Hydrogen exists in many as-grown oxide crystals as a ubiquitous impurity and can affect their electronic, mechanical, and optical properties [1-5]. Hydrogenic species (protons, deuterons and tritons) normally occupy stable configurations and do not diffuse until several hundred degrees above room temperautre [6,7]. In advanced energy systems, the hydrogen concentration is expected to increase dramatically when the ceramic oxide is exposed to high energy neutrons which induce different transmutation products [8]. The effects of such high levels of this impurity have not yet been investigated.
展开▼
