Aluminium matrix hybrid composites (AMHCs) containing 30 wt % Y2W3O12 - (0, 5, 10, 15 wt %) AlN and 30 wt % AlN - (0, 5, 10, 15 wt %) Y2W3O12, defined as Y2W3O12 and AlN rich composites, respectively, were prepared by high energy ball milling followed by compaction, sintering and forging. The ha...

Dual-filler systems may promote synergetic effects to mechanical properties in rubber compounds. The use of metakaolin (M) and carbon black (C) in nitrile rubber (NBR) compounds was studied with respect to rheological and non-obvious mechanical tests. The reaction order of the curing process was...

This study investigates the effectiveness of metakaolin (MK) in mitigating the autogenous shrinkage of alkali-activated slag (AAS). It is found that the autogenous shrinkage of AAS paste can be reduced by 40% and 50% when replacing 10% and 20% slag with MK, respectively. By providing additional ...

The present research work investigates the utilization of metakaolin as a mineral admixture in improving the properties of concrete mixes, containing varying percentages of recycled coarse aggregates (RCA). For this, fifteen concrete mixes have been designed by substituting natural coarse aggreg...

The effects of simultaneous addition of limestone and metakaolin with different mass ratio on the hydration of Portland cement are investigated by a multi-method approach. The results indicate that the strengths of Portland cement mortars are depended on the mass ratio of metakaolin to limestone...

Despite the significant advances in understanding the structure of geopolymers in the last decades, the role of water in the geopolymerization of aluminosilicates and within the structure of geopolymers remains elusive. The present paper investigates the role of water in the geopolymerization of...

In this research, metakaolin-based geopolymers were synthesized to study their deterioration in marine environment. The geopolymers were exposed in air, seawater, dry-wet and heat-cool cycles of seawater for 30, 60 and 90 days. The mechanical property of the geopolymers was characterized through...

Pervious concrete has been studied widely considering its environmental benefits. Owing to its porous nature, it reduces the runoff quantity recharging the groundwater and as well reduces the effect of urban heat island. Previous studies have been focused on characterizing and understanding stru...

The influences of rice husk ash (RHA) on the reaction kinetics, mechanical property, and microstructure of metakaolin-based geopolymer (MG) were investigated. Geopolymer pastes containing different contents of RHA were prepared by sodium silicate activation. Analysis results show that both metak...

In this work the influence of the activator concentration on the inorganic polymer structure based on metakaolin was investigated. Changes in the aluminosilicate structure of the metakaolin during alkali-activation have been analyzed in detail on the basis of XRD, SEM and FT-IR analysis and ATR/...

The aim of this work was to develop and optimize the method for geopolymeric materials preparation, which can be potentially used as membranes in gas or liquids separation processes. The used method involved hydrothermal growth of zeolite layers on geopolymeric support – the compatibility of sp...

The effect of molybdates, in the concentration range 0.001–0.1 mol dm−3, at pH 10, 7 and 3 has been studied using potentiodynamic and impedance methods. Epp is seen to shift as much as 450 mV depending on the chloride ion concentration. The competitive adsorption of chloride and molybdate anion...

In this study, the LDH containing a kind of green inhibitor (sodium molybdate) was synthesized and utilized in a poly-vinyl alcohol (PVA) base coating applied on the aluminum (5054 series) surface. After evaluating the LDH performance, the inhibitor release from the LDH crystals was examined by ...

This paper describes the first attempts for the electrosynthesis of polypyrrole films containing molybdate onto aluminium electrodes. Electrogeneration was carried out in an alkaline solution in the presence of molybdate, nitrate and the monomer. The optimum concentrations for electropolymerisat...

The influence of the Na2MoO4 initial concentration on the corrosion rate of aluminium in the H3PO4 solution (0.5, 1, 2 M) between 290 and 323 K was studied using a gasometric technique. Inhibition efficiency was calculated. Depending on the initial concentration of Na2MoO4 the inhibition mechani...

In this paper the inhibitive performance of cerium molybdate nanowires prepared by a novel methodology is reported. The methodology is based on a low-temperature, controlled-rate mixing process. Structurally, cerium molybdate nanowires were found to be amorphous-like materials whose inhibiting a...

Herein, the hierarchical nickel [email protected] graphene [email protected] aluminum layered double hydroxides (NiMoO4@[email protected]) architecture assembled from well-aligned nanosheets is successfully constructed on Ni-foam through a three-step strategy. For the first time, ultrathin graph...

A quick method for surface treatment of aluminium foil with environment-friendly and effective molybdate-based coating was developed in this study. Aluminium foil samples were treated with molybdate-based solution. The microstructure and composition of the resulting molybdate-based conversion co...

Thermogravimetry, differential thermal analysis and differential thermogravimetry have been used to study the decomposition of hydrated selenates of manganese(II), cobalt, nickel, copper(II), zinc and cadmium. Based on the results obtained, mechanisms of decomposition have been proposed. The dec...

Liquid–liquid extraction and separation of samarium(III) were carried out by using 0.025 mol dm−3 2-octylaminopyridine(2-OAP) in xylene at 298 K. The extraction behavior of samarium was studied as a function of pH, weak acid concentration, extractant concentration, diluent, and equilibration ti...