Results 171 to 180 of about 691 (191)

MECHANICAL PROPERTIES AND DEHYDRATION OF Li4SiO4 PEBBLES

1993
A new concept of the Karlsruhe helium cooled ceramic breeder design is based on a mixed bed of small lithium orthosilicate pebbles of 0.1 - 0.2 mm diameter and 2 mm beryllium pebbles that serve as a neutron multiplier. Helium sweep gas flows through the bed and carries away the released tritium.
V. Schauer, M. Dalle Donne, R. Huber, B. Schmitt, G. Schumacher, H. Werle   +5 more
openaire   +1 more source

Study of adsorption and desorption of water on Li4SiO4

Journal of Nuclear Materials, 1989
Abstract Lithium orthosilicate is one of the candidate materials for tritium breeding in a fusion reactor blanket. The release of tritium from this material depends on diffusion in the bulk and on desorption from the surface of the material which is usually covered by adsorbed water.
V. Schauer, G. Schumacher
openaire   +1 more source

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

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

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

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

Effect of voltage on the AC conductivity of Li4SiO4

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1985
On montre qu'aux temperatures elevees, la conductivite de Li 4 SiO 4 depend de la tension appliquee, entre 50 et 1000 V.
J.M. Aceves, A.R. West
openaire   +1 more source

Effect of water adsorption on tritium release from Li4SiO4

Journal of Nuclear Materials, 2013
Abstract As a ceramic material proposed for tritium breeding in a fusion reactor blanket, lithium orthosilicate (Li 4 SiO 4 ) is being examined in view of the influence of water uptake on tritium release behavior. In this work, out-of-pile tritium release experiments were performed on Li 4 SiO 4 samples that were transferred and stored under ...
Chunmei Kang, Chengjian Xiao, Xiaolin Wang, Yuhui He, Jun Liu, Xiaojun Chen, Shuming Peng, Heyi Wang   +7 more
openaire   +1 more source

High-temperature CO2 sorption by Ca-doped Li4SiO4 sorbents

International Journal of Hydrogen Energy, 2016
Abstract Ca-doped Li 4 SiO 4 (LiCa) sorbent was synthesized using a solid-state reaction method. The CO 2 sorption capacity of the sorbents was thermogravimetrically analyzed in the presence of a pure CO 2 flux. The cyclic performances of the sorbents were investigated in a twin fixed-bed reactor with absorption and desorption temperatures of 700 °
Xiaoxiang Chen, Zhuo Xiong, Yadi Qin, Bengen Gong, Chong Tian, Yongchun Zhao, Junying Zhang, Chuguang Zheng   +7 more
openaire   +1 more source

Electrochemical formation of crystalline Li3VO4/Li4SiO4 solid solutions film

Solid State Ionics, 2008
Abstract Crystalline Li 3 VO 4 /Li 4 SiO 4 (LVSO) solid solution films were prepared on Pt substrate electrochemically in absolute ethyl alcohol solution at 150 °C. XRD and Raman structure analyses indicated the presence of characteristic vibrational bands for the orthorhombic structure for the samples.
Ying Tao, Danqin Yi, Jie Li
openaire   +1 more source