Which of the following materials is not suitable as a die material for wire drawing?
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Metallurgical Engineering · all questionsMaterial Science in Metallurgy
Material Science in Metallurgy
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Match the following
| P. Nickel-silvers | 1. Alloys of tin, antimony and copper used as a bearing material |
| Q. Nitralloys | 2. Steel used for nitriding containing aluminium, chromium and molybed num |
| R. Babbits | 3. Soft magnetic material used as electromagnet |
| S. Permalloy | 4. Ternery alloys of copper, nickel and zinc with good cold formability |
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When boron (trivalent) is doped to silicon, the resulting material is
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The single most important requirement for a turbine blade material is
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The engineering stress-strain curve for a ceramic material is
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As mercury is cooled from room temperature to 3 K, its electrical behaviour changes from that of
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The material in which there is conduction primarily by holes is
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Match each application in Group 1 with a material in Group 2.
| Group 1 | Group 2 |
| P. Cores for electric motor | 1. Y-Fe2O3 particles |
| Q. stripe on credit cards | 2. Barium titanate |
| R. Permanent magnets | 3. COsSm intermetallic compound |
| S. Multilayer capacitors | 4. Grain oriented silicon steel |
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Which one of the following alloy systems exhibits complete solid solubility?
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Match the properties in Group 1 with the metals in Group 2.
| Group 1 | Group 2 |
| P. Ferromagnetism | 1. Nb |
| Q. Superconductivity | 2. Fe |
| R. Diamagnetism | 3. Cu |
| S. Antiferromagnetism | 4. Cr |
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