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Why using ceramic coatings on steel

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Reference no: EM131768531

Question 1

The figure below shows the copper-antimony Cu-Sb phase diagram.

944_copper-antimony Cu-Sb phase diagram.jpg

Figure: copper-antimony Cu-Sb phase diagram

a) Find the chemical formula for the compound marked X (atomic weights of Cu and Sb are 63.54 and 121.75 respectively).

b) The Cu-Sb system contains 2 eutectics, 1 eutectoid, 1 peritectic and 1 peritectoid. Mark them all on the figure, write down the temperature and composition of each point, and identify the phases involved in each reaction, on cooling.

c) An alloy containing 53wt% Sb is cooled slowly to room temperature from the melt. Explain the phase changes that occur during cooling, using schematic sketches of the microstructure at key temperatures to illustrate your answer. Start writing down the unique data for weight percentage of Sb.

d) Sketch a temperature-time curve for the 95 wt% Sb alloy over the range 650 to 450oC and account for the shape of the curve.

Question 2

"To reduce wear on a steel component, a hard wear resistant ceramic coating is applied"

(a) Explain using suitable examples, what is meant by this statement.

why using ceramic coatings on steel

(b) With the aid of diagrams, illustrate three different techniques by which this could be done. Explain how a ceramic coating can be applied and discuss the advantages of the three techniques. You may use appropriate examples and references.

Verified Expert

The assignment consisted of 2 questions with sub parts. The first question was a numerical type question based on diagrams. The second question was a theoretical question to be explain using diagrams. I completed both of them along with diagrams.

Reference no: EM131768531

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inf1768531

6/19/2018 2:02:31 AM

Much appreciated, for all your assistance and it was decent involvement while conversing with the the support team. The understanding of the expert and projects team are too great when contrasted and different sites.

len1768531

12/16/2017 12:48:21 AM

The report forms the basis of the assessment using the Learning Outcomes. This assignment constitutes 40% of the grade allocated to this module Due date 3rd – 16:00 or any time before. To be submitted electronically through blackboard. You must include the cover page with your student number , the module and the date.

len1768531

12/16/2017 12:48:05 AM

By submitting electronically I confirm that this piece of submitted work is all my own work (unless indicated otherwise within the assignment) and that all references and quotations from both primary and secondary sources have been fully identified and properly acknowledged in the body of the writing, with full references at the end.

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