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Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
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Real time observation of GeSi/Si(001) island shrinkage due to surface alloying during Si capping

C Lang1, S Kodambaka, F M Ross

  • 1Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom.

Physical Review Letters
|December 13, 2006
PubMed

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Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
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