Zobrazeno 1 - 10
of 1 102
pro vyhledávání: '"zirconolite"'
Autor:
S. G. Kovalev, S. S. Kovalev
Publikováno v:
Georesursy, Vol 25, Iss 1, Pp 95-107 (2024)
The article presents the first data on rare earth mineralization in differentiated intrusions on the western slope of the Southern Urals. When studying the mineralogy of the rocks of the Shuida, Misaelga, Ishliy and Lysogorsk complexes, minerals of r
Externí odkaz:
https://doaj.org/article/a4825d68c70147e8bcb2a829b5420fc8
Akademický článek
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Autor:
Changkun Park, Hwayoung Kim
Publikováno v:
Journal of Analytical Science and Technology, Vol 15, Iss 1, Pp 1-16 (2024)
Abstract Zirconolite is an accessary mineral occurred in the lunar basaltic and granitic rocks and contains relatively high contents of U, Th, and Pb, which is attractive for age dating. However, very few studies have reported the crystallization age
Externí odkaz:
https://doaj.org/article/fb9729b3201641cda7828955ecceb1e4
Autor:
Daniel Errandonea, Robin Turnbull, Josu Sánchez-Martín, Robert Oliva, Alfonso Muñoz, Silvana Radescu, Andres Mujica, Lewis Blackburn, Neil C. Hyatt, Catalin Popescu, Jordi Ibáñez-Insa
Publikováno v:
Results in Physics, Vol 61, Iss , Pp 107704- (2024)
We present a comparative study of the high-pressure behaviours of the nuclear waste immobilisation materials zirconolite-2M, −4M, –3O, and −3T. The materials are studied under high-pressure conditions using synchrotron powder X-ray diffraction.
Externí odkaz:
https://doaj.org/article/3a08494173ba40d683542b454d0bebba
Akademický článek
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Autor:
Sergey V. Yudintsev, Maximilian S. Nickolsky, Michael I. Ojovan, Olga I. Stefanovsky, Victor I. Malkovsky, Amina S. Ulanova, Lewis R. Blackburn
Publikováno v:
Ceramics, Vol 6, Iss 3, Pp 1573-1622 (2023)
The structural and chemical properties of zirconolite (ideally CaZrTi2O7) as a host phase for separated REE–actinide-rich wastes are considered. Detailed analysis of both natural and synthetic zirconolite-structured phases confirms that a selection
Externí odkaz:
https://doaj.org/article/0e31d9e3ff9e4cd5aaee9195a81c12ba
Publikováno v:
Ceramics, Vol 6, Iss 3, Pp 1330-1347 (2023)
Should the decision be made to immobilise the UK Pu inventory through a campaign of Hot Isostatic Pressing (HIP) in a zirconolite matrix, prior to placement in a geological disposal facility (GDF), a suite of disposability criteria must be satisfied.
Externí odkaz:
https://doaj.org/article/ff19043c4d77437298d27c4c9046a58e
Autor:
Merve Kuman, Laura J. Gardner, Lewis R. Blackburn, Martin C. Stennett, Neil C. Hyatt, Claire L. Corkhill
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 707-716 (2023)
Zirconolite is a candidate ceramic wasteform under consideration for the immobilisation of the UK civil PuO2 inventory. In the present work, a baseline dual-substituted zirconolite with the target composition (Ca0.783Gd0.017Ce0.2)(Zr0.883Gd0.017Ce0.1
Externí odkaz:
https://doaj.org/article/47915e725beb4251a06f83480312eca2
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 678-685 (2023)
Zirconolite-structured ceramics are candidate wasteform materials for the immobilisation of separated Pu. Due to the refractory properties of zirconolite and other titanates, removing residual porosity remains challenging in the final wasteform produ
Externí odkaz:
https://doaj.org/article/4fd303eef4414558adee1c985436e7e7
Autor:
Malin C. J. Dixon Wilkins, Clémence Gausse, Luke T. Townsend, Laura J. Gardner, Claire L. Corkhill
Publikováno v:
Ceramics, Vol 5, Iss 4, Pp 1035-1050 (2022)
The behaviour of Ce-containing zirconolites in hot isostatically pressed (HIPed) materials is complex, characterised by redox interactions between the metallic HIP canister that result in reduction of Ce4+ to Ce3+. In this work, a glass–ceramic of
Externí odkaz:
https://doaj.org/article/d42dba7fb98146c2a31421ba00b95f8d