Characterisation and development of fine porosity in magnesium potassium phosphate ceramics

0452457 - ÚTAM 2016 RIV NL eng J - Journal Article
Viani, Alberto - Radulescu, A. - Pérez-Estébanez, Marta
Characterisation and development of fine porosity in magnesium potassium phosphate ceramics.
Materials Letters. Roč. 161, December (2015), s. 628-630. ISSN 0167-577X. E-ISSN 1873-4979
R&D Projects: GA MŠMT(CZ) LO1219
Keywords : amorphous materials * chemically-bonded ceramics * microstructure * Rietveld-RIR method * small-angle neutron scattering * specific surface area
Subject RIV: AL - Art, Architecture, Cultural Heritage
Impact factor: 2.437, year: 2015
https://juser.fz-juelich.de/record/255737

Characterisation of porosity and microstructure in chemically-bonded ceramics was accomplished by small-angle neutron scattering. Microstructural parameters were also followed during the setting reaction and obtained kinetic curves were compared with results of XRD quantitative phase analysis up to 1 month. Results indicate that less reactive MgO yields a more compact microstructure, the same happens during the progress of the reaction. The reaction product forms from an amorphous precursor and its development was found to scale with the microstructural parameters. A change in reaction mechanism after 40 min is suggested.
Permanent Link: http://hdl.handle.net/11104/0253449