Effect of electron beam irradiation on structural phase transformations of zirconia-based composite reinforced by alumina nanofibers and carbon nanotubes

A. A. Leonov, Yu F. Ivanov, M. P. Kalashnikov, E. V. Abdulmenova, V. D. Paygin, A. D. Teresov

Research output: Contribution to journalConference article

Abstract

Evolution of microstructure, elemental and phase composition of dense zirconia-based composite under irradiation with electron beam were investigated. Tetragonal zirconia-based composite reinforced by 5 wt% alumina nanofibers and 0.5 wt% single-walled carbon nanotubes was prepared by spark plasma sintering at a temperature of 1500?C. Irradiation of the composite was carried out with a low-energy pulsed electron beam of submillisecond duration in the following mode: beam energy density 15 J•cm-2; pulse duration 200 μs; pulse repetition rate 0.3 s-1; pulses quantity 10, 20, 30 and 40; residual gas pressure (argon) in the working camera 10-2 Pa. It has been established that electron beam treatment leads to the formation of modified multilayered surface, the thickness of which varies from 6 to 40 μm. Redistribution of Al atoms in the modified surface layer was detected. The phase evolution dependent on the quantity of irradiation pulses and manifested in the crystalline structure of material.

Original languageEnglish
Article number012106
JournalJournal of Physics: Conference Series
Volume1393
Issue number1
DOIs
Publication statusPublished - 28 Nov 2019
Event14th International Conference on Gas Discharge Plasmas and Their Applications, GDP 2019 - Tomsk, Russian Federation
Duration: 15 Sep 201921 Sep 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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