The use of basalt rocks from koitashskoe ore deposit in production of building ceramics and filter materials

Adylov, G. T.; Mansurova, E. P.

doi:10.1007/bf02681397

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ceramic materials with porous structure like silicates of calcium can combine the advantages of both porous materials and ceramics as they have a combination of thermal, electrical, and dielectric properties which make them useful for technological applications. CaSiO 3 is one such material that can be used for the production of special radio ceramics, sanitary components, porcelain materials, lining bricks, glaze, and flux [1]. CaSiO 3 ceramics are also used as a biomaterial in medical industry [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of γ-Irradiation on the Dielectric and Conductivity Properties of Nano-Wollastonite

Kulkarni

Nagabhushana

Parvatikar³

et al. 2011

ISRN Materials Science

View full text Add to dashboard Cite

Nanocrystalline porous CaSiO 3 ceramic powders have been synthesized by a novel low-temperature initiated self-propagating, gas-producing solution combustion method. Single phase β-CaSiO 3 (Wollastonite) is formed by calcination at 900• C for 3 h. The crystallization and phase formation temperatures in this method are found to be lower compared to the powder obtained via solid state reaction method. The powder is characterized by powder XRD (X-Ray Diffraction), and crystallite sizes are evaluated using Scherrer's formula as well as from TEM (Transmission Electron Microscopy). The Wollastonite powder is exposed to 60 Co γ-radiation to accumulated doses of 1, 3, and 5 KGy and low-frequency (10 2 -10 6 Hz) dielectric measurements are carried out before and after irradiation. The dielectric conductivity is estimated from the dielectric constant and loss tangent. Exposure to γ-radiation results in substantial modification in the properties of the ceramic powder due to changes in the porosity of the material. The correlation between dielectric and conductivity properties is discussed in relation to porosity effect.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of γ-Irradiation on the Dielectric and Conductivity Properties of Nano-Wollastonite

Kulkarni

Nagabhushana

Parvatikar³

et al. 2011

ISRN Materials Science

View full text Add to dashboard Cite

show abstract

“…It is possible to control its porosity, it can be easily pressed and its insulating capability is good. Wollastonit is a raw material which is non-carcinogenic, readily available and transportable [33][34]. Wollastonite is very known inorganic filling used in plastics that occurs naturally, which improves mechanical properties such as stiffness and tensile strength but decreases the strength of the impact.…”

Section: Introductionmentioning

confidence: 99%

Wollastanit/PANI/Kolemanit Kompozitlerin Elektromanyetik Kalkanlama Etkinliği

Şahin¹,

Emek²

2020

European Journal of Science and Technology

View full text Add to dashboard Cite

In this study, composites of wollastonite-colemanite were produced by using mixed oxide technique. The wollastonite-colemanite compositions were formed with various proportions for the structural analysis. The results of wollastonite-colemanite structural analysis indicated that second phase did not form in wollastonite and colemanite. The single phases wollastanite-colemanite compounds were measured after sintering between 900-1100°C for X-ray diffraction (XRD). Addionality, the wollastonite/polyaniline/colemanite composites were produced by hot pressing using the compositions of wollastonite-colemanite in different proportions and aniline. The weight ratios of (wollastonite-colemanite) and aniline were 1:1 respectively and epoxy resin was used to produce microwave shielding effectiveness composites. The microwave shielding performances of wollastonite/polyaniline/colemanite composites were investigated by shielding effect in 0 -8 GHz, using two-port vector network analyzer (VNA). A minimum of -41.65 dB shielding effectiveness performance was obtained in 6.26 GHz at the thickness of 1.5 mm. According to the parameters determined in terms of properties, the wollastonite-colemanite compounds were produced as composite with a PANI base and their features were characterized for shielding effect. This microwave shielding performance can be modulated simply by controlling the content of polyaniline and content of wollastonite-colemanite in the samples for the wider and required frequency bands.

show abstract