Evaluation of adhesion strength of sol-gel ceramic insulation for hts magnets

E. Celik, J. Schwatz, E. Avci, Y. S. Hascicek

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19 Scopus citations

Abstract

Adhesion strength of high temperature insulation materials deposited on silver was investigated. CeCh and ZrOz based coatings on Ag substrates were prepared by the sol-gel technique. Experiments for determining the adhesion strength between insulations and silver were performed using a mini tensile testing machine. The microstructures of coatings and their interfaces were determined by means of SEM, EDS, and X-ray diffraction. The results indicated that the failure was in the form of a mixed type as interfacial/cohesive defect. The average adhesive strength of ZrOz, CeCh, ZrO2+20wt%MgO, ZrO2+8wt%Y2O3, ZrOz+ 8wt%CeO2, ZrO2+15wt%In2O3 and ZrO2+15wt%SnO2 were found to be 0.763, 0.913,1.045,1.150, 0.915 0.833 and 0.797 MPa, respectively. Y2O3, MgO, and CeCh doped ZrOz showed the best adhesive properties.

Original languageEnglish (US)
Pages (from-to)1916-1919
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 2
DOIs
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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