Decomposition of Ni2SiO4 in an Oxygen Potential Gradient

Jeff Wolfenstine; Duane Dimos; D. L. Kohlstedt

doi:10.1111/j.1151-2916.1985.tb15325.x

Decomposition of Ni₂SiO₄ in an Oxygen Potential Gradient

Jeff Wolfenstine, Duane Dimos, D. L. Kohlstedt

Earth and Environmental Sciences-Twin Cities

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Abstract

Polycrystalline Ni₂SiO₄ was exposed to a gradient in oxygen potential at 1336°C to cause kinetic decomposition into its component oxides, NiO and SO2. At the higher‐oxygen‐potential side NiO formed, and at the lower‐oxygen‐potential side SiO₂ formed. This spatial distribution of SiO₂ and NiO is consistent with diffusion data for silicate olivines which indicate that Ni diffuses much faster than either Si or O.

Original language	English (US)
Pages (from-to)	C‐117-C‐118
Journal	Journal of the American Ceramic Society
Volume	68
Issue number	5
DOIs	https://doi.org/10.1111/j.1151-2916.1985.tb15325.x
State	Published - May 1985

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abstract = "Polycrystalline Ni2SiO4 was exposed to a gradient in oxygen potential at 1336°C to cause kinetic decomposition into its component oxides, NiO and SO2. At the higher‐oxygen‐potential side NiO formed, and at the lower‐oxygen‐potential side SiO2 formed. This spatial distribution of SiO2 and NiO is consistent with diffusion data for silicate olivines which indicate that Ni diffuses much faster than either Si or O.",

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AU - Dimos, Duane

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N2 - Polycrystalline Ni2SiO4 was exposed to a gradient in oxygen potential at 1336°C to cause kinetic decomposition into its component oxides, NiO and SO2. At the higher‐oxygen‐potential side NiO formed, and at the lower‐oxygen‐potential side SiO2 formed. This spatial distribution of SiO2 and NiO is consistent with diffusion data for silicate olivines which indicate that Ni diffuses much faster than either Si or O.

AB - Polycrystalline Ni2SiO4 was exposed to a gradient in oxygen potential at 1336°C to cause kinetic decomposition into its component oxides, NiO and SO2. At the higher‐oxygen‐potential side NiO formed, and at the lower‐oxygen‐potential side SiO2 formed. This spatial distribution of SiO2 and NiO is consistent with diffusion data for silicate olivines which indicate that Ni diffuses much faster than either Si or O.

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Decomposition of Ni₂SiO₄ in an Oxygen Potential Gradient

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