Measurement of elemental composition of carbon and composite ceramic materials using PIXE and RBS methods

Abstract

With the help of the PIXE and RBS methods, the elemental composition of a ceramic coating on Zr alloy, surface layers of heat treated TiNi alloy, and Ar + implanted pyrolytic graphite is investigated. It is shown that the PIXE and RBS methods are complementary and their combined use can provide additional information on the elemental composition of the surface layers. It was determined that the microarc oxida tion of Zr alloy in an electrolyte with addition of ultrafine Y 2 O 3 powder leads to introduction of Y in the sub strate material. An effect of the surface segregation of Ti was found in TiNi alloy after the heat treatment.

Plasma Electrolytic Modification of Zirconium and Its Alloys: Brief Review

“…Oxide-ceramic PEM coatings were synthesized during microarc oxidation of commercially pure zirconium in an electrolyte containing 6 g/L NaAlO 2 , 2 g/L KOH and 1 g/L sodium hydroxide water glass at room temperature without and with the addition of Y 2 O 3 nanopowder at the rate of 2 and 5 g/L [ 82 ]. To study the incorporation of yttrium oxide Y 2 O 3 into the coating structure, the method of proton-induced X-ray emission (PIXE) was used.…”

“…It is known that the Y 2 O 3 additive is used in the production of cubic zirconia (fianit) as a stabilizer for the cubic modification of ZrO 2 . On this basis, the authors of [ 82 ] assumed that the incorporation of yttrium oxide nanopowder into an oxide-ceramic PEM coating is capable of stabilizing the high-temperature tetragonal and cubic modifications of zirconium dioxide.…”

“… Spectrum of characteristic X-ray emission excited by protons with the energy of 1.5 MeV in a sample with PEM coat formed on zirconium in the electrolyte containing Y 2 O 3 nanopowder [ 82 ]. Reprinted with permission from Ref.…”