Published December 1, 2019 | Version v1
Journal article Metadata-only

Comparison of mechanical properties of zirconia crystals partially stabilized with yttria and gadolinia

Creators

  • 1. Prokhorov General Physics Institute RAS, 119991, Vavilova st. 38, Moscow (Russian Federation)
  • 2. National University of Science and Technology (MISIS), 119049, Leninsky pr. 4, Moscow (Russian Federation)
  • 3. State Scientific-Research and Design Institute of Rare-Metal Industry "Giredmet" JSC, 119017, B. Tolmachevsky per., 5-1, Moscow (Russian Federation)
  • 4. N.P. Ogarev Mordovia State University, 430005, Bolshevistskaya st. 68, Saransk (Russian Federation)

Description

(ZrO2) 0.97(Y2O3)0.03 and (ZrO 2)0.97(Gd2O3)0.03 solid solution crystals have been grown using directional melt crystallization in cold container. The structure and phase composition of the crystals have been studied using X-ray diffraction and transmission electron microscopy. The mechanical properties of the crystals e.g. microhardness and fracture toughness have been studied with microindentation. We show that the main hardening mechanism in the 3GdSZ and 3YSZ crystals is transformation hardening. No microhardness anisotropy has been observed in the crystals. The highest fracture toughness among the crystals has been obtained for the 3GdSZ crystals in the {100} plane. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/1347/1/012059

Additional details

Identifiers

DOI
10.1088/1742-6596/1347/1/012059;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
1347
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
15. International Russian-Chinese Symposium on New Materials and Technologies
Dates
16-19 Oct 2019
Place
Sochi (Russian Federation)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53052616
Subject category
S36: MATERIALS SCIENCE; S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; CRYSTALLIZATION; CRYSTALS; FRACTURE PROPERTIES; GADOLINIUM OXIDES; MICROHARDNESS; SOLID SOLUTIONS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; GADOLINIUM COMPOUNDS; HARDNESS; HOMOGENEOUS MIXTURES; MECHANICAL PROPERTIES; MICROSCOPY; MIXTURES; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS