Composite Ceramics Based on Nanostructured Refractory Oxide Whiskers
Advances in Materials
Volume 3, Issue 5, October 2014, Pages: 33-37
Received: Jun. 14, 2014; Accepted: Jul. 3, 2014; Published: Oct. 10, 2014
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Authors
Tatyana Mikhailovna Ulyanova, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus, 9/1, Surganov st. Minsk, 220072, Belarus
Petr Alexandrovich Vitiaz, Presidium of National Academy of Sciences of Belarus, 66, av. Nezavisimosti, Minsk, 220072, Belarus
Nikolai Pavlovich Krutko, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus, 9/1, Surganov st. Minsk, 220072, Belarus
Luydmila Vasil’evna Ovseenko, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus, 9/1, Surganov st. Minsk, 220072, Belarus
Alexandr Arkad’evich Shevchenok, Powder Metallurgy Institute of National Academy of Sciences of Belarus, 41, Platonov st., Minsk, 220005, Belarus
Luydmila Viktorovna Titova, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus, 9/1, Surganov st. Minsk, 220072, Belarus
Alexis Romanovich Luchenok, Powder Metallurgy Institute of National Academy of Sciences of Belarus, 41, Platonov st., Minsk, 220005, Belarus
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Abstract
In the present work the influences of thermal-baric effect in the process of nanostructured alumina and zirconia powders consolidation on structure and physical-mechanical properties of the composite ceramics have been investigated. The samples of ceramics have been prepared from nanostructured powders (ZrO2 -3 mol. % Y2O3) and Al2O3 in ratio from 100 : 0 to 20 : 80 wt. % in two ways: by static uniaxial pressing and by pulse pressing. Then part blanks were annealed in the temperature region 1560-1670 oC. During pulse process a crystal structure of samples was disordered, and monoclinic ZrO2 lattice was partially deformed. After a heat treatment of a blank the crystal structure of metal oxides was restored. Ceramics of oxide powders with content 100 - 50 wt. % PSZ synthesized at the 1100 oС possessed a higher level of properties than one of active powders prepared at the 900 oC.
Keywords
Partially Stabilized Zirconia, Alumina, Nanostructured Oxide Whiskers, Structure, Properties
To cite this article
Tatyana Mikhailovna Ulyanova, Petr Alexandrovich Vitiaz, Nikolai Pavlovich Krutko, Luydmila Vasil’evna Ovseenko, Alexandr Arkad’evich Shevchenok, Luydmila Viktorovna Titova, Alexis Romanovich Luchenok, Composite Ceramics Based on Nanostructured Refractory Oxide Whiskers, Advances in Materials. Vol. 3, No. 5, 2014, pp. 33-37. doi: 10.11648/j.am.20140305.11
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