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Publikācija: Anisotropy of Compressive Strength in Porous Alumina Ceramics

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Anisotropy of Compressive Strength in Porous Alumina Ceramics
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Ieva Zaķe-Tiļuga
Ruta Švinka
Visvaldis Švinka
Keywords Alumina; mullite; porous ceramics; anisotropy; compressive strength
Abstract 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.
DOI: 10.4028/www.scientific.net/KEM.604.153
Reference Zaķe-Tiļuga, I., Švinka, R., Švinka, V. Anisotropy of Compressive Strength in Porous Alumina Ceramics. Key Engineering Materials, 2014, Vol.604, pp.153-156. ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.604.153
Additional information Citation count:
ID 18023