Templating Approaches Using Natural Cellular Plant Tissue

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Greil P
Zeitschrift: Mrs Bulletin
Jahr der Veröffentlichung: 2010
Band: 35
Heftnummer: 02
Seitenbereich: 145-149
ISSN: 0883-7694


Abstract

Biological preforms such as plant tissue offer a novel approach for manufacturing biomorphous ceramics with an anisotropic cellular micro- and macrostructure pseudomorphous to the natural template structure. Mimicking the hierarchical microstructure of the native template at different length scales from large vessels (mm) down to a cell wall microstructure (\textgreekmm to nm) offers the possibility to tailor the local strut microstructure in biomorphous ceramics in order to improve mechanical properties at low density. Mineralization may be achieved by intercalation of the cell walls with an inorganic, metal organic, or organometallic sol. Heating above the pyrolysis temperature of the hydrocarbons forming the cell wall material in an inert atmosphere finally results in a positive replica of the cellular structure with a metal oxide/carbon composite forming the cell walls. Amorphous, nano- or microcrystalline C/Si-O-C(-N) composite materials are obtained by infiltration with a low viscosity preceramic polymeric precursor, such as polycarbosilane, -silazane, -siloxane, or a copolymer or mixture thereof. Pyrolysis into a biocarbon template and subsequent metal alloy melt or vapor infiltration and reaction at high temperatures above 1000°C is an alternate way to produce single and multiphase carbides and composites.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Greil, Peter Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Forschungsbereiche

E Lightweight Materials
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Greil, P. (2010). Templating Approaches Using Natural Cellular Plant Tissue. Mrs Bulletin, 35(02), 145-149. https://dx.doi.org/10.1557/mrs2010.635

MLA:
Greil, Peter. "Templating Approaches Using Natural Cellular Plant Tissue." Mrs Bulletin 35.02 (2010): 145-149.

BibTeX: 

Zuletzt aktualisiert 2019-14-03 um 16:53