2 Overview
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B40IB006EN-D
2 Overview
2.1 Description of the Instrument
The HTK 1200N High-Temperature Oven-Chamber
is designed for non-ambient X-ray studies from
room temperature to 1200 °C in different atmo-
spheres.
The HTK 1200N High-Temperature Oven-Chamber
can be easily adapted to most available goniome-
ters.
Due to its environmental heating the temperature
gradient in the sample is low and samples of several
mm thickness can be investigated.
The possibility of sample spinning preserves good
statistics of grain orientation distribution even if re-
crystallisation results in large-sized grains. This is
necessary for obtaining reliable diffraction informa-
tion and for subsequent data evaluation like Riet-
veld analysis.
The sample carriers can be easily exchanged and
can accommodate various flat sample forms such
as powders or bulk samples.
Thin films (on thick substrates) can also be studied
with reliably measured surface temperature due to
the environmental heating.
Sample carriers made of alumina provide high
chemical resistance.
In addition to the sample holders for flat powder
samples, a HTK 1200N Capillary Extension is avail-
able. With this extension, the HTK 1200N can be
converted into a capillary heater up to 1000 °C.
To ensure reliable operation of the HTK 1200N
High-Temperature Oven-Chamber, the instrument
must be operated with:
•
135004 CCU 1000 Combined Control Unit
•
164877 Flow controller
TIP: Please refer to Appendix Efor detailed informa-
tion
2.2 Design of the Instrument
The HTK 1200N is a heating stage for powder XRD
with a temperature range from 25 to 1200 °C.
Basically, the HTK 1200N consists of:
1. Housing with safety switch box
2. Lid
3. Sample holder flange with sample holder (sta-
tionary or spinning)
TIP: For detailed information on the materials used
in the HTK 1200N, please refer to Appendix A.
2.2.1 Housing with Safety Switch Box
Fig. 3: Main components of the sample chamber
1
X-ray window
2
Window clamp
3
Height alignment screw
4
Sample holder guiding rods
5
Sample holder flange
6
Base plate
7
Safety switch box
8
Boreholes for adapter
9
Flange fixing screws
All components of the HTK 1200N housing are
made of nickel-plated brass. Both the base plate
and the housing are water-cooled.
The sample holder is inserted through the opening
at the bottom. Two guiding rods provide for exact
centering of the sample holder flange.
At the rear of the instrument is a small safety switch
box that contains two safety switches:
•
a bi-metallic thermo-switch that shuts off the
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5
7
9
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