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dac_experiments:sample_preparation
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dac_experiments:sample_preparation [2018/06/25 16:28] estelle |
dac_experiments:sample_preparation [2019/02/18 10:11] |
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| - | ====== Sample preparation ====== | ||
| - | Starting material: | ||
| - | <WRAP right centeralign round box 35%> | ||
| - | {{:dac_experiments:mite-olivine.jpg?200|}} | ||
| - | Laser cut in a slice of recovered sample coated with platinum | ||
| - | </WRAP> | ||
| - | * Fine starting material should be hot-pressed in a piston cylinder apparatus, at high pressure an high temperature, in order to produce a cylindrical sintered sample of few cubic millimeter. | ||
| - | * The recovered sample should be cut in fine slices using a diamond saw or a wire saw. | ||
| - | * The slices should be polished down to 10-15 µm thickness. | ||
| - | * Both sides of the slices should coated with 100 nm of platinum. | ||
| - | * In each slices, 20 to 50 µm diameter samples are cut with a femto-second laser. | ||
| - | |||
| - | Diamond anvil cell loading: | ||
| - | * A laser-drilled rhenium foil is used as gasket. {{ :dac_experiments:sample.png?200|}} | ||
| - | * Dry MgO fine-grains are squeezed between carbide seats in order to produce 5-10 µm thick flakes that are employed as pressure medium. | ||
| - | * The sample is placed at the center of the gasket hole between the two MgO layers. | ||
dac_experiments/sample_preparation.txt · Last modified: 2019/02/18 10:11 (external edit)
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