Results 131 to 140 of about 313 (182)

Feasibility Study of a New Fabrication Method for the Li4SiO4 Pebbles

Volume 5: Advanced Reactors and Fusion Technologies; Codes, Standards, Licensing, and Regulatory Issues, 2018
In the past decades many R&D efforts have been spent in the development of a suitable Li4SiO4 fabrication method (e.g., melt spray process, graphite bed method, capillary-based microfluidic wet method etc.), nevertheless we are still far from an “industrial standard solution”.
Lo Frano, R., Puccini, M., Stefanelli, E., LUPPICHINI, MATTEO, GRIMA, CLAUDIO, Vitolo, S., Aquaro, D., Malquori, S., De Sanctis, S.   +8 more
openaire   +2 more sources

Mechanical behavior of Li4SiO4 in a blanket typical geometry

Fusion Engineering and Design, 2000
The mechanical behavior of the granular ceramic breeder material is of importance for the integrity of any solid breeder blanket concept. Finite element calculations for blanket relevant conditions are performed using methods from soil mechanics. These account for volume compaction during compression and for shear failure i.e.
L Bühler, J Reimann, E Arbogast, K Thomauske   +3 more
openaire   +1 more source

Radiation damage in pure and Al-doped Li4SiO4

Journal of Nuclear Materials, 1992
Radiation damage in Li4SiO4 and Li3.7Al0.1SiO4 irradiated with 120 MeV oxygen ions was investigated by measuring the ionic conductivity and the Raman spectra. The conductivity of Li4SiO4 in the post irradiation condition increased with the fluence in the temperature range 413 to 613 K.
K. Noda, Y. Ishii, T. Nakazawa, H. Matsui, N. Igawa, D. Vollath, H. Ohno, H. Watanabe   +7 more
openaire   +2 more sources

Mass loss of Li2TiO3 pebbles and Li4SiO4 pebbles

Fusion Engineering and Design, 2013
Abstract It has been known that water vapor is released from ceramic breeder materials into the purge gas due to desorption of adsorbed water under dry atmosphere and due to the water formation reaction under hydrogen atmosphere. However, an effect of water vapor in the purge gas to Li mass loss has not been understood.
Hideaki Kashimura, Masabumi Nishikawa, Kazunari Katayama, Shohei Matsuda, Motoki Shimozori, Satoshi Fukada, Tsuyoshi Hoshino   +6 more
openaire   +1 more source

Fabrication of Li4SiO4 pebbles by a sol–gel technique

Fusion Engineering and Design, 2010
Abstract Li4SiO4 pebbles are considered as candidate ceramic breeder materials in many blanket designs. In this work, Li4SiO4 pebbles with adequate sphericity were fabricated by a water-based sol–gel process using LiOH and SiO2 (aerosil) as the raw materials, which has not been reported for fabrication of Li4SiO4 pebbles previously. Thermal analysis,
Xiangwei Wu, Zhaoyin Wen, Xiaogang Xu, Yu Liu   +3 more
openaire   +1 more source

CO2 sorption properties of Li4SiO4 with a Li2ZrO3 coating

Journal of CO2 Utilization, 2019
Abstract The application of a CO2 sorbent which releases CO2 at a lower temperature than calcium oxide is of interest in view of reducing the operating temperature or increasing the operating pressure of the super-dry reforming process. To this end, three different CO2 sorbents based on lithium orthosilicate (Li4SiO4) were prepared and characterized:
L.C. Buelens, Hilde Poelman, Christophe Detavernier, Guy B. Marin, Vladimir V. Galvita   +4 more
openaire   +1 more source

Measurements of the effective thermal conductivity of a bed of Li4SiO4 pebbles of 0.35–0.6 mm diameter and of a mixed bed of Li4SiO4 and alu

Journal of Nuclear Materials, 1992
The Karlsruhe ceramic breeder reference design for a Demo relevant blanket is based on a concept where the breeder material is in form of a bed of a mixture of Li 4 SiO 4 pebbles in the diameter range 0.35–0.6 mm. The heat transfer parameters of this bed have been measured in an especially developed experimental apparatus.
M. Dalle Donne, A. Goraieb, G. Sordon
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Ionic conductivity of oxides based on Li4SiO4

Journal of Applied Electrochemistry, 1973
Lithium orthosilicate, Li4SiO4, and its solid solutions are a new group of solids of high ionic conductivity. Either Li or Si may be at least partially replaced by several other di-, tri- or tetra-valent cations. Highest conductivities were found for solid solutions with Si partially replaced by Ti; typical values were 10−3 to 10−4 Ω−1 cm−1 at 300°C ...
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Effect of sweep gas chemistry on vaporization of Li4SiO4

Journal of Nuclear Materials, 1995
Abstract Gas/solid equilibria in the system Li 4 SiO 4 D 2 D 2 O were studied by means of Knudsen effusion mass spectrometry. A Knudsen effusion mass spectrometer was modified to enable studies of reactions of hydrogen and/or water vapor with ceramic breeder materials.
Michio Yamawaki, Atsushi Suzuki, Masaru Yasumoto, Kenji Yamaguchi   +3 more
openaire   +1 more source

Synthesis and electrochemical properties of Li2S–B2S3–Li4SiO4

Solid State Ionics, 2006
Abstract New Li + ion-conductive glasses Li 2 S–B 2 S 3 –Li 4 SiO 4 were synthesized by rapid quenching, and they were transformed into glass ceramics by heat treatment. The heat treatment increased the ionic conductivities of the Li 4 SiO 4 -doped glasses, and the highest ionic conductivity observed in the system was 1.0 × 10 − 3 S cm − 1 at ...
Y SEINO, K TAKADA, B KIM, L ZHANG, N OHTA, H WADA, M OSADA, T SASAKI   +7 more
openaire   +1 more source