Cryogenic grinding is the process of cooling materials with liquid nitrogen before or during grinding to make them brittle and easier to pulverize.
It preserves heat-sensitive properties and produces very fine powders.
Materials that are soft, elastic or heat-sensitive are difficult to grind at room temperature. Cooling them to cryogenic temperatures with liquid nitrogen embrittles them, allowing fine and uniform grinding without heat damage.
This is widely used for spices, plastics, rubber recycling and pharmaceuticals where flavor, color or chemical integrity must be preserved.
| Aspect | Details |
|---|---|
| Branch | Mechanical Engineering (ME) |
| Topic Type | Technical Seminar / Project Report |
| Difficulty | Intermediate – Advanced |
| Best For | Final-year BTech seminars & presentations |
| Includes | Explanation, key points, FAQs & references |