Highly porous wollastonite-diopside glass-ceramics have been successfully obtained by a new gel-casting technique. The gelation of an aqueous slurry of glass powders was not achieved according to the polymerization of an organic monomer, but as the result of alkali activation. The alkali activation of a Ca-Mg silicate glass (with a composition close to 50 mol % wollastonite-50 mol % diopside, w...

Fiber size is an important factor in the tumorigenicity of various mineral fibers and asbestos fibers in animal experiments. We examined the time course of the ability to induce lucigenin-dependent chemiluminescence (CL) from human monocyte-derived macrophages exposed to Japan Fibrous Material standard reference samples (glass wool, rock wool, micro glass fiber, two types of refractory ceramic ...

diopside (CaO·MgO·2SiO2) and wollastonite (CaO·SiO2) glass-ceramics, forming ∼60% crystal phase and ∼40% albite-like Na2O·Al2O3·6SiO2) residual glass were studied. Two other diopside glass-ceramics with higher Na2O and Al2O3 content were also investigated. The phase formation was estimated by DTA, XRD and pycnometry, while the densification process was evaluated by porosity variations, ilatomet...

Fluorescence microscopy-based affinity assay could enable highly sensitive and selective detection of airborne asbestos, an inorganic environmental pollutant that can cause mesothelioma and lung cancer. We have selected an Escherichia coli histone-like nucleoid structuring protein, H-NS, as a promising candidate for an amphibole asbestos bioprobe. H-NS has high affinity to amphibole asbestos, b...

In this study, the effect of wollastonite on mechanical, physical, and morphological properties composites made sesame stem (Sesamum indicum L.) gypsum was investigated. The mixing ratio as a lignocellulosic material with at three levels (10:90, 20:80, 30:70) (0%, 5%, 10%, based dry weight cement) were considered variables. Fire resistance (weight loss) tested according to ISO 11925-3 DIN EN 63...

fire-retarding properties of wollastonite nanofibers in poplar wood (populus nigra) were studied here. some physical properties such as water absorption, volumetric swelling and anti-swelling efficiency (ase) were also measured. specimens were prepared according to the iso 11925 specifications for the fire-retarding properties and according to the astm d4446 -2002 specifications for the physica...

During peritectic steel continuous casting, mold flux properties and film structures play significant roles in controlling slab quality. In this study, fluxes films for casting were obtained using mineral raw materials such as quartz, wollastonite, fluorite, soda ash others. The effects of on investigated through the measurement melting point, viscosity, crystallization temperature, critical co...

The solubility of andradite garnet was determined at 800 °C and 10 kbar in a solution of 10 mol% NaCl and 90 mol% H2O. Experiments were syntheses carried out with high-purity natural wollastonite, reagent hematite or natural specular hematite containing ~1 wt% TiO2, and fluid. All experiments were performed with Mn2O3-Mn3O4 or Fe2O3-Fe3O4 oxygen buffers in a piston-cylinder apparatus with NaCl ...