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Deuterium Retention and Release Behavior from Beryllium Co-Deposited Layers at Distinct Ar/D Ratio. COATINGS 2021. [DOI: 10.3390/coatings11121443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Beryllium-deuterium co-deposited layers were obtained using DC magnetron sputtering technique by varying the Ar/D2 gas mixture composition (10/1; 5/1; 2/1 and 1:1) at a constant deposition rate of 0.06 nm/s, 343 K substrate temperature and 2 Pa gas pressure. The surface morphology of the layers was analyzed using Scanning Electron Microscopy and the layer crystalline structure was analyzed by X-ray diffraction. Rutherford backscattering spectrometry was employed to determine the chemical composition of the layers. D trapping states and inventory quantification were performed using thermal desorption spectroscopy. The morphology of the layers is not influenced by the Ar/D2 gas mixture composition but by the substrate type and roughness. The increase of the D2 content during the deposition leads to the deposition of Be-D amorphous layers and also reduces the layer thickness by decreasing the sputtering yield due to the poisoning of the Be target. The D retention in the layers is dominated by the D trapping in low activation binding states and the increase of D2 flow during deposition leads to a significant build-up of deuterium in these states. Increase of deuterium flow during deposition consequently leads to an increase of D retention in the beryllium layers up to 300%. The resulted Be-D layers release the majority of their D (above 99.99%) at temperatures lower than 700 K.
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Stability of beryllium coatings deposited on carbon under annealing up to 1073 K. FUSION ENGINEERING AND DESIGN 2019. [DOI: 10.1016/j.fusengdes.2018.12.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shu X, Huang B, Yang J, Liu D, Fan H, Liao J, Yang Y, Liu N, Tang J. Fabrication and Helium Irradiation of Potassium-Doped Tungsten. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst13-734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaoyan Shu
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Bo Huang
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Jijun Yang
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Dongping Liu
- Dalian Nationalities University, School of Physics and Materials Engineering Dalian 116011, China
| | - Hongyu Fan
- Dalian Nationalities University, School of Physics and Materials Engineering Dalian 116011, China
| | - Jiali Liao
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Yuanyou Yang
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Ning Liu
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
| | - Jun Tang
- Sichuan University, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Chengdu 610064, China
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Dash T, Nayak BB, Abhangi M, Makwana R, Vala S, Jakhar S, Rao CVS, Basu TK. Preparation and Neutronic Studies of Tungsten Carbide Composite. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst13-663] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Dash
- Institute of Minerals and Materials Technology, Bhubaneswar-751013, Odisha, India
| | - B. B. Nayak
- Institute of Minerals and Materials Technology, Bhubaneswar-751013, Odisha, India
| | - M. Abhangi
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
| | - R. Makwana
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
| | - S. Vala
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
| | - S. Jakhar
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
| | - C. V. S. Rao
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
| | - T. K. Basu
- Institute for Plasma Research, Bhat, Gandhinagar-382428, India
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Lopez JM, Vega J, Dormido-Canto S, Murari A, Ramirez JM, Ruiz M, Arcas GD, JET-EFDA C. Integration and Validation of a Disruption Predictor Simulator in JET. FUSION SCIENCE AND TECHNOLOGY 2013. [DOI: 10.13182/fst12-490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. M. Lopez
- CAEND. Universidad Politécnica de Madrid, Spain
| | - J. Vega
- Asociación EURATOM CIEMAT para Fusión, Madrid, Spain
| | | | - A. Murari
- Consorzio RFX-Associazione EURATOM ENEA per la Fusione, Padova, Italy
| | | | - M. Ruiz
- CAEND. Universidad Politécnica de Madrid, Spain
| | - G. De Arcas
- CAEND. Universidad Politécnica de Madrid, Spain
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