Linseis Chip DSC User manual

1
How To
Handle foils
with Chip DSC
Linseis Messgeräte GmbH
Gerlach
Date: 16.09.2021

How To Handle foils with Chip DSC
2
Index
1. General information ............................................................................................................................................................ 3
2. choose the right crucible ....................................................................................................................................................... 3
2.1 diameter ........................................................................................................................................................................... 3
2.2 lid ........................................................................................................................................................................................ 3
2.3 Overview for recommended crucibles ................................................................................................................. 4
3. prepare your sample ................................................................................................................................................................ 4
3.1 cut by side cutter or scalpel ..................................................................................................................................... 4
3.2 punch out your sample .............................................................................................................................................. 4
3.3 use microtome ............................................................................................................................................................... 5
4. use the right weight for your sample ................................................................................................................................ 5

How To Handle foils with Chip DSC
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1. General information
This manual is a short description for handling foils with
the Chip DSC. Keep in mind best measuring results
require the sample to be in intimate contact with the
crucible bottom. Naturally, the best setup conditions
depends on your sample, shape, thickness, temperature
range and so on. For more Information, read the other
available instructions about software or specific manuals
for the Chip DSC.
2. choose the right crucible
2.1 diameter
o Make sure the crucible fits in your sensor (if you
want to use third party crucibles)
o The shape at the bottom must be as flat at
possible to have the best possible contact to the
sensor
o The height of the crucible shouldn’t be high to
minimize thermal gradient through the height.
o Check our recommendation at 2.3
2.2 lid
o It is recommended to use a lid while measuring
foils.
o Often the foil change its shape while heating.
This undesirably changes the sample-crucible
contact surface giving poor DSC results.
o Two of our lid types are crimped into the
crucible. Using this you can be sure, the foil is
hold down to the bottom by this lid
1
2
3
4
5
6

How To Handle foils with Chip DSC
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2.3 Overview for recommended crucibles
Name Best.-Nr. Description Picture
Al crucible for
foils with lid
302930 The most recommended crucible for measuring
foils. It is very flat with a lid that holds down the
sample when sealed.
Al crucible for
small samples
with lid
302930 The crucible with smaller shape but higher than
the others. The lid holds down the sample when
sealed.
Al crimpable
crucible 40µl with
lid
30293045 +
30293044 or
30293046
The multifunctional crucible (40µl) when you are
sure, the shape of your sample doesn’t change
while heating. Hermetic sealing possible.
Request the compatible crimp-tool for your crucible at your supplier or [e-mail]
3. prepare your sample
3.1 cut by side cutter or scalpel
o A scalpel or utility knife can be used to cut the foil sample to fit into the crucible.
o Make sure the cut pieces are small enough to fit in the crucible but large enough you have a
good contact to the bottom with just one sample layer.
o To increase sample weight it is possible to use more layers as well.
3.2 punch out your sample
o It is possible to punch out fitting circles of your foil using punching tools.
o Make sure the diameter of your punching tool fits with the diameter of your sample so they
can lay flat in your crucible.
o Using more layers of the punched foil is possible.
o Inspect the foils after punching to be sure they are not cupped in shape.

How To Handle foils with Chip DSC
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3.3 use microtome
o The third option for creating thin
film and foils is to use a microtome
o While using this professional
laboratory equipment make sure
the foil is thick enough to get
enough mass so you can detect the
transition you are looking for
o Using more layers of the cut foil is
possible.
4. use the right weight for your sample
o Use enough sample so the transition you want to see, e.g. melting or glass point is clearly
visible
o Too much sample can cause the sample lid to budge out from sample expansion while
heating.
o The right sample weight depends on thickness and density of your sample
o Recommended are ~2-5 mg for thin foils