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Carbon nanotubes, often called the strongest material have which of the following properties?
1. high electrical and thermal conductivity.
2. very high tensile strength.
3. higher lifetime.
  • a)
    1 only
  • b)
    1 and 2 only
  • c)
    1 and 3 only
  • d)
    1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Carbon nanotubes, often called the strongest material have which of th...
They have a low lifetime. Advantages of the carbon nanotubes :
1. High electrical and thermal conductivity
2. Very high tensile strength
3. Highly flexible and elastic (~18% elongation before failure)
4. High aspect ratios
5. Good field emission
Disadvantages of carbon nanotubes:
1. Newer technology so not as much testing has been completed
2. Lower lifetime (1750 hours compared to 6000 hours for silicon tips)
3. Higher potentials required for field emission as the tubes are not so well localised so the extractor electrode must be further away
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Carbon nanotubes, often called the strongest material have which of the following properties?1. high electrical and thermal conductivity.2. very high tensile strength.3. higher lifetime.a)1 onlyb)1 and 2 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?
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