GTU BE 2019 Summer Question Papers || Gujarat Technological University
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GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-V (NEW) EXAMINATION - SUMMER 2019
Subject Code: 2152109
Subject Name: Advanced Materials
Time: 02:30 PM TO 05:00 PM
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Give advantages of sol-gel technique for nano-material production. | 03 |
| (b) Describe the Gas Condensation Technique for Ultrafine Nano Particle production. | 04 | |
| (c) Define metallic glasses. Compare properties of metallic glasses with their crystalline counter parts. Mention advantages, limitations and applications of metallic glasses. | 07 | |
| Q.2 | (a) Give the classification and applications of Fe-based superalloys. | 03 |
| (b) Explain mechanism by which high strength and creep resistance are achieved in super alloys. | 04 | |
| (c) Give the composition, properties, applications and heat treatment cycle for Type-1 Ni-hard cast Iron. OR --- Content provided by FirstRanker.com --- Describe the metallurgical aspects of Titanium and its alloys including their properties and applications. | 07 | |
| Q.3 | (a) Why free cutting steel contain high sulphur content? Give typical composition of a free cutting steel. | 03 |
| (b) Why Austenitic Stainless Steel become slightly magnetic after welding? How to restore non magnetic state in welded structure? | 04 | |
| (c) What is sensitization? Discuss how Inter Granular corrosion is harmful for stainless steel. Suggest the methods to minimize it. OR Differentiate between M-type and T-type high speed tool steel. | 07 | |
| Q.4 | (a) Mention the properties and applications of Martensitic stainless steel. | 03 |
| (b) TRIP steel satisfying the requirements of automotive industry for good formable high strength steel”. Justify and comment on it. | 04 | |
| (c) What are Smart Materials? Give advantages. Mention the properties, and applications of Hastelloy. | 07 | |
| Q.5 | (a) Explain the chemical vapour deposition technique for nano-material production. Draw the necessary diagram. Give its advantages. OR --- Content provided by FirstRanker.com --- Define and Classify the composites. | 03 |
| (b) Mention the properties and applications of Inconel. | 04 | |
| (c) Define Piezoelectricity and write a note on Piezoelectric materials. Nacl or any gas does not show Piezo character. Why? Give the Properties required by biomaterials. | 07 | |
| Q.5 | (a) Define and explain biocompatibility. | 03 |
| (b) Discuss the melt spinning technique to produce the metallic glasses. | 04 | |
| (c) Define bio-materials. Describe properties and application of Ni-Ti alloy as a useful bio-material. Discuss the piston and anvil technique to produce the metallic glasses. Describe the requirements of aero-space materials. Suggest some candidate materials. | 07 |
Date: 19/06/2019
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Total Marks: 70
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