Journal Article Research Support, Non-U.S. Gov't 3K9958V90M Ethanol Gases X-ray diffraction bubble growth composite materials eikonal approximation gas chromatography inertia friction welding infrared imaging iterative phase retrieval non-equilibrium phase transformation phase transformation phase-contrast tomography propagation-based imaging solid oxide fuel cell stress analysis synchrotron X-rays synchrotron imaging thermal imaging time-resolved synchrotron diffraction vacuum degassing