Thermal Conductivity of Composites of Beryllia and Lithium Titanate
| Autor: | Dakshinamoorthy Sathiyamoorthy, R. V. Kulkarni, B. N. Rath, Chandan Danani, Santu Kaity, S. J. Ghanwat, S. Anantharaman, V.D. Alur |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Thermonuclear fusion Beryllium oxide Mechanical Engineering chemistry.chemical_element Fusion power Neutron capture chemistry.chemical_compound chemistry Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Neutron Ceramic Beryllium Composite material Lithium titanate |
| Zdroj: | Journal of Materials Engineering and Performance. 22:3455-3460 |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-013-0606-z |
| Popis: | The International Thermonuclear Experimental Reactor (ITER) is designed to demonstrate the scientific and technological feasibility of fusion power for energy purposes. Wide varieties of solid breeders and multiplier materials have been proposed for fusion blankets. Beryllium and lithium titanate (Li2TiO3) have been accepted as neutron multiplier and breeder materials, respectively. However, swelling of beryllium due to helium and tritium permeation through metallic beryllium and low thermal conductivity of lithium titanate have caused serious limitations when ITER is in the demo version. It has been well established that BeO due its highest thermal conductivity among the known ceramics, low neutron absorption cross section, and high neutron reflection cross section is a good neutron multiplier. In the present investigation, a novel ceramic single compound of BeO-Li2TiO3 was synthesized, keeping the BeO content to Li2TiO3 in the volume ratio of 80:20, 75:25, 65:35, and 55:45 with the aim of maintaining the tritium breeding ratio as more than one, and characterized for phases present by x-ray diffraction and scanning electron microscopy. |
| Databáze: | OpenAIRE |
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