Experimental Equipment
Cold-Seal-Pressure-Vessel
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Moderate
temperature - moderate pressure device
Room: 008, IG1 Phone number of the lab: +49 (0)251 83-33497 Contact person:  Jasper
Berndt-Gerdes Technical
Details Applications Literature Links
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Technical
Details |
| Cold-seal vessels consist of a
vessel manufactured from a superalloy rod with a hole drilled almost
through the rod. The end of the vessel with the pressure seal is
outside the furnace ("cold-seal"), and is formed by a simple cone seal.
The pressure medium is water. Pressure and temperature are controlled
by pressure gauges and Ni-Cr-thermocouples. Maximum run temperature and
pressure of the Münster cold-seal pressure vessels are
800°C and 5000 bar, respectively. Advantage of the cold-seal
vessels is an accurate pressure and temperature control. Disadvantages
are inverse relationships between operating temperature und pressure
and severe limits of the working temperature range due to external
heating of the vessel. |
| Applications |
| Cold-seal pressure vessels are
work-horse upper crust machines as they easily alloy simulation of
temperatures and pressures relevant for magmatic and metamorphic
processes within the upper crust of the Earth. Research projects at our
institute are investigations of melting and differentiation of
granites, low temperature / pressure metamorphic phase relation
studies, and hydrothermal synthesis of minerals. |
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