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[en] The nature of interactions in the compositions of stabilized ZrO₂ - rare earth chromite at 1750 deg C is clarified and the data on engineering parameters of the Zr-Cr refractory specimens are determined. The use of induction melting appeared effective for stabilization of cubic modification of ZrO₂ intended for production of conducting ceramics with high thermomechanical characteristics. 4 refs.; 5 figs.; 3 tabs

Original Title

Ogneupornye izdeliya na osnove sisetem ZrO₂-Y₂O₃(Nd₂O₃)-Cr₂O₃

Primary Subject

MATERIALS SCIENCE (B2330)

Secondary Subject

MATERIALS SCIENCE (B2342)

Record Type

Journal Article

Journal

Ogneupory i Tekhnicheskaya Keramika; ISSN 1028-0812;

; (no.8); p. 8-12

Country of publication

Russian Federation

Descriptors (DEI)

CHROMIUM OXIDES, COMPRESSION STRENGTH, CUBIC LATTICES, ELECTRIC CONDUCTIVITY, MELTING, NEODYMIUM OXIDES, OXIDATION, PHASE STUDIES, TEMPERATURE RANGE 1000-4000 K, YTTRIUM OXIDES, ZIRCONIUM OXIDES

Descriptors (DEC)

CHALCOGENIDES, CHEMICAL REACTIONS, CHROMIUM COMPOUNDS, CRYSTAL LATTICES, CRYSTAL STRUCTURE, ELECTRICAL PROPERTIES, MECHANICAL PROPERTIES, NEODYMIUM COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, PHASE TRANSFORMATIONS, PHYSICAL PROPERTIES, RARE EARTH COMPOUNDS, TEMPERATURE RANGE, TRANSITION ELEMENT COMPOUNDS, YTTRIUM COMPOUNDS, ZIRCONIUM COMPOUNDS

LanguageLanguage

Russian

Reference NumberReference Number

28072242

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Solid state reactions between components of the ZrO₂-Ln₂O₃-Cr₂O₃ system

Strakhov, V.I.; Sovestnova, O.A.; Pavlova, E.A.2007

AbstractAbstract

No abstract available

Original Title

Tverdofazovye reaktsii mezhdu komponentami sistem ZrO₂-Ln₂O₃-Cr₂O₃

Primary Subject

INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY (S37)

Source

Deposited article in VINITI RAN, No. 6463-V2007 as of 15.06.07

Record Type

Journal Article

Journal

Zhurnal Prikladnoj Khimii; ISSN 0044-4618;

; CODEN ZPKHAB; v. 80(11); p. 1933

Country of publication

Russian Federation

Descriptors (DEI)

CHEMICAL COMPOSITION, CHEMICAL REACTIONS, CHROMIUM OXIDES, CUBIC LATTICES, NEODYMIUM OXIDES, PHASE STUDIES, SAMARIUM OXIDES, SOLID SOLUTIONS, TEMPERATURE RANGE 1000-4000 K, YTTERBIUM OXIDES, YTTRIUM OXIDES, ZIRCONIUM OXIDES

Descriptors (DEC)

CHALCOGENIDES, CHROMIUM COMPOUNDS, CRYSTAL LATTICES, CRYSTAL STRUCTURE, DISPERSIONS, HOMOGENEOUS MIXTURES, MIXTURES, NEODYMIUM COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, RARE EARTH COMPOUNDS, SAMARIUM COMPOUNDS, SOLUTIONS, TEMPERATURE RANGE, TRANSITION ELEMENT COMPOUNDS, YTTERBIUM COMPOUNDS, YTTRIUM COMPOUNDS, ZIRCONIUM COMPOUNDS

LanguageLanguage

Russian

Reference NumberReference Number

39097455

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Kinetics and mechanism of some rare earth chromites formation

Sovestnova, O.A.; Strakhov, V.I.1997

AbstractAbstract

[en] The paper studies the effect of Al₂O₃, SiO₂, MgO and 3Al₂O₃x2SiO₂ on LnCrO₃ synthesis (Ln-Nd, Sm, Yb) under high temperatures. The values of activation energy of solid-phase reactions of Zn₂O₃ interaction with Cr₂O₃ are calculated. Synthesis in oxidizing medium is shown to occur mainly via one-sided diffusion of Cr³⁺ cations through reaction product layer

Original Title

Kinetika i mekhanizm obrazovaniya khromitov nekotorykh redkozemel'nykh ehlementov

Primary Subject

INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY (B1210)

Source

3 refs., 1 tab., 2 figs.

Record Type

Journal Article

Journal

Zhurnal Prikladnoj Khimii; ISSN 0044-4618;

; CODEN ZPKHAB; v. 70(11); p. 1905-1907

Country of publication

Russian Federation

Descriptors (DEI)

ACTIVATION ENERGY, CHEMICAL PREPARATION, CHEMICAL REACTION KINETICS, CHROMITES, NEODYMIUM COMPOUNDS, SAMARIUM COMPOUNDS, YTTERBIUM COMPOUNDS

Descriptors (DEC)

CHROMIUM COMPOUNDS, ENERGY, KINETICS, OXYGEN COMPOUNDS, RARE EARTH COMPOUNDS, REACTION KINETICS, SYNTHESIS, TRANSITION ELEMENT COMPOUNDS

LanguageLanguage

Russian

Reference NumberReference Number

29046482

INIS VolumeINIS Volume

INIS IssueINIS Issue

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