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Information Journal Paper

Title

Dielectric Properties of Plasma Sprayed Silicates Subjected to Additional Annealing

Pages

  105-114

Abstract

 several silicate materials were plasma sprayed and characterized by the authors in recent years from the point of view of their chemical and phase compositions, microstructure and mechanical as well as thermal properties. The present work is concerned with selected Dielectric properties of these deposits. Synthetic mullite and steatite as well as natural olivine-forsterite were plasma sprayed using the water-stabilized plasma system (WSP® ). The deposits were striped-out, ground and polished to produce samples in form of plates with a smooth surface. Part of samples was later annealed in air. These samples-after coverage by metal electrodes functioning as monoblock capacitors-were tested in the alternative low voltage electric field to measure capacity and loss factor in the frequency range from 200 Hz to 1 MHz. Relative permittivity was calculated from the measured capacity. Volume resistivity was measured in the direct electric field. It is shown that the relative permittivity of as-plasma sprayed Silicates is less stable compared to bulk in the whole studied frequency range. However, thermal Annealing modifies the structure much closer to the sintered bulk which is also reflected in Dielectric properties. Insulating ability of plasma-sprayed Silicates with and without Annealing is discussed in consequence with chemical changes and phase changes induced by Annealing. Prog. Color Colorants Coat. 10 (2017), 105-114© Institute for Color Science and Technology.

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  • Cite

    APA: Copy

    Ctibor, p., Sedlacek, j., Nevrla, b., & Neufuss, K.. (2017). Dielectric Properties of Plasma Sprayed Silicates Subjected to Additional Annealing. PROGRESS IN COLOR, COLORANTS AND COATINGS, 10(2 ), 105-114. SID. https://sid.ir/paper/723753/en

    Vancouver: Copy

    Ctibor p., Sedlacek j., Nevrla b., Neufuss K.. Dielectric Properties of Plasma Sprayed Silicates Subjected to Additional Annealing. PROGRESS IN COLOR, COLORANTS AND COATINGS[Internet]. 2017;10(2 ):105-114. Available from: https://sid.ir/paper/723753/en

    IEEE: Copy

    p. Ctibor, j. Sedlacek, b. Nevrla, and K. Neufuss, “Dielectric Properties of Plasma Sprayed Silicates Subjected to Additional Annealing,” PROGRESS IN COLOR, COLORANTS AND COATINGS, vol. 10, no. 2 , pp. 105–114, 2017, [Online]. Available: https://sid.ir/paper/723753/en

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