Article history: Received 17 March 2016 Accepted 2 May 2016 Available online 24 May 2016 Certain alumino-silicates display exotic properties enabled by their framework structuremade of corner-sharing tetrahedral rigid units. Using in situ diamond-anvil cell x-ray diffraction (XRD), we study the pressure-induced transformation of β eucryptite, a prototypical alumino-silicate that undergoes a pha...

The importance of developing new low-cost and safe cathodes for large-scale sodium batteries has led to recent interest in silicate compounds. A novel cobalt orthosilicate, Na2CoSiO4, shows promise as a high voltage (3.3 V vs. Na/Na+) cathode material for sodium-ion batteries. Here, the synthesis and room temperature electrochemical performance of Na2CoSiO4 have been investigated with the compo...

At extreme pressures and temperatures, such as those inside planets and stars, common materials form new dense phases with compacted atomic arrangements and unusual physical properties. The synthesis and study of new phases of matter at pressures above 100 GPa and temperatures above 10(4) K--warm dense matter--may reveal the functional details of planet and star interiors, and may lead to mater...

Spray-dried detergent granules have a complex and multi-scale structure, in which submicron sized crystals of inorganic salts along with multi-lamellar stacks surfactant molecules are dispersed within matrix phase. In this study, two model formulations based on sodium linear alkylbenzene sulphonate (NaLAS) sulphate were used to investigate the molecular structure stacked lamellae. The parameter...

As the thickness of silicon solar wafer and solar cells becomes thinner, the cells are subjected to high stress due to the thermal coefficient mismatch induced by metallization process. Handling and bowing problems associated with thinner wafers become increasingly important, as these can lead to cells cracking and thus to high yield losses. The goal of this work to provide experimental underst...

Two samples of hydrated silica from the bamboo plant ( t̀abasheer’ and `bambusa’ ) were examined by X-ray ̄ uorescence and H, Al and Si solidstate NMR, X-ray di€ raction and thermogravimetric analysis. Silicon is the major elemental component of both samples, with much smaller amounts of aluminium (about 1 2́wt%), iron (0 3́± 0 4́wt%), calcium and magnesium, and traces of phosphorus . The maximum t...

As the most abundant material of rocky planets, high-pressure polymorphs iron- and aluminum-bearing magnesium silicates have long been sought by both observations experiments. Meanwhile, it was recently revealed that iron oxides form (FeO)m(Fe2O3)n homologous series above ?10 GPa according to laboratory Here, we report a new iron-magnesium silicate, approved International Mineralogical Associat...

Abstract Calcium silicates are the main components in cement clinkers. Alite, nesosilicate or island silicate Ca 3 SiO 5 , also named C S chemistry notation, represents phase Portland Due to metastability of Alite at room temperature, quenching from high temperatures is mandatory for preservation and impurities important structure directing factors. Those two aspects result a plethora published...

Biomaterials have evolved over the past three decades and are relatively specialized, highly biocompatible, but low-strength dental materials. Bioactive materials can interact with living tissues or systems. The newly emerging bioactive category of has expanded clinical uses in restorative dentistry endodontics. Examples Calcium Silicate containing Mineral Trioxide Aggregate (Portland cement); ...