sulphosalts in the system agsbs2-agass2 have been experimentally investigated using dry methods. the solid solutions which form between ?-miargyrite and smithite have different structures. the epma data for the solid solution series show that there is an inverse relation between sb and as. the cell parameters of the solid solution between ?-miargyrite and smithite increase up to about 50% of...

sulphosalts in the system agsbs2-agass2 have been experimentally investigated using dry methods. the solid solutions which form between ?-miargyrite and smithite have different structures. the epma data for the solid solution series show that there is an inverse relation between sb and as. the cell parameters of the solid solution between ?-miargyrite and smithite increase up to about 50% of ag...

The microstructure, hardness evolution, and thermal stability of mechanically alloyed (MA-ed) nanocrystalline Cu–10 wt %Nb solid solution during heat treatment were examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) observations, and microhardness measurement. It is found that the pronounced precipitati...

A comparing study on formation and microstructure features of aluminum titanate is investigated through both solid-state and sol-gel processes. Aluminum titanate formed by firing at 1350ºC and 1450ºC for 4h in solid-state process. In the sol-gel process formation of submicron sized particles is followed by addition of sucrose into the transparent sol. XRD analysis was confirmed the formation of...

Eight NbC solution matrix cermets were prepared by liquid phase sintering of mixtures containing NbC, WC, Ti(C0.7N0.3), Mo2C, Co and Ni powders. The influence the WC Ti(C0.7N0.3) content on microstructure mechanical properties was investigated. Microstructural investigation supported thermodynamic equilibrium calculations to predict composition constituent phases as a function at 1420 °C. resul...

An efficient procedure is presented for the evaluation of solid oxide fuel cell (SOFC) anode microstructure triple phase boundary length (TPBL). Triple phase boundary- the one that is common between three phases of the microstructure- has a great influence on the overall efficiency of SOFC because all electrochemical reactions of anode take place in its vicinity. Therefore, evaluation of TP...

Acoustic cloak using anisotropic density or pentamode (PM) material is capable of concealing target from any detective acoustic wave. The pentamode material scheme is more promising due to its solid phase feature and broadband efficiency [1, 2]. However, perfect PM material in theory doesn’t have static stability, and therefore some imperfection in practically designed microstructure PM materia...

The experiment of the rheocasting-rolling for semi-solid magnesium was carried out on the equipment made by ourselves in our laboratory. Semi-solid AZ91D magnesium slurry was prepared by cooling slope and mchanical sirring The evolution of microstructure under different technological parameters were studied. The results show that the technological parameters have great influence on the microstr...