Skip to main content
SpringerLink
Log in

Methodical aspects of determining the elasticity of electrical insulating coatings

  • Published:
Materials Science Aims and scope

Abstract

We have studied the elasticity of 12 different types of polymeric protective coatings. In the course of pure-bending deformation of rectangular plates—specimens, we controlled their dielectric continuity using an electric-spark flaw detector, measured the direct-current resistance, and looked for the appearance of indications of the fracture of the coating surface under a microscope with a ×30 magnification. We have established that highly elastic coatings lose their dielectric continuity under relative strains an order of magnitude lower than those corresponding to the appearance of cracks on the surface. We have concluded that evaluation of the elasticity of coatings by the criterion of loss of their dielectric continuity is the most correct and reliable approach. We also describe the procedure of tests of specimens.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. DSTU 4219: 2003. Steel Main Pipelines. General Requirements for Rust Protection [in Ukrainian], State Committee of Ukraine on the Questions of Technical Regulation and Consumer Policy, Kyiv (2003).

  2. M. I. Karyakina, Tests of Paintwork Materials and Coatings [in Russian], Khimiya, Moscow (1988).

    Google Scholar 

  3. I. P. Gnyp, M. V. Marukha, and M. B. Ratushna, “Methodical aspects of measuring the electrochemical characteristics of protective coatings on metal constructions under working conditions,” in: Bulletin of the National Technical University “KhPI,” Issue 16, No. 275 (2005), pp. 52–55.

  4. GOST 10704-63. Steel Electric-Welded Pipes. Assortment [in Russian], State Committee of Standards, Measures, and Measuring Instruments of the USSR, Moscow (1963).

  5. S. P. Timoshenko, Strength of Materials [Russian translation], Gostekhizdat, Moscow (1945).

    Google Scholar 

  6. TU 88 Ukraina 088.006.-93. Silicon-Organic Insulating Coating for Pipes of Diameter 57–1420 mm, Accessories, and Joining Articles [in Ukrainian], Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv (1993).

  7. O. I. Hulai, O. I. Tselyukh, I. O. Nironovych, and Ya. A. Serednyts’kyi, “Effect of mineral fillers on the properties of silicon-organic coatings,” Fiz.-Khim. Mekh. Mater., 32, No. 5, 67–70 (1996).

    Google Scholar 

  8. M. V. Marukha and I. P. Gnyp, “Anticorrosive temperature-resistant silicon-organic coatings with compacted mineral fillers,” Fiz.-Khim. Mekh. Mater., 40, No. 1, 75–78 (2004).

    Google Scholar 

  9. Ya. Serednyts’kyi, Present-Day Anticorrosive Insulation in Pipeline Transport [in Ukrainian], Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv (1999).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. DPITs “Tekhno-resurs,” Ukrainian Academy of Sciences, Lviv

    I. P. Gnyp & M. P. Voloshyn

  2. Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv

    M. V. Neprila

Authors
  1. I. P. Gnyp
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. V. Neprila
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. P. Voloshyn
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

__________

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 41, No. 6, pp. 65–69, November–December, 2005.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gnyp, I.P., Neprila, M.V. & Voloshyn, M.P. Methodical aspects of determining the elasticity of electrical insulating coatings. Mater Sci 41, 784–790 (2005). https://doi.org/10.1007/s11003-006-0045-1

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11003-006-0045-1

Keywords

Search

Navigation