Effect of grinding and subsequent thermal annealing on phase composition of subsurface layers of zirconia ceramics

T. S. Frangulyan, I. P. Vasil'ev, S. A. Ghyngazov

Результат исследований: Материалы для журналаСтатья

3 Цитирования (Scopus)

Выдержка

The purpose of this study was to evaluate the effect of surface grinding and thermal annealing on phase composition of the subsurface layers of zirconia ceramics sintered from ultradisperse plasma-chemical powders ZrO2 – 3 mol% Y2O3. The phase composition was determined using X-ray diffraction (XRD) analysis. The obtained results indicated that the phase composition of the sintered zirconia ceramics does not change throughout the volume and consists of tetragonal zirconia. The study showed that surface grinding leads to the formation of a monoclinic (m) phase in the subsurface layers of ceramics, and the monoclinic phase formed after grinding undergo a reverse phase transition to the tetragonal (t) modification during subsequent short-term thermal annealing at T = 1000 °C. Recovery by thermal annealing is recommended as a mandatory procedure for XRD analysis of zirconia ceramics subjected to surface grinding.

Язык оригиналаАнглийский
Страницы (с-по)2501-2503
Число страниц3
ЖурналCeramics International
Том44
Номер выпуска2
DOI
СостояниеОпубликовано - 1 фев 2018

Отпечаток

Phase composition
Zirconia
Annealing
X ray diffraction analysis
Powders
Phase transitions
Plasmas
Recovery
Hot Temperature
zirconium oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Цитировать

Effect of grinding and subsequent thermal annealing on phase composition of subsurface layers of zirconia ceramics. / Frangulyan, T. S.; Vasil'ev, I. P.; Ghyngazov, S. A.

В: Ceramics International, Том 44, № 2, 01.02.2018, стр. 2501-2503.

Результат исследований: Материалы для журналаСтатья

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AU - Vasil'ev, I. P.

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N2 - The purpose of this study was to evaluate the effect of surface grinding and thermal annealing on phase composition of the subsurface layers of zirconia ceramics sintered from ultradisperse plasma-chemical powders ZrO2 – 3 mol% Y2O3. The phase composition was determined using X-ray diffraction (XRD) analysis. The obtained results indicated that the phase composition of the sintered zirconia ceramics does not change throughout the volume and consists of tetragonal zirconia. The study showed that surface grinding leads to the formation of a monoclinic (m) phase in the subsurface layers of ceramics, and the monoclinic phase formed after grinding undergo a reverse phase transition to the tetragonal (t) modification during subsequent short-term thermal annealing at T = 1000 °C. Recovery by thermal annealing is recommended as a mandatory procedure for XRD analysis of zirconia ceramics subjected to surface grinding.

AB - The purpose of this study was to evaluate the effect of surface grinding and thermal annealing on phase composition of the subsurface layers of zirconia ceramics sintered from ultradisperse plasma-chemical powders ZrO2 – 3 mol% Y2O3. The phase composition was determined using X-ray diffraction (XRD) analysis. The obtained results indicated that the phase composition of the sintered zirconia ceramics does not change throughout the volume and consists of tetragonal zirconia. The study showed that surface grinding leads to the formation of a monoclinic (m) phase in the subsurface layers of ceramics, and the monoclinic phase formed after grinding undergo a reverse phase transition to the tetragonal (t) modification during subsequent short-term thermal annealing at T = 1000 °C. Recovery by thermal annealing is recommended as a mandatory procedure for XRD analysis of zirconia ceramics subjected to surface grinding.

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