Features
Internally heated pressure vessels are large-volume autoclaves pressurized with an inert gas (usually argon) into which an oven is introduced. The latter allows the sample zone to reach high temperature (up to 1400°C) while the walls of the vessel remain cold. The mechanical properties of the enclosure are thus preserved, allowing very high pressures (up to 10,000 bar).
The 4000 bar IHPV can be equipped with Kanthal furnaces (Tmax = 1000°C) allowing to receive samples with a maximum size of Ø = 20 mm and L = 35 mm or Molybdenum ovens (Tmax = 1400°C) samples of Ømax = 15 mm and Lmax = 30 mm. Pressurization with a controlled Ar/H2 mixture allows the desired redox conditions to be imposed.
The 10,000 bar autoclave is equipped with a Molybdenum furnace (Tmax = 1200°C) receiving samples of Ømax = 10 mm and Lmax = 20 mm. It is presurized with pure Argon; imposing very oxidizing conditions (NNO + 3 to +5).
Skills
Phase equilibria of igneous rocks, volatile solubilities determination in silicate and/or carbonated liquids, electrical conductivity measurements, etc.
Availability :
Open to users.