| Partner: Jarosław Milewski |
Ostatnie publikacje
| 1. | Bochenek K.♦, Milewski J.♦, Aliaksandr M.♦, Basista M., Compression testing of porous ceramic matrices under liquid infiltration: a case study at molten carbonate fuel cell operating conditions, Journal of Power Sources, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2025.238766, Vol.662, No.238766, pp.1-10, 2026 Streszczenie: Considerable efforts have been made in recent years to assess the mechanical strength of the matrix in molten carbonate fuel cells (MCFCs), however most studies have been limited to room-temperature testing. This paper introduces methodologies for measuring the compressive strength of the matrix at operational temperatures of 650 °C. The investigation focuses on the fundamental properties of matrices made from different ceramic powders, such as lithium aluminide, aluminium oxide, and yttria-stabilized zirconia (YSZ), which have various powder morphologies. The experimental results were combined with theoretical predictions derived from the classical Young–Laplace law to quantify capillary forces. The findings demonstrate the significant influence of carbonates on the mechanical integrity of the matrix and suggest that structural damage predominantly occurs during assembly or startup of the MCFC. The results show that the morphology of the powder, including particle size and shape, are the key factors reflecting in the final stress-strain response of the matrix. This approach highlights the objective of the present work, which was to integrate the pressureless infiltration of the fabricated porous ceramic pellets with a eutectic carbonate mixture of Li2/K2CO3 and the uniaxial compression at an operating temperature of 650 °C, thereby mimicking the operational conditions of an MCFC. Słowa kluczowe: Molten Carbonate Fuel Cells (MCFC), Ceramic matrices, Compressive strength, Capillary forces Afiliacje autorów:
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