X Conferencia Internacional de Ingeniería Mecánica "COMEC 2019" -V Simposio de Materiales

X Conferencia Internacional de Ingeniería Mecánica

COMEC 2019

Ceramics from Plastics: Innovative Ceramic Processing for Functional Parts

Resumen [ES]

For more than 50 years, research on ceramics has a focus on processing with polymeric precursors. These so-called preceramic polymers consist of an inorganic silicon-containing backbone and organic side groups, which allow for plastic shaping prior to thermal treatment for polymer-to-ceramic transformation, in this paper addressed as pyrolysis, typically under exclusion of air. Due to a massive density change during pyrolysis shrinkage may amount up to 80 vol. %; (partial) compensation can be achieved by addition of particulate fillers. The combination of the preceramic polymer, the fillers, pyrolysis atmosphere and pyrolysis temperature spans a wide parameter field which allow for a tailor-made microstructure with a multitude of materials functionalities in ceramic processing.

Resumen [EN]

For more than 50 years, research on ceramics has a focus on processing with polymeric precursors. These so-called preceramic polymers consist of an inorganic silicon-containing backbone and organic side groups, which allow for plastic shaping prior to thermal treatment for polymer-to-ceramic transformation, in this paper addressed as pyrolysis, typically under exclusion of air. Due to a massive density change during pyrolysis shrinkage may amount up to 80 vol. %; (partial) compensation can be achieved by addition of particulate fillers. The combination of the preceramic polymer, the fillers, pyrolysis atmosphere and pyrolysis temperature spans a wide parameter field which allow for a tailor-made microstructure with a multitude of materials functionalities in ceramic processing.

Sobre el ponente

Michael Scheffler

Prof. Michael Scheffler

OVGU Magdeburg, Inst. Materials and Joining Technologies Flag of Alemania
Información Práctica
Conferencia
English (US)
junio 25, 2019 9:0 a. m.
30 minutos
Salón El Carmen
Autores
Prof. Michael Scheffler
Palabras clave
polymer derived ceramics
preceramic polymers