Oxidation kinetics of copper: An experiment in solid state chemistry

The solid state oxidation kinetics of Pb–Sn single-phase (2.5 at. % Sn) and eutectic alloys were studied with Auger Electron Spectroscopy combined with sputter depth profiling. The single-phase samples were oxidized in air in the temperature range 22 °C to 250 °C, while the eutectic samples were oxidized from 22 °C to 175 °C. Both alloys oxidize logarithmically between 22 °C and 90 °C and parabolically at temperatures greater than 120 °C. The activation energies for the parabolic oxidation of the single-phase and eutectic alloys are 69.5 and 67.1 ± 8 kJ/mole, respectively.

Download Full-text

Kinetics of the thermal decomposition of silver permanganate: A solid-state chemistry experiment

Journal of Chemical Education ◽

10.1021/ed041p276 ◽

1964 ◽

Vol 41 (5) ◽

pp. 276 ◽

Cited By ~ 7

Author(s):

Mark K. Goldstein ◽

Ted B. Flanagan

Keyword(s):

Thermal Decomposition ◽

Solid State ◽

Solid State Chemistry ◽

Kinetics Of ◽

Chemistry Experiment

Download Full-text

Influence of praseodymium on a solid - state oxidation kinetics of Al +6%Li alloy

Materials Today Proceedings ◽

10.1016/j.matpr.2019.12.386 ◽

2020 ◽

Vol 30 ◽

pp. 408-412

Author(s):

Sh. Nazarov ◽

I. Ganiev ◽

I. Calliari ◽

A. Gafarov ◽

D. Nazarov ◽

...

Keyword(s):

Solid State ◽

Oxidation Kinetics ◽

Kinetics Of

Download Full-text

Solid-state oxidation kinetics of an yttrium-containing AK1M2 alloy

Russian Metallurgy (Metally) ◽

10.1134/s0036029517030028 ◽

2017 ◽

Vol 2017 (3) ◽

pp. 200-203

Author(s):

A. E. Berdiev ◽

I. N. Ganiev ◽

Kh. Kh. Niezov

Keyword(s):

Solid State ◽

Oxidation Kinetics ◽

Kinetics Of

Download Full-text

OXIDATION KINETICS OF ALUMINUM ALLOY AK12M2, MODIFIED BY BARIUM, IN SOLID STATE

Bulletin of the Saint Petersburg State Institute of Technology (Technical University) ◽

10.36807/1998-9849-2020-55-81-28-33 ◽

2020 ◽

Vol 55 ◽

pp. 28-33

Author(s):

Izatuiio. N. Ganiev ◽

◽

Furkatshokh Sh. Zokirov ◽

Murodali M. Sangov ◽

Asadkul E. Berdiyev ◽

...

Keyword(s):

Aluminum Alloy ◽

Solid State ◽

Oxidation Kinetics ◽

Alkaline Earth ◽

Oxidation Process ◽

Dominant Role ◽

Alkaline Earth Metals ◽

Protective Properties ◽

Initial Alloy ◽

Kinetics Of

The oxidation kinetics of the AK12M2 aluminum alloy modified to 1.0% by barium was studied using thermogravimetry method. It was shown that the addition of barium to the alloy and the increase in temperature increase the oxidation rate of the initial alloy in the solid state. The apparent activation energy of the oxidation process of the AK12M2 aluminum alloy is 127.73 kJ/mol and decreases to 71.85 kJ∕mol for the alloy with 1.0% barium. The oxidation curves of the AK12M2 aluminum alloy with barium in the solid state are described by polynomials indicating the hyperbolic mechanism of that process. The mechanism of influence of barium on the oxidability of the AK12M2 aluminum alloy was established. It lies in the fact that barium in the range of 0.3-1.0% plays a dominant role in the formation of an oxide film, which is characterized by low protective properties. Barium influence is explained by its physicochemical properties as one of the alkaline earth metals.

Download Full-text