Heavy-ion beam analysis applied to surface characterization for material study.

Aratani, Michi

doi:10.3769/radioisotopes.37.43

Cited by 1 publication

(2 citation statements)

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“…For DTA and TGA, 100 mg of powdered glass was analyzed with a Shimadzu DTG-40 instrument, heating from 25~176 Hydrogen and deuterium distribution in the glass were examined by heavy-ion Rutherford scattering using the RIKEN heavy-ion linear accelerator (RILAC) (Nagai et al, 1987;Aratani, 1988) …”

Section: Methodsmentioning

confidence: 99%

“…The crystallization appeared to be induced by foreign impurities or defects on the substrate surface already existing prior to deposition (Wong and Angell, 1976;Aratani, 1988). In addition, much of the structural water should be contributed to produce clay minerals in the hump and spherical areas, which were regarded as network forms in the glass.…”

Section: I I Imentioning

confidence: 99%

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Structural Water in Volcanic Glass

Tazaki

Tiba²,

Aratani³

et al. 1992

Clays and clay miner.

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Abstract--High-resolution transmission electron microscopy has revealed spherical and hemispherical structures on the surface of partly hydrated volcanic and synthetic glasses. These structures contrast with the bulk of the glass in showing lattice-fringe images indicative of the early stages of crystallization. Heavyion Rutherford scattering analysis of the noncrystalline volcanic glass indicates a structural water with hydrogen and deuterium. Depth profiles show that the glass grains contain structural water without adsorbed water on the surface. The presence of structural water in volcanic glass must be of interest to the formation of primitive clays. The spherical and hemispherical structures favor production of clay precursors in the presence of water.

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Section: Methodsmentioning

confidence: 99%

Section: I I Imentioning

confidence: 99%