K. Tkacova et al., CHANGES IN SURFACE-AREA AND COMPOSITION DURING GRINDING OF SILICON INENVIRONMENTS OF VARIOUS QUALITY, Journal of materials research, 10(11), 1995, pp. 2728-2735
Changes in particle size, surface properties, and composition brought
about by planetary grinding of silicon in air and various permittivity
liquids were investigated, Using a variety of spectroscopic technique
s (ESR, IRS, and XPS), a mechanically induced surface oxidation was pr
oved. While at grinding in air and organic liquids a part of the cente
rs originating from dangling orbitals on Si-III are preserved, the pro
perties of water-ground silicon are fully governed by the oxide surfac
e shell. The most effective particle size reduction and surface protec
tion can be reached by grinding in nonpolar liquids.