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High Temperatures

After the very successful 2000K ILL-type furnaces, we now prepare the future using levitation techniques with the aim to reach 3000K.

For support during operating cycles, Local Contacts, please call our technicians in charge of high-temperature equipment.

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High Temperatures

High Temperature Facilities

ILL provides 23 furnaces that are available from a pool or assigned to instruments. The maximum allowable temperatures range from 250 to 1650°C. All repairs and modifications are carried out in the High-Temperature Laboratory.

New power crate

Recently, we have designed and constructed new power crates for the resistive furnaces. They are fully automatized and much safer than the previous units. The crate has been tested by scientists on D2B and IN8. The rack behavior has been updated according to their remarks and six units are now available.

Aerodynamic levitation

In the coming years, we plan to design and build a furnace using aerodynamic levitation for reaching ultra-high temperatures (up to 3000K) and combining conductivity measurements. A few experiments have been performed with experts coming with their own equipment. Each time, two days of beam time are lost for installing, aligning and tuning the equipment. This is about the time required to carry out an experiment on a diffractometer. We propose to build a furnace which can be installed in a few hours like a cryomagnet. We also propose to design it so that it is compatible with the use of polarised beams with the aim to investigate magnetic systems.

To succeed, we will work in collaboration with experts from CNRS Orléans. However, there will still be some specific development work to perform: for increasing the size of the sample, for stabilizing the sample above the nozzle injecting the gas, for adding guiding fields and for implementing the conductivity measuring unit. A few years ago, Enderby et al. have demonstrated that by using aerodynamic levitation in conjunction with non-invasive electromagnetic measuring methods, it is possible to determine the electrical conductivity of high temperature liquids. Schnyders et al. have even extended the measurement principle to show that it is possible to simultaneously measure the electrical conductivity and the magnetic susceptibility. The basis of the method is to measure the changes in self-inductance and resistance of a coil induced when a conducting object is placed in it.

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