Effect of the Electrolyte Temperature and the Current Density on a Layer Microhardness Generated by the Anodic Aluminium Oxidation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F15%3A00000474" target="_blank" >RIV/75081431:_____/15:00000474 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1155/2015/659846" target="_blank" >http://dx.doi.org/10.1155/2015/659846</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1155/2015/659846" target="_blank" >10.1155/2015/659846</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the Electrolyte Temperature and the Current Density on a Layer Microhardness Generated by the Anodic Aluminium Oxidation

Popis výsledku v původním jazyce

The paper investigates the influence of the chemical composition and temperature of electrolyte, the oxidation time, voltage, and the current density on Vickers microhardness of aluminium oxide layers, at the same time.The layers were generated in the electrolytes with different concentrations of sulphuric and oxalic acids and surface current densities 1Axdm-2, 3Axdm-2, and 5Axdm-2. The electrolyte temperature varied from -1.78°C to 45.78°C. The results have showed that while increasing the electrolytetemperature at the current density of 1Axdm-2, the increase in the layer microhardness values is approximately by 66%. While simultaneously increasing themolar concentration ofH2SO4 in the electrolyte, the growth rate of the microhardness value decreases. At the current density of 3Axdm-2, by increasing the electrolyte temperature, a reduction in the microhardness of the generated layer occurs with the anodic oxidation time less than 25 min.

Název v anglickém jazyce

Effect of the Electrolyte Temperature and the Current Density on a Layer Microhardness Generated by the Anodic Aluminium Oxidation

Popis výsledku anglicky

The paper investigates the influence of the chemical composition and temperature of electrolyte, the oxidation time, voltage, and the current density on Vickers microhardness of aluminium oxide layers, at the same time.The layers were generated in the electrolytes with different concentrations of sulphuric and oxalic acids and surface current densities 1Axdm-2, 3Axdm-2, and 5Axdm-2. The electrolyte temperature varied from -1.78°C to 45.78°C. The results have showed that while increasing the electrolytetemperature at the current density of 1Axdm-2, the increase in the layer microhardness values is approximately by 66%. While simultaneously increasing themolar concentration ofH2SO4 in the electrolyte, the growth rate of the microhardness value decreases. At the current density of 3Axdm-2, by increasing the electrolyte temperature, a reduction in the microhardness of the generated layer occurs with the anodic oxidation time less than 25 min.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING

ISSN

1687-8434

e-ISSN

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Svazek periodika

vol. 2015

Číslo periodika v rámci svazku

březen

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000353479800001

EID výsledku v databázi Scopus

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