silicon dioxide


  • WordNet 3.6
    • n silicon dioxide a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
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In literature:

When heated to redness in the air it becomes converted into silicon dioxide and free selenium.
"Scientific American Supplement, No. 841, February 13, 1892" by Various
As stated in the discussion of fluorine, it is formed when hydrofluoric acid acts upon silicon dioxide or a silicate.
"An Elementary Study of Chemistry" by William McPherson

In news:

Sensory optimized titanium dioxide dispersions typically rely on dimethicone coatings and silicone carrier oils to deliver an elegant skin feel.
To create the transistors at the heart of a chip , they started with a thin wafer of elemental silicon and formed a silicon dioxide layer on top by simple thermal oxidation.

In science:

The substrates are either highly doped silicon wafers or sapphire single crystals covered with an Al layer. A gate insulator 100nm thick (silicon dioxide or alumina) enables us to measure the conductance of the films as a function of a gate voltage.
Ageing in granular aluminium insulating thin films
We have presented a detailed investigation of the Casimir interaction between the superconductor B i2S r2C aC u2O8+δ (BSCCO) and silicon dioxide with the presence of bromobenzene in between.
Repulsive Casimir force between silicon dioxide and superconductor
The reason for the discrepancy between the two cases is that the conductivity of metal is much larger than that of silicon dioxide.
Repulsive Casimir force between silicon dioxide and superconductor
Dames and coworkers271 used the 3 method to measure thermal contact resistance between silicon dioxide and single and few layer graphene.
Nanoscale Heat Transfer: from Computation to Experiment
Elasticity of α-cristobalite: a silicon dioxide with a negative Poisson’s ratio.
Limits to Poisson's ratio in isotropic materials - general result for arbitrary deformation