Download GTU BE/B.Tech 2018 Winter 5th Sem New 2152109 Advanced Materials Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (NEW) EXAMINATION - WINTER 2018

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Subject Code:2152109 Date:04/12/2018
Subject Name:Advanced Materials
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Explain the role of high Sulfur content in Free Cutting Steel? 03
(b) Explain the heat treatment cycle for Maraging Steel. 04

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(c) What is Stainless Steel? Which are important properties of Stainless Steel? Compare Ferritic S.S. and Martensitic S.S. 07

Q.2 (a) Explain which properties of Spring Steels are critical? 03
(b) Give a detailed classification of Tool Steels. 04
(c) What do you mean by Alloy Cast Iron? Give the composition, properties and applications of High Silicon Cast Iron. 07

OR

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(c) Give the composition, properties, applications and heat treatment cycle for Type-1 Ni-hard Cast Iron. 07

Q.3 (a) Give limitations of Magnesium to be used for engineering applications. 03
(b) Explain the strengthening mechanism behind the high temperature strength of Nickel based Superalloys. 04
(c) Describe the requirements of aero-space materials. Suggest some candidate materials with their properties. 07

OR

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Q.3 (a) Write the properties of Cobalt based Superalloys. 03
(b) Discuss the piston and anvil technique to produce the metallic glasses. 04
(c) Define amorphous alloys. Compare it with crystalline alloys. Discuss the copper mold casting technique to produce the metallic glasses. 07

Q.4 (a) Write applications of nano materials. 03
(b) What are the types of Carbon Nanotubes? Explain only with diagrams. 04

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(c) Explain the sol-gel technique for nano-material production with the help of diagram. 07

OR

Q.4 (a) Discuss the working of Piezoelectric Materials. 03
(b) Discuss the characteristics of Titanium that makes it attractive for engineering applications. 04
(c) Write a note on Magneto- rheological fluid. 07

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Q.5 (a) What is Composite? Give a detailed classification of Composites. 03
(b) Describe the requirements of Cryogenic Materials. Give probable candidate materials that meet the requirements. 04
(c) Discuss the properties and applications of Superconducting Materials. 07

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Q.5 (a) Define and explain biocompatibility. 03

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(b) Enlist the properties and applications of Hadfield Steels. 04
(c) Define bio-functionality. Describe properties and application of Ni-Ti alloy as a useful bio-material. 07

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