of calendering on the properties of paper-derived alumina ceramics. Ceramics International, 40(3), 4917 – 4926. https://dx.doi.org/10.1016/j.ceramint.2013.10.080

MLA:
Schlordt, Tobias, et al. "Influence of calendering on the properties of paper-derived alumina ceramics." Ceramics International 40.3 (2013): 4917 – 4926.

BibTeX: 

Zuletzt aktualisiert 2018-09-07 um 14:10