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Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
A. Perujo, S. Alberici, J. Camposilvan, F. Reiter
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 800-805
Material; Storage and Processing | doi.org/10.13182/FST92-A29846
Articles are hosted by Taylor and Francis Online.
The interaction of hydrogen isotopes with MANET (MArtensitic for NET) has been studied by a gas-evolution method in the framework of activities aimed at characterizing this steel. Temperatures in the range 573 – 873 K and loading pressures between 103 and 105 Pa have been used. In the temperature and loading pressure range studied, hydrogen and deuterium diffusivity in MANET is about two orders of magnitude higher than for AISI 316L (austenitic steel), ie in the range from 10−9 to 10−8 m2 · s−1. However, the solubility (Ks) in MANET is about an order of magnitude lower than in the austenitic steel, ie in the range 10−3 to 10−2 mol· m−3 · Pa−1/2. Changes of these properties caused by a phase change of the material at temperatures above 673 K are discussed. The hydrogen and deuterium data obtained were used to calculate the tritium solubility and diffusivity data by means of quantum-statistical theories.
