Potentiostat/Galvanostat/FRA
-
Skraćeni naziv instrumenta
Potenciostat/Galvanostat/FRA
Inventarni broj
1717
Opći opis
The potentiostat is a device for precise maintenance of electrode potential between working electrode (metal sample) and solution (reference electrode immersed in a solution). By the electrochemical methods of polarization resistance, open circuit current potential, cyclic polarization, Tafel’s extrapolation, cyclic voltammetry, corrosion parameters are obtained indicating the resistance of a metal or alloy to a certain type of corrosion (general, local, atmospheric, contact, etc.).
The corrosion resistance can also be evaluated by the method of Electrochemical Impedance Spectroscopy (EIS), which is based on the AC power and circuit current response to the AC voltage or the AC current as an AC frequency function. The EIS provides
valuable informations such as electrolyte resistance, double layer thickness, charge transfer resistance at the solution/electrode phase boundary, constant phase element of
double-layer associated with adsorption, desorption, diffusion, etc.
This device enables the determination of hydrogen uptake and transfer in metals by electrochemical technique, thus obtaining important diffusion parameters based on which the resistance of metals and their alloys to the appearance of hydrogen embrittlement is estimated.Uža područja primjene
Electrochemistry
Namjena instrumenta
The electrochemical measurements of corrosion resistance of metal and their alloys
Popis usluga
Corrosion testing of metallic materials in various solutions by electrochemical procedures; Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical techniqu
Opis na stranicama zavoda/laboratorija
https://www.simet.unizg.hr/hr/znanost/katalog-opreme-i-istrazivanja-na-metalurskom-fakultetu/Katalog%20opreme%20i%20istrazivanja%20MF%202018.pdf/view
Tijelo koje je financiralo nabavku opreme
,
Project title
Environment assisted degradation of metals and adsorption on waste C-materials, project code: 124-1241565-1524
Ključne riječi
Electrochemical measurements, corrosion resistance, hydrogen diffusion coeficient, corrosion rate, pitting potential, impedance
Procijenjeni broj korisnika
authorized users are Anita Begić Hadžipašić and Sandra Brajčinović
Year of manufacture
2008
-
Ustanova en
Sveučilište u Zagrebu, Metalurški fakultet
Aleja narodnih heroja 3, SisakZavod
Department for process metallurgy
Laboratorij
Laboratory for chemistry, hydrometallurgy and corrosion testings
Grad
Sisak
Ulica i broj
Aleja narodnih heroja 3
Krilo/Kat/Soba
Ground floor, room number 5
-
Način korištenja instrumenta
, ,
Popis ovlaštenih korisnika
Prof. Anita Begid Hadžipašid, PhD
Sandra Brajčimovid, mag.eng.met. -
Ime i prezime
Anita Begić Hadžipašić
Titula
prof. PhD
E-mail
begic@simet.hr
Telefon
+385 44 533 379 (local 219)
Faks
+385 44 533 378
-
Ime i prezime
Sandra Brajčinović
Titula
Master in metallurgy
E-mail
smitic@simet.hr
Telefon
+385 44 533 379 (local 219)
Faks
+385 44 533 378
-
Model
PARSTAT 2273
Proizvođač
AMETEK
Mrežna (URL) adresa proizvođača
https://www.ametek.com/
Purchase price
235.714
Detaljne tehničke karakteristike
Technical characteristics:
2 A current maximum (20 A boosted)
100 V compliance
1.2 fA current resolution
>10 at 13th potency input impedance (typical)
< 5 pF of capacitance (typical)
10 µHZ to 1MHZ built-in analyzer for impedance
Power: 600 WPopratna i dodatna oprema
- three-electrode electrochemical cell
- cell for impedance measurements
- cell for diffusion measurements
- reference electrode (saturated calomel electrode)
- counter electrode (Pt electrode or Pt mesh)
- working electrode (test sample)
- a computer with a printer -
Slike en
Potentiostat/galvanostat Parstat 2273 - Dokumenti en
- Linkovi en
Potentiostat/galvanostat Parstat 2273