Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Braeden M. Clark"'
Autor:
Braeden M. Clark, Priyatham Tumurugoti, Shanmugavelayutham K. Sundaram, Jake W. Amoroso, James C. Marra
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract The long-term performance, or resistance to elemental release, is the defining characteristic of a nuclear waste form. In the case of multiphase ceramic waste forms, correlating the long-term performance of multiphase ceramic waste forms in
Externí odkaz:
https://doaj.org/article/f8823b84fb08479b8d914b5029153df8
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract Compounds with the formulae CaZr1−xCexTi2O7 with x = 0.1–0.5 were synthesized by solid state reaction. Cerium was used as a surrogate for actinide elements. A transition from the 2M polymorph to the 4M polymorph (expanded unit cell due t
Externí odkaz:
https://doaj.org/article/e94f2ffcbff0465eb9567d40da2da947
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
The long-term performance, or resistance to elemental release, is the defining characteristic of a nuclear waste form. In the case of multiphase ceramic waste forms, correlating the long-term performance of multiphase ceramic waste forms in the envir
Publikováno v:
Journal of Solid State Chemistry. 246:107-112
Hollandite-rich multiphase waste form compositions processed by melt-solidification and spark plasma sintering (SPS) were characterized, compared, and validated for nuclear waste incorporation. Phase identification by x-ray diffraction (XRD) and elec
Heavy ion irradiations on synthetic hollandite-type materials: Ba1.0Cs0.3A2.3Ti5.7O16 (A=Cr, Fe, Al)
Autor:
Ping Lu, Braeden M. Clark, Ming Tang, Ying.-Bing. Jiang, S. K. Sundaram, Priyatham Tumurugoti, Jake W. Amoroso, Yongqiang Wang, James C. Marra, Cheng Sun
Publikováno v:
Journal of Solid State Chemistry. 239:58-63
The hollandite supergroup of minerals has received considerable attention as a nuclear waste form for immobilization of Cs. The radiation stability of synthetic hollandite-type compounds described generally as Ba1.0Cs0.3A2.3Ti5.7O16 (A=Cr, Fe, Al) we
Autor:
Braeden M. Clark, S. K. Sundaram
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 37:993-1000
The use of terahertz time-domain spectroscopy (THz-TDS) is presented as a non-contact method for in situ monitoring of ceramic waste forms. Single-phase materials of zirconolite (CaZrTi2O7), pyrochlore (Nd2Ti2O7), and hollandite (BaCs0.3Cr2.3Ti5.7O16
Publikováno v:
Advances in Materials Science for Environmental and Energy Technologies VI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ceda5b0c14a4d07dc12ea8bb49f4875
https://doi.org/10.1002/9781119423799.ch14
https://doi.org/10.1002/9781119423799.ch14
Publikováno v:
Applied Physics A. 123
Terahertz (THz) transmission measurements on chemically variant yttrium aluminum garnet (YAG) ceramics are described. Chemical compositions and processing parameters were varied to determine the effect of stoichiometry, density, and pore volume distr
Autor:
James C. Marra, Braeden M. Clark, Jake W. Amoroso, Priyatham Tumurugoti, S. K. Sundaram, Kyle S. Brinkman
Publikováno v:
Metallurgical and Materials Transactions E. 1:341-348
Hollandite-rich ceramic waste forms have been demonstrated to exhibit high durability while simultaneously accommodating a wide range of radionuclides in their matrices. This paper presents preliminary results on the preparation and characterization
Publikováno v:
MRS Proceedings. 1485:9-20
The sintering of tantalum carbide nanopowders by spark plasma sintering (SPS) is investigated. The washing procedure for the powders is modified from previous work to eliminate excess lithium in the powders that is left over from the synthesis proces