TY - JOUR
T1 - Sodium sulfate heptahydrate I : the growth of single crystals
AU - Derluyn, H.
AU - Saidov, T.A.
AU - Espinosa-Marzal, R.M.
AU - Pel, L.
AU - Scherer, G.W.
PY - 2011
Y1 - 2011
N2 - Sodium sulfate is one of the most damaging salts for porous building materials. In our quest to increase the durability of civil structures and cultural heritage we need to understand its crystallization behavior. In this paper we investigate the cooling-induced growth of the metastable heptahydrate crystal phase by combining nuclear magnetic resonance, for non-destructive measurement of the concentration, with time-lapse microscopy, to visualize the crystal growth. The growth rate is found to be controlled by interface attachment kinetics. The kinetic growth parameter Gk ranges from 0.001 to 0.007 mm/s for single crystals in a temperature range of 4.8–13 °C.
AB - Sodium sulfate is one of the most damaging salts for porous building materials. In our quest to increase the durability of civil structures and cultural heritage we need to understand its crystallization behavior. In this paper we investigate the cooling-induced growth of the metastable heptahydrate crystal phase by combining nuclear magnetic resonance, for non-destructive measurement of the concentration, with time-lapse microscopy, to visualize the crystal growth. The growth rate is found to be controlled by interface attachment kinetics. The kinetic growth parameter Gk ranges from 0.001 to 0.007 mm/s for single crystals in a temperature range of 4.8–13 °C.
U2 - 10.1016/j.jcrysgro.2011.06.024
DO - 10.1016/j.jcrysgro.2011.06.024
M3 - Article
SN - 0022-0248
VL - 329
SP - 44
EP - 51
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1
ER -