Recent developments in real-time X-ray diffraction analysis in combinationwith infrared thermography: application to monitoring of mechanical-activation self-propagating high-temperature synthesis (MASHS reaction) in FeAl and MoSi2 systems

The mechanical Activation Self-propagating High-temperature Synthesis (MASH S) processing is a new way to produce nanocrystalline iron aluminide or mol ybdenum disilicide compounds. This kind of reaction has been investigated i n situ using the Time Resolved X-Ray Diffraction (TRXDR), with an X-ray syn chrotron beam, coupled to an infrared thermography to follow in resolved ti me structure transformation and temperature evolution. With short acquisiti on times, it has been possible to observe several steps before obtaining co mpound and to reveal the mechanical activation effect versus a classical SH S process.