Download or read book A Contribution to the Study of the Reduction of UF4 to Uranium Metal written by Jovan Milosavljevich and published by . This book was released on 1961 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reduction of small charges of uranium tetrafluoride with magnesium proved to be successful. By hand-tamping of UF4- Mg blend, tap densities ranging between3.1 and 3.4 g/cc were obtained. The reduction yields for these densities ranged from 72.79 to 93.71%. In the case of machine-compacted UF4-Mg blend having tap densities from 3.58 to 3.68 g/cc, reduction yields were higher, ranging between 91.45 and 97.2%. Machine-compacted blends gave much more uniform temperature distribution curves during the preheating period, as a result of higher tap densities. The best yields were obtained by firing a machine- compacted blend containing 5% Mg excess at a furnace temperature of 650 deg C, giving an average crude metal yield of 96.3%. However, the high carbon content of 174 ppm in the crude uranium biscuits obtained by compacts reduction, as a result of hydrocarbon binder presence, appeared to be a disadvantage. Attempts were also made to demonstrate the initiation of the reduction reaction at temperatures lower than 500 deg C by taking x-ray-diffraction patterns of the samples of the UF4-Mg charges heated up to various temperatures.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Thermodynamics of Uranium written by Ingmar Grenthe and published by Elsevier Science & Technology. This book was released on 1992 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive overview on the chemical thermodynamics of those elements that are of particular importance in the safety assessment of radioactive waste disposal systems. This is the first volume in a series of critical reviews to be published on this subject. The book provides an extensive compilation of chemical thermodynamic data for uranium. A description of procedures for activity corrections and uncertainty estimates is given. A critical discussion of data needed for nuclear waste management assessments, including areas where significant gaps of knowledge exist is presented. A detailed inventory of chemical thermodynamic data for inorganic compounds and complexes of uranium is listed. Data and their uncertainty limits are recommended for 74 aqueous complexes and 199 solid and 31 gaseous compounds containing uranium, and on 52 aqueous and 17 solid auxiliary species containing no uranium. The data are internally consistent and compatible with the CODATA Key Values. The book contains a detailed discussion of procedures used for activity factor corrections in aqueous solution, as well as including methods for making uncertainty estimates.

Download or read book Summary Technical Report for the Period written by and published by . This book was released on 1965-07 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Yellow Cake and Uranium Fluorides written by International Atomic Energy Agency and published by . This book was released on 1980 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Fuel Processing written by and published by . This book was released on 1963 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry of Uranium written by Joseph Jacob Katz and published by . This book was released on 1958 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Jener Publications written by Joint Establishment for Nuclear Energy Research (Netherlands and Norway) and published by . This book was released on 1952 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Uranium Metallurgy Uranium process metallurgy written by Walter D. Wilkinson and published by . This book was released on 1962 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reducing the Use of Highly Enriched Uranium in Civilian Research Reactors written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-02-12 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued presence of highly enriched uranium (HEU) in civilian installations such as research reactors poses a threat to national and international security. Minimization, and ultimately elimination, of HEU in civilian research reactors worldwide has been a goal of U.S. policy and programs since 1978. Today, 74 civilian research reactors around the world, including 8 in the United States, use or are planning to use HEU fuel. Since the last National Academies of Sciences, Engineering, and Medicine report on this topic in 2009, 28 reactors have been either shut down or converted from HEU to low enriched uranium fuel. Despite this progress, the large number of remaining HEU-fueled reactors demonstrates that an HEU minimization program continues to be needed on a worldwide scale. Reducing the Use of Highly Enriched Uranium in Civilian Research Reactors assesses the status of and progress toward eliminating the worldwide use of HEU fuel in civilian research and test reactors.

Download or read book Sources Effects and Risks of Ionizing Radiation United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR 2016 Report written by United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and published by United Nations. This book was released on 2017-04-25 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the levels and effects of exposure to ionizing radiation. Scientific findings underpin radiation risk evaluation and international protection standards. This report comprises a report with two underpinning scientific annexes. The first annex recapitulates and clarifies the philosophy of science as well as the scientific knowledge for attributing observed health effects in individuals and populations to radiation exposure, and distinguishes between that and inferring risk to individuals and populations from an exposure. The second annex reviews the latest thinking and approaches to quantifying the uncertainties in assessments of risk from radiation exposure, and illustrates these approaches with application to examples that are highly pertinent to radiation protection.

Download or read book Uranium Metallurgy written by Walter D. Wilkinson and published by . This book was released on 1962 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: V. 1. Uranium process metallurgy. -- v. 2. Uranium corrosion and alloys.

Download or read book Uranium Production Technology written by Charles D. Harrington and published by . This book was released on 1959 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of High Enriched Uranium for Peaceful Purposes written by International Atomic Energy Agency and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses high enriched uranium (HEU) management of declared excesses, non-proliferation programmes and options for the use of HEU stockpiles. Also addressed are the influence of low enriched uranium derived from surplus HEU on the global market for uranium, technical issues associated with utilization and the disposition of HEU.

Download or read book Encyclopedia of Physical Science and Technology written by Robert A. Meyers and published by . This book was released on 1992 with total page 1394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Physical Science and Technology contains in-depth presentations on all of today's critical technology areas, including: Materials synthesis and processing Electronic and photonic materials synthesis and processing Electronic and photonic materials Ceramics Composites High performance metals and alloys Flexible computer-integrated manufacturing Intelligent process equipment Micro- and nano-fabrication Software Microelectronics and opto-electronics High performance computing and networking High definition imaging and displays Sensors and signal processing Data storage and peripherals Computer simulation and modeling Aeronautics Surface transportation technologies Energy technologies Pollution remediation and waste management These technologies were specified as critical by a thirteen-member National Critical Technologies panel composed of government and private-sector members and chaired by chemist William D. Phillips. The Encyclopedia of Physical Science and Technology contains in-depth first-principle and applications descriptions of all the major emerging technologies in the physical sciences, inlcluding: Advanced materials Advanced semiconductor devices Artificial intelligence Digital imaging technology Flexible computer-integrated manufacturing High-density data storage High-performance computing Opto-electronics Sensor technology Superconductors The completely revised and updated Second Edition includes the following contributions: Thirty-one from the University of California that cover subjects ranging from nuclear energy, materials, mathematics, astronomy, and computers to anti-ballistic missile defense systems and laser applications Eighteen from the AT&T Bell Laboratories that cover communications disciplines, such as digital speech processing, telecommunications switching, and optical fibers Eleven from NASA that cover astronomy, atmospheric sciences, and space flight Nine from the University of Illinois that cover subjects ranging from manufacturing process technology and scientific information services to environmental data acquisition and very large scale integration (VLSI design) Eight from United States Navy Research Centers that cover x-ray lasers and telecommunications through non-linear optics and fluid dynamics Eight from the California Institute of Technology that cover astronomy, space sciences, and parallel computing Eight from the University of Colorado that cover subjects ranging from atomic physics ad geochemistry to telecommunications and the materials for microcircuitry Seven from the Electric Power Research Institute that cover power generation systems and air pollution Six from Cornell University that cover the solar system, bioprocess engineering, lasers, and dynamics Countries participating in the preparation of the Encyclopedia include: 76% United States institutions and 24% foreign institutions 12% with the European Economic Community (EEC)--7% of the contributors are from the United Kingdom, 3% are from Germany, and 1% are from Austria 1% Israel, France, and Japan 7% at institutions in Canada--the combination of the United States and Canada accounts for 83% of the contributions The author-institution community includes contributions from a total of eighteen countries--the United States, the United Kingdom, Canada, Germany, France, Israel, Japan, Austria, EEC institutions, Australia, Spain, the Netherlands, India, Korea, New Zealand, Sweden, Switzerland, and Italy The number of articles contributed by each country (excluding the United States) are: 49--the United Kingdom 46--Canada 22--Germany 9--France 7--Israel 7--Japan 5--Austria 2--EEC institutions 2--Australia 2--Spain 2--Netherlands 1--India 1--Korea 1--Norway 1--New Zealand 1--Sweden 1--Switzerland 1--Italy SUBJECT