Abstract The thermal properties and evolution of mineralogy colour kaolinitic clay from the Terra Alta region were studied. these materials consists mainly kaolinite (13–27 mass%) quartz (48–86 mass%). Minor illite, hematite, K -feldspar calcite also occur. linear expansion absorption curves used to predict optimal firing temperature raw clays. During firing, 1100 °C water decreases steeply, du...

This work designs a silica (SiO2) layer on molybdenum metal core to provide new insights the corrosion resistance of silica/silicide coating in Ni-based superalloy. The substrate coated with MoSi2 by pack cementation was pre-oxidized fabricate cristobalite scale surface and preoxidation specimens were chosen examine corrosion-resistant property using DSM11 superalloy at 1550 °C. In order prepar...

Adhesion and homogeneity of the coating-substrate were analyzed on basis establishment coating mineralogy. Substrate raw materials used kaolin clay a calcined alumina 4 µm; series higher density ceramic coatings deposited using aluminas 0.5 µm µm, silica fume, talc. The dip technique was applied to all substrates later sintered at 1300 ºC. Shrinkage mixtures substrate separately evaluated. X-ra...

Mudeungsan (Mount Mudeung) is an extinct volcano located in the southwestern part of South Korea that was formed Late Cretaceous period. This mountain, 1187 m above sea level, adjacent to Gwangju Metropolitan City, which has a large population (about 1.4 million) and volcanic rocks, including columnar joints, form various types outcrops. Although this mountain listed as national geopark 2014 UN...