Investigation on the factors that affect the amount of metal coated in an electroplating process

Aygar, Ayşe Melis (2009) Investigation on the factors that affect the amount of metal coated in an electroplating process. other thesis, TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL.

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Abstract

The aim of this investigation is to test the factors that affect electroplating. To narrow down the topic six of these factors were selected: the amount of current, the time that the current is applied, concentration of the electrolyte, temperature, kind of solution and the oxidation state of the metal ion are the factors that were tested. The hypothesis for each factor were developed as:  The relation between the time and the mass of copper coated should be a direct proportion.  For a certain time interval, when the current applied to the electroplating cell is increased, the amount of metal that is coated should also increase.  With a concentrated electrolyte, the plated metal amount is expected to be greater compared to the one with a diluted electrolyte.  The amount of deposited metal is expected to decrease at higher temperatures.  The greatest amount of metal will be plated when copper (II) nitrate electrolyte is used.  The number of moles of metal plated will have a relation as: silver > copper > aluminum. After a series of experiments and calculations the following were concluded:  Time is directly proportional with the amount of coated metal.  If the current applied to the cell is increased, the amount of plated metal also increases in a direct proportion.  When the concentration of the electrolyte is increased, the amount of deposited metal decreases.  Temperature does not have a valid affect on the electroplating process.  Copper (II) nitrate is a more effective electrolyte than copper (II) sulphate.  The oxidation state of metal is inversely proportional with the amount of coated metal. Other than these, some other deductions about the electroplating process were reached and explained in this essay.

Item Type: Thesis (other)
Additional Information: Name of Supervisor: Mustafa Üstünışık, IB Notu: B
Uncontrolled Keywords: metal coated, electroplating process,
Subjects: Q Science > QD Chemistry
Depositing User: Kamil Çömlekçi
Date Deposited: 28 May 2009 09:10
Last Modified: 22 Feb 2011 10:59
URI: http://tedprints.tedankara.k12.tr/id/eprint/5

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