Grinding, sieving, and compaction of powders

In order to sieve samples, sets of sieves with increasing mesh number and made of different materials, including very inert ones, can be used. 

For the compaction of powders it is often necessary to mix the powder with a binder, to homogenize the mixture and to apply high pressure. Some powders such as Cu, Au, Ag and graphite powder may be mixed in a ratio of up to of 5 1 with the sample powder and electrically- as well as heat onductive and even vacuum-tight pellets can be obtained. To reduce the amount of sample material required, it is often sufficient just to place the sample binder mixture in the middle of 

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