Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) a combination PVA with polyethylene glycol (PEG) added as plasticizer, were introduced polymer binders to improve the compaction oxide mixtures. It has been done by forming suspension varying solution concentration composition. By evaporating solvent, new mat...

In this study, the thermophysical properties such as thermal expansion, diffusivity and conductivity, specific heat capacity of ceramic samples made from kaolin natural zeolite are investigated up to 1100 °C. The were prepared Sedlec (Czech Republic) (Nižný Hrabovec, Slovakia). Kaolin was partially replaced with a in amounts 10, 20, 30, 40, 50 mass%. measurements performed on cylindrical using ...

It is important for the improvement of mechanical properties quenching and partitioning (QP) steels to control martensite transformation behavior stability untransformed austenite. In this study, we evaluated restart temperature (Mr) via a dilatometer during reheat austempering pattern. This heat pattern corresponding typical treatment QP steel involves TQ, between start (Ms) finish temperature...