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Thermal Expansion Behavior of Pure and Doped Cordierite by Time-of-Flight Neutron DiffractionJ. Haas, P. Predecki, J. Faber Jr., and R. L. HittermanIn order to reveal the mechanism of the negative c-axis expansion in cordierite (4 MgO 4 Al2O3 10 SiO2), the
thermal expansion of Cordierite containing small amounts of Cs, Li, B, Ge, Sc and Ni-cations was investigated by
time-of-flight neutron diffraction at temperatures between 22 and 750 degree C. The samples were prepared by melting
the constituent oxides followed by quenching and devitrification to obtain the hexagonal form (Indialite). Using
the neutron powder diffraction data, the atom positions in the space group P6/mcc were refined by Rietveld least
squares analyses.
Note: All presentations at this site are in abstract format. Feel free to email me for detailed documents. Related Publications:"Thermal Expansion Behavior of Pure and Doped Cordierite by Time-of-Flight Neutron Diffraction," J.
Haas, P. Predecki, J. Faber Jr. and R. L. Hitterman, Advances in X-ray Analysis, Vol. 30, pp. 395-405 (1987). "Lattice Thermal Expansion Effects in Pure and Doped Cordierite by Time-of-Flight Neutron Diffraction," P. Predecki, J. Haas, J. Faber Jr. and R. L. Hitterman, Advances in X-ray Analysis, Vol. 29, pp. 173-184 (1986). |