3 research outputs found
A fixed point theorem in strictly convex b-fuzzy metric spaces
The main motivation for this paper is to investigate the fixed point property for non-expansive mappings defined on -fuzzy metric spaces. First, following the idea of S. JeΕ‘iΔ's result from 2009, we introduce convex, strictly convex and normal structures for sets in -fuzzy metric spaces. By using topological methods and these notions, we prove the existence of fixed points for self-mappings defined on -fuzzy metric spaces satisfying a nonlinear type condition. This result generalizes and improves many previously known results, such as W. Takahashi's result on metric spaces from 1970. A representative example illustrating the main result is provided
Πffect of electrodeposition parameters on structure, magnetic and electrical properties of iron, nickel and tungsten nanostructured deposite
ΠΡΠΏΠΈΡΠΈΠ²Π°Π½ ΡΠ΅ ΡΡΠΈΡΠ°Ρ ΠΊΠΈΠ½Π΅ΡΠΈΡΠΊΠΈΡ
ΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠ° Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° Π½Π° ΡΠΈΡ
ΠΎΠ² Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈ ΡΠ°ΡΡΠ°Π²,
ΡΡΡΡΠΊΡΡΡΡ ΠΈ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΡ. ΠΠΎΡΠ΅Π΄ ΡΠΈΠ½ΡΠ΅Π·Π΅ ΠΈ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·Π°ΡΠΈΡΠ΅ Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
Π΅Π»Π΅ΠΊΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, ΠΈΡΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½ΠΎ ΡΠ΅ ΠΏΡΠ°ΡΠ΅Π½ ΠΈ Π΅ΡΠ΅ΠΊΠ°Ρ
ΡΠΎΠΏΠ»ΠΎΡΠ½ΠΎΠ³ Π΄Π΅ΡΡΡΠ²Π° Π½Π° ΡΡΡΡΠΊΡΡΡΠ½Ρ ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΡΡ ΠΈ ΠΎΠ΄ΡΠ°Π· ΠΏΡΠΎΡΠ΅ΡΠ° ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΡΠ΅ Π½Π°
ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠΊΠ°, Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½Π° ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½Π° ΡΠ²ΠΎΡΡΡΠ²Π°.
Π£ΡΡΠ°Π½ΠΎΠ²ΡΠ΅Π½Π΅ ΡΡ ΠΎΠΏΡΠΈΠΌΠ°Π»Π½Π΅ Π²ΡΠ΅Π΄Π½ΠΎΡΡΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠ° Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅ Π·Π° Π΄ΠΎΠ±ΠΈΡΠ°ΡΠ΅
Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, ΡΠ½Π°ΠΏΡΠ΅Π΄ Π·Π°Π΄Π°ΡΠΈΡ
ΡΠΈΠ·ΠΈΡΠΊΠΈΡ
ΠΈ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈΡ
ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»Π½ΠΎ ΡΠ΅ ΠΈΡΠΏΠΈΡΠ°Π½ ΠΈ ΡΠ΅ΠΎΡΠΈΡΡΠΊΠΈ ΠΎΠ±ΡΠ°ΡΡΠ΅Π½ ΡΡΠΈΡΠ°Ρ pH,
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ ΠΈ ΡΠ°ΡΡΠ°Π²Π° ΡΠ°ΡΡΠ²ΠΎΡΠ° ΠΈ Π΅ΡΠ΅ΠΊΠ°Ρ Π³ΡΡΡΠΈΠ½Π΅ ΡΡΡΡΡΠ΅ ΡΠ°Π»ΠΎΠΆΠ΅ΡΠ° Π½Π° Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈ
ΡΠ°ΡΡΠ°Π², ΡΠ°Π·Π½Ρ ΡΡΡΡΠΊΡΡΡΡ ΠΈ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΡ Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ΅ Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ
Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°. Π£ΡΡΠ°Π½ΠΎΠ²ΡΠ΅Π½Π° ΡΠ΅ ΠΊΠΎΡΠ΅Π»Π°ΡΠΈΡΠ° ΡΡΡΡΠΊΡΡΡΠ° β ΡΠ²ΠΎΡΡΡΠ²Π° Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½Π΅
Π»Π΅Π³ΡΡΠ΅. ΠΡΠΏΠΈΡΠΈΠ²Π°Π½ ΡΠ΅ Π΅ΡΠ΅ΠΊΠ°Ρ ΡΡΡΡΠΊΡΡΡΠ΅ Π½Π° Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½Π° ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½Π° ΡΠ²ΠΎΡΡΡΠ²Π°.
Π£ ΡΠΈΡΡ ΠΏΠΎΠ±ΠΎΡΡΠ°ΡΠ° ΡΠ²ΠΎΡΡΡΠ°Π²Π° Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°,
Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΡ ΠΎΠ΄Π³ΡΠ΅Π²Π°Π½ΠΈ Π½Π° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°ΠΌΠ° ΠΈ
ΠΌΠ»Π΅Π²Π΅Π½ΠΈ Ρ ΡΠΏΠ΅ΡΠΈΡΠ°Π»Π½ΠΈΠΌ ΠΌΠ»ΠΈΠ½ΠΎΠ²ΠΈΠΌΠ°,ΡΠ· ΡΠΈΠΌΡΠ»ΡΠ°Π½ΠΎ ΠΏΡΠ°ΡΠ΅ΡΠ΅ ΠΏΡΠΎΠΌΠ΅Π½Π° ΡΠΈΡ
ΠΎΠ²ΠΈΡ
ΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
, ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠΊΠΈΡ
, Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΈΡ
ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π°.
ΠΠ°Π»Π²Π°Π½ΠΎΡΡΠ°ΡΡΠΊΠΎΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ½ΠΈΠΌΠ°Π½Π΅ ΡΡ ΠΏΠΎΠ»Π°ΡΠΈΠ·Π°ΡΠΈΠΎΠ½Π΅ ΠΊΡΠΈΠ²Π΅ ΠΊΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅ Π½ΠΈΠΊΠ»Π°,
Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° ΠΈ ΡΠ΅Π°ΠΊΡΠΈΡΠ΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ° ΠΏΡΠΈ ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΠΌ ΡΠ°ΡΡΠ°Π²ΠΈΠΌΠ° ΠΈ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°ΠΌΠ° ΡΠ°ΡΡΠ²ΠΎΡΠ°. Π‘Π°ΡΡΠ°Π² Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ Π»Π΅Π³ΡΡΠ΅ ΠΎΠ΄ΡΠ΅ΡΠ΅Π½ ΡΠ΅
ΠΊΠ»Π°ΡΠΈΡΠ½ΠΎΠΌΠ°Π½Π°Π»ΠΈΡΠΈΡΠΊΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ, Π°ΡΠΎΠΌΡΠΊΠΎΠΌ Π°ΠΏΡΠΎΡΠΏΡΠΈΠΎΠ½ΠΎΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΈ EDS β ΠΎΠΌ.
ΠΠ° Π±Π°Π·ΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½Π΅ Π±ΡΠ·ΠΈΠ½Π΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ° ΠΈ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΎΠ³ ΡΠ°ΡΡΠ°Π²Π° Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ°, ΠΎΠ΄ΡΠ΅ΡΠ΅Π½Π΅ ΡΡ ΠΏΠ°ΡΡΠΈΡΠ°Π»Π½Π΅ ΠΏΠΎΠ»Π°ΡΠΈΠ·Π°ΡΠΈΠΎΠ½Π΅ ΠΊΡΠΈΠ²Π΅ ΠΊΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅
Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° ΠΈ ΡΠ΅Π°ΠΊΡΠΈΡΠ΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ°...The effect of kinetics and operating electrodeposition parameters of nanostructured Ni,
Fe, W alloys on their chemical composition, structure and morphology was
investigated.In addition of synthesis and characterization of obtained electrodeposited
Ni, Fe, W alloys, the effect of annealing on strucural relaxation as well as on the
mechanical, electrical and magnetic properties has been also investigated.
Optimal electrodeposition parameters for generating Ni, Fe,W alloyswith advanced
physical and chemical characteristics has been determined.The effect of pH,
temperature and solution composition as well as the effect of depostition current
density on chemical composition, phase structure and morphology of Ni, Fe, W
deposites, were experimentally investigated and theoretical explained. A correlation of
structure β nanostructured alloy properties has been determined. The effect of structure
on electrical and magnetic properties was investigated.
In order to improve the properties of electrodeposited Ni, Fe, W alloys, deposits were
annealed at different temperature and milled in special mills. The changes of their
structural, mechanical, electrical and magnetic properties wererecorded.
The polarization curves of Ni, Fe, W codeposition and hydrogen evolution reaction, at
different composition and temperature solution were recorded by galvanostatic
methods. Composition of obtained alloy was determined by analytical analysis and both
atomic apsorption and EDS methods. Based on the measured values of hydrogen
evolution rate and chemical composition of obtained alloy deposites, the partial
polarization curves of codeposition Ni, Fe, W and hydrogen evolution reaction were
determined..
Πffect of electrodeposition parameters on structure, magnetic and electrical properties of iron, nickel and tungsten nanostructured deposite
ΠΡΠΏΠΈΡΠΈΠ²Π°Π½ ΡΠ΅ ΡΡΠΈΡΠ°Ρ ΠΊΠΈΠ½Π΅ΡΠΈΡΠΊΠΈΡ
ΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠ° Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° Π½Π° ΡΠΈΡ
ΠΎΠ² Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈ ΡΠ°ΡΡΠ°Π²,
ΡΡΡΡΠΊΡΡΡΡ ΠΈ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΡ. ΠΠΎΡΠ΅Π΄ ΡΠΈΠ½ΡΠ΅Π·Π΅ ΠΈ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·Π°ΡΠΈΡΠ΅ Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
Π΅Π»Π΅ΠΊΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, ΠΈΡΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½ΠΎ ΡΠ΅ ΠΏΡΠ°ΡΠ΅Π½ ΠΈ Π΅ΡΠ΅ΠΊΠ°Ρ
ΡΠΎΠΏΠ»ΠΎΡΠ½ΠΎΠ³ Π΄Π΅ΡΡΡΠ²Π° Π½Π° ΡΡΡΡΠΊΡΡΡΠ½Ρ ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΡΡ ΠΈ ΠΎΠ΄ΡΠ°Π· ΠΏΡΠΎΡΠ΅ΡΠ° ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΡΠ΅ Π½Π°
ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠΊΠ°, Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½Π° ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½Π° ΡΠ²ΠΎΡΡΡΠ²Π°.
Π£ΡΡΠ°Π½ΠΎΠ²ΡΠ΅Π½Π΅ ΡΡ ΠΎΠΏΡΠΈΠΌΠ°Π»Π½Π΅ Π²ΡΠ΅Π΄Π½ΠΎΡΡΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠ° Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅ Π·Π° Π΄ΠΎΠ±ΠΈΡΠ°ΡΠ΅
Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, ΡΠ½Π°ΠΏΡΠ΅Π΄ Π·Π°Π΄Π°ΡΠΈΡ
ΡΠΈΠ·ΠΈΡΠΊΠΈΡ
ΠΈ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈΡ
ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»Π½ΠΎ ΡΠ΅ ΠΈΡΠΏΠΈΡΠ°Π½ ΠΈ ΡΠ΅ΠΎΡΠΈΡΡΠΊΠΈ ΠΎΠ±ΡΠ°ΡΡΠ΅Π½ ΡΡΠΈΡΠ°Ρ pH,
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ ΠΈ ΡΠ°ΡΡΠ°Π²Π° ΡΠ°ΡΡΠ²ΠΎΡΠ° ΠΈ Π΅ΡΠ΅ΠΊΠ°Ρ Π³ΡΡΡΠΈΠ½Π΅ ΡΡΡΡΡΠ΅ ΡΠ°Π»ΠΎΠΆΠ΅ΡΠ° Π½Π° Ρ
Π΅ΠΌΠΈΡΡΠΊΠΈ
ΡΠ°ΡΡΠ°Π², ΡΠ°Π·Π½Ρ ΡΡΡΡΠΊΡΡΡΡ ΠΈ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΡ Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ΅ Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ
Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°. Π£ΡΡΠ°Π½ΠΎΠ²ΡΠ΅Π½Π° ΡΠ΅ ΠΊΠΎΡΠ΅Π»Π°ΡΠΈΡΠ° ΡΡΡΡΠΊΡΡΡΠ° β ΡΠ²ΠΎΡΡΡΠ²Π° Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½Π΅
Π»Π΅Π³ΡΡΠ΅. ΠΡΠΏΠΈΡΠΈΠ²Π°Π½ ΡΠ΅ Π΅ΡΠ΅ΠΊΠ°Ρ ΡΡΡΡΠΊΡΡΡΠ΅ Π½Π° Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½Π° ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½Π° ΡΠ²ΠΎΡΡΡΠ²Π°.
Π£ ΡΠΈΡΡ ΠΏΠΎΠ±ΠΎΡΡΠ°ΡΠ° ΡΠ²ΠΎΡΡΡΠ°Π²Π° Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ° Π½ΠΈΠΊΠ»Π°,
Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ°, Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΡ ΠΎΠ΄Π³ΡΠ΅Π²Π°Π½ΠΈ Π½Π° ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°ΠΌΠ° ΠΈ
ΠΌΠ»Π΅Π²Π΅Π½ΠΈ Ρ ΡΠΏΠ΅ΡΠΈΡΠ°Π»Π½ΠΈΠΌ ΠΌΠ»ΠΈΠ½ΠΎΠ²ΠΈΠΌΠ°,ΡΠ· ΡΠΈΠΌΡΠ»ΡΠ°Π½ΠΎ ΠΏΡΠ°ΡΠ΅ΡΠ΅ ΠΏΡΠΎΠΌΠ΅Π½Π° ΡΠΈΡ
ΠΎΠ²ΠΈΡ
ΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
, ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠΊΠΈΡ
, Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΈΡ
ΠΈ ΠΌΠ°Π³Π½Π΅ΡΠ½ΠΈΡ
ΡΠ²ΠΎΡΡΡΠ°Π²Π°.
ΠΠ°Π»Π²Π°Π½ΠΎΡΡΠ°ΡΡΠΊΠΎΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ½ΠΈΠΌΠ°Π½Π΅ ΡΡ ΠΏΠΎΠ»Π°ΡΠΈΠ·Π°ΡΠΈΠΎΠ½Π΅ ΠΊΡΠΈΠ²Π΅ ΠΊΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅ Π½ΠΈΠΊΠ»Π°,
Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° ΠΈ ΡΠ΅Π°ΠΊΡΠΈΡΠ΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ° ΠΏΡΠΈ ΡΠ°Π·Π»ΠΈΡΠΈΡΠΈΠΌ ΡΠ°ΡΡΠ°Π²ΠΈΠΌΠ° ΠΈ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°ΠΌΠ° ΡΠ°ΡΡΠ²ΠΎΡΠ°. Π‘Π°ΡΡΠ°Π² Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ Π»Π΅Π³ΡΡΠ΅ ΠΎΠ΄ΡΠ΅ΡΠ΅Π½ ΡΠ΅
ΠΊΠ»Π°ΡΠΈΡΠ½ΠΎΠΌΠ°Π½Π°Π»ΠΈΡΠΈΡΠΊΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ, Π°ΡΠΎΠΌΡΠΊΠΎΠΌ Π°ΠΏΡΠΎΡΠΏΡΠΈΠΎΠ½ΠΎΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΈ EDS β ΠΎΠΌ.
ΠΠ° Π±Π°Π·ΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½Π΅ Π±ΡΠ·ΠΈΠ½Π΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ° ΠΈ Ρ
Π΅ΠΌΠΈΡΡΠΊΠΎΠ³ ΡΠ°ΡΡΠ°Π²Π° Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
Π΄Π΅ΠΏΠΎΠ·ΠΈΡΠ° Π»Π΅Π³ΡΡΠ°, ΠΎΠ΄ΡΠ΅ΡΠ΅Π½Π΅ ΡΡ ΠΏΠ°ΡΡΠΈΡΠ°Π»Π½Π΅ ΠΏΠΎΠ»Π°ΡΠΈΠ·Π°ΡΠΈΠΎΠ½Π΅ ΠΊΡΠΈΠ²Π΅ ΠΊΠΎΠ΄Π΅ΠΏΠΎΠ·ΠΈΡΠΈΡΠ΅
Π½ΠΈΠΊΠ»Π°, Π³Π²ΠΎΠΆΡΠ° ΠΈ Π²ΠΎΠ»ΡΡΠ°ΠΌΠ° ΠΈ ΡΠ΅Π°ΠΊΡΠΈΡΠ΅ ΠΈΠ·Π΄Π²Π°ΡΠ°ΡΠ° Π²ΠΎΠ΄ΠΎΠ½ΠΈΠΊΠ°...The effect of kinetics and operating electrodeposition parameters of nanostructured Ni,
Fe, W alloys on their chemical composition, structure and morphology was
investigated.In addition of synthesis and characterization of obtained electrodeposited
Ni, Fe, W alloys, the effect of annealing on strucural relaxation as well as on the
mechanical, electrical and magnetic properties has been also investigated.
Optimal electrodeposition parameters for generating Ni, Fe,W alloyswith advanced
physical and chemical characteristics has been determined.The effect of pH,
temperature and solution composition as well as the effect of depostition current
density on chemical composition, phase structure and morphology of Ni, Fe, W
deposites, were experimentally investigated and theoretical explained. A correlation of
structure β nanostructured alloy properties has been determined. The effect of structure
on electrical and magnetic properties was investigated.
In order to improve the properties of electrodeposited Ni, Fe, W alloys, deposits were
annealed at different temperature and milled in special mills. The changes of their
structural, mechanical, electrical and magnetic properties wererecorded.
The polarization curves of Ni, Fe, W codeposition and hydrogen evolution reaction, at
different composition and temperature solution were recorded by galvanostatic
methods. Composition of obtained alloy was determined by analytical analysis and both
atomic apsorption and EDS methods. Based on the measured values of hydrogen
evolution rate and chemical composition of obtained alloy deposites, the partial
polarization curves of codeposition Ni, Fe, W and hydrogen evolution reaction were
determined..