A low-temperature hydrothermal synthesis technique was employed as a medium to produce ceria−zirconia mixed oxides particles at temperatures of 200–300 °C and pressure 10 MPa in batch process. At these conditions, the average crystallite sizes increased slightly with increasing reaction temperature when feed solution containing ceria zirconia ratio 1:1 fed. SEM images illustrated that morpholog...

Weak first-order phase transitions proceed with percolation of new phase. The kinematics of this process is clarified from the point of view of subcritical bubbles. We examine the effect of small subcritical bubbles around a large domain of asymmetric phase by introducing an effective geometry. The percolation process can be understood as a perpetual growth of the large domain aided by the smal...

Currently in Malaysia, most wastes are disposed into poorly managed systems with little or no pollution protection measures. Large amounts of such as textiles generated through hospitals and health care centers. However, the improper management these abundantly may pose an environmental problems fire hazard. Cotton textile is a potential biomass for bioethanol production. Subcritical water (Sub...

Article history: Received: 23.12.2013. Received in revised form: 15.01.2014. Accepted: 15.01.2014. Subcritical austenite reverse transformation quenching was used to improve the mechanical properties of 30CrMnSi steel, and the microstructure and mechanical properties of the samples were analyzed by subcritical austenite reverse transformation quenching. Experimental results show that subcritica...