Deformation characteristics of the near-surface layers of zirconia ceramics implanted with aluminum ions

S. A. Ghyngazov, I. P. Vasiliev, T. S. Frangulyan, A. V. Chernyavski

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)

Аннотация

The effect of ion treatment on the phase composition and mechanical properties of the near-surface layers of zirconium ceramic composition 97 ZrO2-3Y2O3 (mol%) was studied. Irradiation of the samples was carried out by accelerated ions of aluminum with using vacuum-arc source Mevva 5-Ru. Ion beam had the following parameters: the energy of the accelerated ions E = 78 keV, the pulse current density Ji = 4mA / cm2, current pulse duration equal τ = 250 mcs, pulse repetition frequency f = 5 Hz. Exposure doses (fluence) were 1016 icy; 1017 ion/cm2. The depth distribution implanted ions was studied by SIMS method. It is shown that the maximum projected range of the implanted ions is equal to 250 nm. Near-surface layers were investigated by X-ray diffraction (XRD) at fixed glancing incidence angle. It is shown that implantation of aluminum ions into the ceramics does not lead to a change in the phase composition of the near-surface layer. The influence of implanted ions on mechanical properties of ceramic near-surface layers was studied by the method of dynamic nanoindentation using small loads on the indenter P=300 mN. It is shown that in ion- implanted ceramic layer the processes of material recovery in the deformed region in the unloading mode proceeds with higher efficiency as compared with the initial material state. The deformation characteristics of samples before and after ion treatment have been determined from interpretation of the resulting P-h curves within the loading and unloading sections by the technique proposed by Oliver and Pharr. It was found that implantation of aluminum ions in the near-surface layer of zirconia ceramics increases nanohardness and reduces the Young's modulus.

Язык оригиналаАнглийский
Название основной публикацииIOP Conference Series: Materials Science and Engineering
ИздательInstitute of Physics Publishing
Том93
Издание1
DOI
СостояниеОпубликовано - 13 окт 2015
Событие21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015 - Tomsk, Российская Федерация
Продолжительность: 5 окт 20159 окт 2015

Другое

Другое21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015
СтранаРоссийская Федерация
ГородTomsk
Период5.10.159.10.15

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

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