The capabilities of a newly developed method of rheological study of roasted semifinished articles in simple shear and in shear combined with axial strain induced by additionally applied compressive or tensile stresses are demonstrated. The method is based on the principle of torsion of thin-walled tubes realized in a newly created device and makes it possible to determine the mutual influence of the components of the strain rate tensor of the material, where the strain may be a consequence of dilatancy, anisotropy, asymmetry of a mechanical reaction or other factors. The rheological properties of semifinished articles belonging to the group of porcelains which have been preliminarily roasted at 900 °C, lithium-aluminosilicate glass ceramic, and sintered semiporcelain are studied.
Refractories and Industrial Ceramics – Springer Journals
Published: Jun 9, 2012
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