Question:
The following technique is most probably recommended for consolidation of nanostructured and amorphous powders:
The following technique is most probably recommended for consolidation of nanostructured and amorphous powders:
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Use Spark Plasma Sintering when working with nano or amorphous powders to avoid grain growth and retain material characteristics.
Updated On: Jun 20, 2025
- Hot pressing
- Metal injection moulding
- Cold isostatic pressing
- Spark Plasma sintering
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The Correct Option is D
Solution and Explanation
Spark Plasma Sintering (SPS) is a highly effective technique for the consolidation of nanostructured and amorphous powders.
It applies uniaxial pressure and pulsed DC current simultaneously, which enables rapid heating and sintering at relatively lower temperatures and shorter times compared to conventional methods.
This prevents grain growth and helps retain the fine nanostructure and amorphous phases of the materials being processed.
Other techniques like hot pressing or cold isostatic pressing do not provide the same level of temperature control or sintering rate, and are less effective in preserving nanoscale features.
It applies uniaxial pressure and pulsed DC current simultaneously, which enables rapid heating and sintering at relatively lower temperatures and shorter times compared to conventional methods.
This prevents grain growth and helps retain the fine nanostructure and amorphous phases of the materials being processed.
Other techniques like hot pressing or cold isostatic pressing do not provide the same level of temperature control or sintering rate, and are less effective in preserving nanoscale features.
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