TY - JOUR
T1 - Nonexponential dynamics in porous glasses
AU - Gutina, A.
AU - Rysiakiewicz-Pasek, E.
AU - Feldman, Yu
PY - 2001/7
Y1 - 2001/7
N2 - The dielectric relaxation properties of porous glasses prepared from sodium borosilicate glasses are studied by dielectric spectroscopy over a wide range of frequencies (20 Hz-1 MHz) and temperatures (-100-300°C). The dielectric behavior reflecting the geometric disorder is analyzed within the models describing the non-Debye slowly damped dynamics. It is found that the dielectric response is very sensitive to microstructural and mesostructural features of the porous matrix and the properties of a material filling pores. The response contains information on the dynamics of water molecules in pores, which accounts for the interaction of these molecules with the pore surface.
AB - The dielectric relaxation properties of porous glasses prepared from sodium borosilicate glasses are studied by dielectric spectroscopy over a wide range of frequencies (20 Hz-1 MHz) and temperatures (-100-300°C). The dielectric behavior reflecting the geometric disorder is analyzed within the models describing the non-Debye slowly damped dynamics. It is found that the dielectric response is very sensitive to microstructural and mesostructural features of the porous matrix and the properties of a material filling pores. The response contains information on the dynamics of water molecules in pores, which accounts for the interaction of these molecules with the pore surface.
UR - http://www.scopus.com/inward/record.url?scp=0035615720&partnerID=8YFLogxK
U2 - 10.1023/A:1011380529876
DO - 10.1023/A:1011380529876
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AN - SCOPUS:0035615720
SN - 1087-6596
VL - 27
SP - 394
EP - 399
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
IS - 4
ER -