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

Sandhya Kulkarni | Zendy; B.M. Nagabhushana | Zendy; Narsimha Parvatikar | Zendy; C. Shivakumara | Zendy; R. Damle | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

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

Author(s) -

Sandhya Kulkarni,

B.M. Nagabhushana,

Narsimha Parvatikar,

C. Shivakumara,

R. Damle

Publication year - 2011

Publication title -

isrn materials science

Language(s) - English

Resource type - Journals

eISSN - 2090-6099

pISSN - 2090-6080

DOI - 10.5402/2011/808560

Subject(s) - materials science , wollastonite , dielectric , nanocrystalline material , crystallite , ceramic , porosity , dissipation factor , conductivity , calcination , crystallization , composite material , mineralogy , dielectric loss , phase (matter) , analytical chemistry (journal) , chemical engineering , metallurgy , nanotechnology , chemistry , raw material , biochemistry , optoelectronics , organic chemistry , engineering , catalysis , chromatography

Nanocryst. porous CaSiO3 ceramic powders have been synthesized by a novel low-temp. initiated self-propagating, gas-producing soln. combustion method. Single phase β-CaSiO3 (Wollastonite) is formed by calcination at 900°C for 3h. The crystn. and phase formation temps. 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 Scherrerf's formula as well as from TEM (Transmission Electron Microscopy). The Wollastonite powder is exposed to 60Co γ-radiation to accumulated doses of 1, 3, and 5 KGy and low-frequency (102-106 Hz) dielec. measurements are carried out before and after irradn. The dielec. cond. is estd. from the dielec. const. 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 dielec. and cond. properties is discussed in relation to porosity effect

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research