CC BY 3.0 DERudolph, ThomasWeisskopf, Karl-L.Pannhorst, WolfgangPetzow, Günter2024-08-272024-08-271991https://oa.tib.eu/renate/handle/123456789/15085https://doi.org/10.34657/14107The non-isothermal sintering of a P2O5-modified cordierite glass powder was investigated using sintering dilatometry, DTA and x-ray diffractometry. A typical densification curve as obtained by dilatometry with a constant heating rate is discussed. To clarify the dependence of the final degree of porosity on the heating rate additional porosity measurements were carried out on selected specimens using a stereological image processing system. The porosity exhibits a distinct minimum for a heating rate of 15 K/min. This effect is discussed based on a variation of the effective sintering interval which ranges from Tg of the glass to the onset temperature of crystallization. Together with the crystallization behaviour, as given in part 1 of this paper, a schematic description of the microstructural development is presented.enghttps://creativecommons.org/licenses/by/3.0/de/660Article