The catalytic activity of 1,3,5-triazine-pentaethylenehexamine (TAPEHA) polymer-supported Pd nanoparticles was investigated in the reduction of nitro arenes to the corresponding amines by NaBH4 or N-2 H-4.H2O. Optimized ...

The grain growth kinetics in the 1, 2, 3 and 4 wt.% SiO2 doped ZnO Was Studied Using the simplified phenomenological grain growth kinetics equation G(n) - G(n)(o) = K(o)texp(-Q/RT) together with microstructure properties ...

The kinetics of grain growth in 1-4 wt. % TiO2-doped ZnO was studied using the simplified phenomenological grain growth kinetics equation together with examination of microstructure and densification of the sintered samples. ...

A novel porcelain was obtained by sintering 50% kaolinite clay, 25% waste glass and 25% fly ash (a by-product of Turkey thermal power plant) at different temperatures of 1373-1523 K (1100-1250 degrees C). The microstructure ...

A magnesium aluminate spinel powder (72 % Al2O3 & 28 % MgO) was prepared with mechanical activation. Samples were sintered in a temperature range of 1400-1750 degrees C. The final sintered products were characterized with ...

This paper presents the results of research on mechanical activation of raw talc in planetary mill. Raw talc was mechanically activated in a planetary mill for five different grinding times as 15 min, 30 min, 45 min, 60 ...

The effect of MnO additions between 0 and 5 wt% to the grain growth of the ZnO-6 wt% Sb2O3 system was studied between 1000 and 1300 degrees C in air. The kinetic grain growth study carried out using the expression G(n)-G(o)(n) ...

The effect of TiO2 on the grain growth of the ZnO-Bi2O3-CoO-MnO ceramic system prepared by chemical coprecipitation, was studied between 1150 and 1300 degreesC in air. Bi2O3 melts during firing, and then TiO2 dissolves ...

The effects of the amount of Al2O3 (0, 2 and 4 wt.%) on the microstructural properties have been studied in a binary ZnO-6 wt% Bi2O3 system. The microstructure of the samples consists mainly of ZnO grains with beta-Bi2O3 ...