aluminum base composite materials with variable properties which have been strengthened by alb 2 particles have been widely used. in this study, composites with variable properties of al-5%b and al-2%mg-2%b which are produced through centrifugal casting are investigated as far as their microstructure and hardness are concerned. the microstructure of these composite were studied by using metallo...

Layered double hydroxide (LDH) compounds are characterized by structures in which layers with a brucite-like structure carry a net positive charge, usually due to the partial substitution of trivalent octahedrally coordinated cations for divalent cations, giving a general layer formula [(M 1 xM 3+ x)(OH)2] . This positive charge is balanced by anions which are intercalated between the layers. I...

Precipitation behaviour of wrought Al-6Mg alloys with ternary scandium and quaternary zirconium and titanium has been studied. Hardness measurements and resistivity studies are employed to assess the precipitation behaviour of scandium doped Al-6Mg alloy without or with quaternary additions of zirconium and titanium. Further, the kinetics of precipitations are studied by differential scanning c...

This paper presents the influence of P2O5 incorporated in slag on hydration characteristics cement-slag system. It was found that gradual addition phosphorus oxide did not change overall mineralogy products. Except retardation dormant stage, chemically bound water and portlandite contents, degree slag, pore structure at all investigated ages were similar among pastes with different percentages....

Organic-inorganic hybrid hydrogel electrolytes were prepared by mixing hydrotalcite, cross-linked potassium poly(acrylate) and 6 M KOH solution. The organicinorganic hybrid hydrogel electrolytes had high ionic conductivity (0.456–0.540 S cm) at 30 °C. Moreover, the mechanical strength of the hydrogel electrolytes was high enough to form a 2–3 mm thick freestanding membrane because of the reinfo...

Based on the idea of alloying welding seams, a series of Zn-xAl filler metals was calculated and designed for joining Mg/Al dissimilar metals by gas tungsten arc (GTA) welding. An infrared thermography system was used to measure the temperature of the welding pool during the welding process to investigate the solidification process. It was found that the mechanical properties of the welded join...

This paper reports the carbonation characteristics of a cement-slag system exposed to accelerated testing, and its improved resistance with increasing MgO content in blast furnace slag, which hydrotalcite-like phase plays key role. Our research showed that started carbonate upon contacting ions bound more than 15 wt% CO2−3 mildly carbonated transition areas. value was positively associated magn...