Anisotropy of Compressive Strength in Porous Alumina Ceramics
Key Engineering Materials 2014
Ieva Zaķe-Tiļuga, Ruta Švinka, Visvaldis Švinka

Anisotropy of the compressive strength was investigated in porous alumina based ceramics produced by slip casting method. Aluminium paste was used as pore former similarly as in the aerated concrete technology. Materials were sintered at 1650°C and 1750°C. The apparent porosity of the investigated materials was in the range of 54±1% to 60±2%. The compressive strength of the samples in the directions parallel and perpendicular to the sample expansion direction was in the range from 3.8±0.3 to 13.0±1.1 MPa and from 6.4±1.3 to 27.0±1.1 MPa, respectively. The mechanical anisotropy was related with the flattening of the introduced pores. The level of mechanical anisotropy was affected by the initial composition of the slurry and sintering temperature.


Atslēgas vārdi
Alumina; mullite; porous ceramics; anisotropy; compressive strength
DOI
10.4028/www.scientific.net/KEM.604.153

Zaķe-Tiļuga, I., Švinka, R., Švinka, V. Anisotropy of Compressive Strength in Porous Alumina Ceramics. Key Engineering Materials, 2014, Vol.604, 153.-156.lpp. ISSN 1662-9795. Pieejams: doi:10.4028/www.scientific.net/KEM.604.153

Publikācijas valoda
English (en)
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