Open AccessComparison of mechanical properties of zirconia crystals partially stabilized with yttria and gadolinia
Author(s) -
A.S. Chislov,
М. А. Борик,
A. V. Kulebyakin,
Е. Е. Ломонова,
Filipp Milovich,
В. А. Мызина,
Yu. N. Parkhomenko,
P. A. Ryabochkina,
N. V. Sidorova,
N. Yu. Tabachkova
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012059
Subject(s) - materials science , fracture toughness , crystallization , indentation hardness , transmission electron microscopy , composite material , yttria stabilized zirconia , hardening (computing) , cubic zirconia , diffraction , crystallography , anisotropy , scanning electron microscope , microstructure , chemical engineering , ceramic , optics , chemistry , nanotechnology , physics , layer (electronics) , engineering
(ZrO 2 ) 0.97 (Y 2 O 3 ) 0.03 and (ZrO 2 ) 0.97 (Gd 2 O 3 ) 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.