TY - JOUR
T1 - AC electrical measurements support microstructure model for carbonization
T2 - A comment on 'Dielectric relaxation due to interfacial polarization for heat-treated wood'
AU - Kercher, Andrew K.
AU - Nagle, Dennis C.
PY - 2004
Y1 - 2004
N2 - AC electrical measurements were carried out for heat-treated wood. Sugimoto and Norimoto (S&N), from these measurements, deduce that carbonized wood is a heterogeneous structure that exhibits a Maxwell-Wagner interfacial polarization, which occurs at the interface of isolated conductive regions in a dielectric matrix. The quasipercolation model explains the S&N data as well as other fundamental property changes that occur during carbonization of hard carbon materials. The important microstrucural changes in the quasipercolation model of carbonization inlcude: the predominance of small turbostratic crystallite clusters, and increasing volumetric dominance of an extensive percolating structure.
AB - AC electrical measurements were carried out for heat-treated wood. Sugimoto and Norimoto (S&N), from these measurements, deduce that carbonized wood is a heterogeneous structure that exhibits a Maxwell-Wagner interfacial polarization, which occurs at the interface of isolated conductive regions in a dielectric matrix. The quasipercolation model explains the S&N data as well as other fundamental property changes that occur during carbonization of hard carbon materials. The important microstrucural changes in the quasipercolation model of carbonization inlcude: the predominance of small turbostratic crystallite clusters, and increasing volumetric dominance of an extensive percolating structure.
KW - A. Charcoal
KW - B. Carbonization
KW - D. Electrical properties
KW - Dielectric properties
UR - http://www.scopus.com/inward/record.url?scp=0344308312&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2003.10.037
DO - 10.1016/j.carbon.2003.10.037
M3 - Article
AN - SCOPUS:0344308312
SN - 0008-6223
VL - 42
SP - 219
EP - 221
JO - Carbon
JF - Carbon
IS - 1
ER -