Scientific Program

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Lecture

Raman spectroscopic characterization of binder systems for carbon-bonded filters

Wednesday (07.10.2020)
13:20 - 13:40 Room 2
Part of:


A contribution to the production of zero-defect materials is the development of carbon-bonded alumina foam filters for removing nonmetallic inclusion from molten metals. In this work environmentfriendly binder systems for these filters based on a mixture of lactose and tannin with and without CarboresP were investigated by Raman spectroscopy. The size of sp2 carbon clusters was estimated using the intensity ratio of the D- and G-bands determined from Raman spectroscopy measurements.

Raman spectra of the pure substances lactose, tannin, CarboresP and mixtures thereof were recorded. Both in-situ measurements with the samples in a heating chamber and measurements on pre-annealed samples were performed. The carbon cluster sizes varying due to the heat treatment were obtained by the Raman measurements and then compared.

The Raman spectroscopy at high-temperatures was complemented by high-temperature X-ray diffraction.

Speaker:
Simon Brehm
TU Bergakademie Freiberg
Additional Authors:
  • Dr. Cameliu Himcinschi
    TU Bergakademie Freiberg
  • Martin Rudolph
    TU Bergakademie Freiberg
  • Thomas Hammer
    TU Bergakademie Freiberg
  • Benjamin Bock
    TU Bergakademie Freiberg
  • Prof. Dr. David Rafaja
    TU Bergakademie Freiberg
  • Prof. Dr. Christos Aneziris
    TU Bergakademie Freiberg
  • Prof. Dr. Jens Kortus
    TU Bergakademie Freiberg