Published May 2007 | Version v1
Journal article Metadata-only

Grain size effect on diffusion processes in superionic phases Cu1.75Se, Li0.25Cu1.75Se, and Li0.25Cu1.75S

Creators

  • 1. Bashkirskij Gosudarstvennyj Univ., Ufa (Russian Federation)

Description

Ionic conduction and chemical diffusion in Cu1.75Se, Li0.25Cu1.75Se, and Li0.25Cu1.75S at 140 - 240 deg C are studied. The ionic conduction of Cu1.75Se is shown to increase with the average grain size. With coarsening of grains, the activation energy for ionic conduction decreases in Cu1.75Se and increases in Li0.25Cu1.75S. The reasons for the diffusion effects observed in the studied materials are discussed

Abstract (Russian)

Исследована ионная проводимость и химическая диффузия в Cu1.75Se, Li0.25Cu1.75Se, Li0.25Cu1.75S в области температур 140-240 град С. Установлено, что с увеличением среднего размера зерен наблюдается рост ионной проводимости Cu1.75Se. Энергия активации ионной проводимости в Cu1.75Se понижается с укрупнением зерен, в то время как в Li0.25Cu1.75S она повышается. Обсуждаются причины наблюдаемого поведения диффузии в изученных материалах

Additional details

Additional titles

Original title (Russian)
Влияние размеров зерен на диффузионные процессы в суперионных фазах Cу

Publishing Information

Journal Title
Ehlektrokhimiya
Journal Volume
43
Journal Issue
5
Journal Page Range
p. 616-620
ISSN
0424-8570
CODEN
ELKKAX

Conference

Title
VIII Meeting Fundamental problems of solid-state ionics
Original Conference Title
VIII Soveshchanie Fundamental'nye problemy ioniki tverdogo trela
Dates
13-16 Jun 2006
Place
Chernogolovka, Moskovskaya Obl. (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
38092294
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTIVATION ENERGY; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; COPPER SELENIDES; COPPER SULFIDES; DIFFUSION; GRAIN SIZE; IONIC CONDUCTIVITY; LITHIUM SELENIDES; LITHIUM SULFIDES; SOLID SOLUTIONS; TEMPERATURE RANGE 0400-1000 K
Descriptors DEC
ALKALI METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DISPERSIONS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY; HOMOGENEOUS MIXTURES; LITHIUM COMPOUNDS; MICROSTRUCTURE; MIXTURES; PHYSICAL PROPERTIES; SELENIDES; SELENIUM COMPOUNDS; SIZE; SOLUTIONS; SULFIDES; SULFUR COMPOUNDS; SYNTHESIS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
16 refs., 3 figs., 2 tabs.