This paper describes an experimental study on calcium sulphate scaling and prevention by newly treated polyacrylamide in a laboratory model. In order to study the inhibiting capacity of the chemical used, experiments were performed in solutions involving treatment of synthetic sea water with different concentrations of the polymer. Polyacrylamide gave significantly lower precipitation rate comp...

MIL03346 meteorite: It is a martian meteorite (nakhlite) collected from Miller Range, Antarctica. It contains variety of hydrous Caand Fe 3+ -sulfates, and other H2O/OH-bearing species, thus has been extensively studied, with a purpose to build the links to aqueous alteration processes on Mars [4-9]. The martian origin of Ca-sulfates and jarosites in MIL 03346 is validated by the finding of the...

Haze related air pollution has become one of major environmental concerns in some Asian countries. Sulfate is a main component ambient particulate matter (PM) the urban environment during haze episodes. Among pollutants, sulfur dioxide (SO2) an important precursor sulfate and new atmospheric particle formation. However, under different conditions its underlying formation mechanisms are not clea...

The infiltration behaviour of CaO-MgO-Al2O3-SiO2 (CMAS) in Electron Beam Physical Vapour Deposited (EB-PVD) 7 wt% yttria stabilised zirconia (7YSZ) under controlled atmospheres (dry, wet and sulphurizing) was studied detail. microstructure the CMAS-infiltrated 7YSZ CMAS residue on top were analysed to interpret corrosion mechanisms. One major goals investigate stability CaSO4 into columns. At t...