Ibrahim, Jamal Eldin F. M.Tihtih, MohammedKurovics, EmeseŞahin, Ethem IlhanGömze, László A.Kocserha, István2025-01-062025-01-0620231788-199410.1556/606.2022.006412-s2.0-85163552211https://doi.org/10.1556/606.2022.00641https://hdl.handle.net/20.500.14669/1540This study evaluated the possibility of producing innovative glass-ceramic foams from zeolite-poor rock (Tokaj, Hungary) using alkali-activation and reactive sintering techniques. The composition and morphology of the samples were studied using X-ray diffraction, X-ray fluorescence, scanning electron microscope, and computed tomography techniques. The influence of various sintering temperatures on glass-ceramic foams was examined. It has been observed that zeolite-poor rock has a self-foaming capability. The heat treatment temperature affects the pore size and distribution as well as the technical characteristics of the obtained samples. The resulting glass-ceramic foams possess moderate thermal conductivity ranging from 0.11 to 0.17 W mK-1 and good compressive strength (1.5-4.4 MPa). The produced samples might be utilized for thermal insulation, which would have both economic and environmental advantages. © 2022 The Author(s).eninfo:eu-repo/semantics/openAccessalkali activationceramic foamsthermal conductivityzeolite-poor rockArticle1251Q311918