TY - JOUR
T1 - Preparation and thermal behavior of CaCO3/SiO2 nanocomposite
AU - Pach, Ladislav
AU - Hrabe, Zdenek
AU - Svetik, Stefan
AU - Komarneni, Sridhar
N1 - Funding Information:
This research was supported by the US-Slovak Science and Technology Joint Fund under Project 011–95.
PY - 1998
Y1 - 1998
N2 - The preparation of CaCO3 from a supersaturated solution of Ca(HCO3)2 in a microwave oven was studied at 25°C and pH of ∼7.1 and 7.3, with and without colloidal SiO2 as an additive. SiO2 particles controlled the nucleation, size, and shape of crystals and were incorporated into the CaCO3/SiO2 nanocomposite. Incorporation of SiO2 increased with increased SiO2 addition into the solution and with increased rate of precipitation. Heating the above nanocomposite precipitate led to crystallization of calcium silicate at a low temperature of 450°C, due to intimate contacts of CaCO3 and SiO2 in the Composite.
AB - The preparation of CaCO3 from a supersaturated solution of Ca(HCO3)2 in a microwave oven was studied at 25°C and pH of ∼7.1 and 7.3, with and without colloidal SiO2 as an additive. SiO2 particles controlled the nucleation, size, and shape of crystals and were incorporated into the CaCO3/SiO2 nanocomposite. Incorporation of SiO2 increased with increased SiO2 addition into the solution and with increased rate of precipitation. Heating the above nanocomposite precipitate led to crystallization of calcium silicate at a low temperature of 450°C, due to intimate contacts of CaCO3 and SiO2 in the Composite.
UR - http://www.scopus.com/inward/record.url?scp=0342286668&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0342286668&partnerID=8YFLogxK
U2 - 10.1016/S0025-5408(98)00159-7
DO - 10.1016/S0025-5408(98)00159-7
M3 - Article
AN - SCOPUS:0342286668
SN - 0025-5408
VL - 33
SP - 1653
EP - 1660
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 11
ER -