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| # | Top Down Approach | Bottom Up Approach |
|---|---|---|
| 1 | It involves the particle size reduction to nano size | This involves the growth of nanoparticles from atomic size particles. |
| 2 | The process is used only for hard, brittle materials | The process is used for gas, liquids and solids as well. |
| 3 | All particles of the precursor may not break down to the required particle size. | More control over particle size. |
| 4 | The nanocrystalline materials prepared by this process maybe contaminated by milling tools and atmosphere. | Less chances of contaminations. |
| 5 | Ex. Ball Milling, | Ex. Sol gel method, Gas condensation method |
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Shared publicly - 2019-08-23 00:00:00
Don’t want your columns to simply stack in some grid tiers? Use a combination of different classes for each tier as needed. See the example below for a better idea of how it all works.
Shared publicly - 2019-08-24 00:00:00
For grids that are the same from the smallest of devices to the largest, use the .col and .col-* classes. Specify a numbered class when you need a particularly sized column; otherwise, feel free to stick to
Shared publicly - 2023-02-28 11:09:52
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Shared publicly - 2023-02-28 10:48:10
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