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UKAEA-CCFE-PR(21)152021
The effect of ion irradiation on evolution of microstructure and hardening of beryllium with different impurity levels was investigated using TEM and nanoindentation. High purity S-65 grade and less-pure S-200-F grade were implanted by helium ions at temperatures of 50°C and 200°C. 11 different energies were used, so as to create a quasi-homog…
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UKAEA-CCFE-PR(23)892020
PULsE (Processing Unit for Laser Flash Experiments) is a software suite for processing data generated by a variety of laser flash analysis instruments. It is highly customisable and allows adjusting to the finest experimental detail, including but not limited to electromagnetic interferences, non-uniform laser heating and detection, and coupled …
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UKAEA-CCFE-PR(20)1042020
Thermal diffusivity measurements of samples transmitting thermal radiation require adjustments to the data treatment procedures in laser flash analysis. Conventionally, an unconstrained diathermic model is used. Current results show that the alternative coupled radiative-conductive models produce substantially different results — for instance,…
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UKAEA-CCFE-CP(20)012020
The United Kingdom Atomic Energy Authority are involved in the design and manufacture of the diagnostic windows for ITER. ITER is an international project, with 35 nations collaborating to design, construct and operate a prototype controlled nuclear fusion reactor in southern France. As well as providing line of sight for diagnostics, the window…
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UKAEA-CCFE-PR(19)632019
The laser flash method is highly regarded due to its applicability to a wide temperature range, from cryogenic temperatures to the melting point of refractory metals, and to extreme environments involving radioactive or hazardous materials. Although instruments implementing this method are mostly produced on a commercial basis by major manufactu…
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UKAEA-CCFE-PR(19)312019
Tungsten, a plasma-facing material for future fusion reactors, may be exposed to air during abnormal operation or accidents. Only limited information is available on the evolution of related oxide phases. This work addresses the effect of substrate orientation on structural variations of tungsten oxides. Annealing experiments in an argon-oxygen atm…
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