title: Explorative kinetic study on the thermal degradation of five wood species for applications in the archaeological field.
abstract: Differential scanning calorimetry (DSC) and thermogravimetric analysis (TG) were performed on wood samples of different essences (fir, chestnut, poplar, linden and oak) before consolidation. A kinetic analysis was applied on the two-steps decomposition processes occurring in all wood samples using either the multiheating rates Kissinger equation and the isoconversional Ozawa-Flynn-Wall method that enables the variation of activation energy to be determined as a function of the degree of reaction. Taking into account both decomposition temperature and activation energy for the first degradation step oak seems to be the less stable sample. The comparison of DSC curves performed in air with those in oxygen enables to consider the role of the partial pressure of oxygen in the mechanisms of both decompositions.
authors.affiliation: Dipartimento di Ingegneria Chimica, dei Materiali, delle Materie prime e Metallurgia, Università di Roma La Sapienza, Via del Castro Laurenziano, Roma, Italy. stefano.vecchio@uniroma1.it
authors.forename: Stefano
authors.initials: S
authors.lastname: Vecchio
authors.forename: Giorgio
authors.initials: G
authors.lastname: Luciano
authors.forename: Enrico
authors.initials: E
authors.lastname: Franceschi
mesh_terms: D028202:Abies; D031319:Aesculus; D001106:Archaeology; D002152:Calorimetry, Differential Scanning; D003890:Desiccation; D007700:Kinetics; D032107:Populus; D029963:Quercus; D013818:Thermogravimetry; D032384:Tilia; D014934:Wood / Q000737:chemistry*