Helium mobility in advanced nuclear ceramics
Nuclear Instruments and Methods in Physics Reseach B
Acknowledgement I would never have been able to finish my dissertation without the guidance of my laboratory members, help from friends, and support from my family. The contributions of many different people, in their different ways, have made this possible. I would like to extend my appreciation especially to the following. I would like to express my deepest gratitude to my advisor, Dr. Patrick Trocellier, for his excellent guidance, patience, and providing me with an excellent atmosphere for
... oing research. I would like to thank Sylvain Vaubauillon, who helped me in performing ion beam analysis experiments. This research would have not been possible without his help. I would also like to thank Dr. Thomas Jourdan and Dr. Alain Barbu for helping me in explaining the results from theoritical point of view. Special thanks to my friends Daniel Brimbal and Arunodaya Bhattacharya, from whom I learnt to use transmission electron microscope (TEM). It was impossible for me to obtain, interpret and understand TEM results without their help. I would like to thank Dr. Sandrine Miro, who gave her best suggestions related to the use of AGEING Code. Many thanks to Yves Serruys, Frederic Lepretre, Herve Martin and Eric Bordas for their availability and suggestions during irradiation experiments. Thanks for being with me from beginning until now. Special thanks also goes to Thomas Loussouarn, Gihan Velisa and Daniel Brimbal for keeping very friendly and lively ambiance in the office. It would have been lonely without them. I would highly acknowledge Emilie Jouanny, who gave her best to obtain results from Raman spectroscopy. I would also like to express my gratitude to Patrick Bonnaille and Sylvie Poissionnent for their help in scanning electron microscopy and nano-indentation experiments.