Rapid EELS and EDS Maps of Amorphous Silicate Matrix in Paris and Acfer 094

Synthesis of magnesiowüstite nanocrystallites embedded in an amorphous silicate matrix via low energy ion implantations

Planetary and Space Science ◽

10.1016/j.pss.2021.105319 ◽

2021 ◽

pp. 105319

Author(s):

Joshua M. Young ◽

Todd A. Byers ◽

Eric J. Lang ◽

Satyabrata Singh ◽

Gary A. Glass ◽

...

Keyword(s):

Low Energy ◽

Silicate Matrix ◽

Amorphous Silicate

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Rapid Compositional EELS and EDS Mapping of Amorphous Silicate Matrix in Extraterrestrial Materials

Microscopy and Microanalysis ◽

10.1017/s1431927620024174 ◽

2020 ◽

Vol 26 (S2) ◽

pp. 3208-3210

Author(s):

Kenta Ohtaki ◽

John Bradley ◽

Hope Ishii ◽

Jim Ciston ◽

Karen Bustillo

Keyword(s):

Silicate Matrix ◽

Amorphous Silicate ◽

Extraterrestrial Materials

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Formation of nanoscale sodium dodecahydro-closo- dodecaborate Na2[B12H12] on silicate matrix surface

Доклады Академии наук ◽

10.31857/s0869-5652484141-43 ◽

2019 ◽

Vol 484 (1) ◽

pp. 41-43

Author(s):

E. A. Malinina ◽

V. K. Skachkova ◽

I. V. Kozerozhets ◽

V. V. Avdeeva ◽

L. V. Goeva ◽

...

Keyword(s):

Phase Composition ◽

Ammonium Salt ◽

Liquid Glass ◽

Silicate Matrix ◽

X Ray Diffraction ◽

X Ray ◽

Salt Sample ◽

Matrix Surface

The method of nanoscaled sodium dodecahydro-closo-dodecaborate Na2[B12H12] synthesis is presented. The composite is heated to 200°C to yield the desired product, forming with the introduction of triethyl- ammonium salt [Et3NH]2[B12H12] into the silicate matrix of a sodium liquid glass. The morphology and phase composition of the synthesized sample are studied through SEM and X-ray diffraction methods, in comparison to those of a standard salt sample Na2[B12H12]. Based on the obtained data, the sample under study is an amorphous composite, on the surface of which nanoscale crystals of Na2[B12H12] form.

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The aqueous alteration of GEMS-like amorphous silicate in a chondritic micrometeorite by Antarctic water

Geochimica et Cosmochimica Acta ◽

10.1016/j.gca.2020.11.006 ◽

2021 ◽

Vol 293 ◽

pp. 399-421

Author(s):

M.D. Suttle ◽

L. Folco ◽

M.J. Genge ◽

I.A. Franchi ◽

F. Campanale ◽

...

Keyword(s):

Antarctic Water ◽

Aqueous Alteration ◽

Amorphous Silicate

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Porous Alumina Silicate Matrix Gubka for Solidification of 137Cs Strip Product

MRS Proceedings ◽

10.1557/proc-985-0985-nn11-02 ◽

2006 ◽

Vol 985 ◽

Cited By ~ 1

Author(s):

Albert Aloy ◽

Alexander Strelnikov ◽

Vyacheslav Essimantovskiy

Keyword(s):

Remote Control ◽

Radioactive Waste ◽

Inorganic Material ◽

Porous Alumina ◽

Volume Reduction ◽

Experimental Unit ◽

Silicate Matrix ◽

Khlopin Radium Institute ◽

Radium Institute ◽

Control Regime

AbstractSeparated liquid highâlevel radioactive waste (HLW) fractions, in particular, about 100 l of 137Cs strip product with activity up to ∼ 100 Ci/l (3.7 TBq/l) have been produced during the development and testing of partitioning technology and temporary stored at “V.G. Khlopin Radium Institute” (SaintâPetersburg, Russia). The benchâscale experimental unit designed for operation in the hot cell was developed for 137Cs strip product solidification with using of alumina silicate porous inorganic material (PIM) called Gubka.Conditions of saturation, drying and calcinations of the salts into Gubka pores were optimized and the operations under remote control regime were executed during tests with using of simulated strip product doped with 137Cs. The volume reduction coefficients were equal by a factor of 3.2â3.9 and 137Cs discharge into offâgas system was not detected. 137Cs leach rates from Gubka blocks after calcination at 800 Â°C were 1.0â1.5*10-3 g/m2*day.

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