Compression of tetrahedrally bonded SiO2 liquid and silicate liquid-crystal density inversion

Details Compression of tetrahedrally bonded SiO2 liquid and silicate liquid-crystal density inversion Compression of tetrahedrally bonded SiO2 liquid and silicate liquid-crystal density inversion

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16.1403s&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Dec. 1989, p. 1403-1406. Research supported by NSF and Lawrence Livermor

Physics

10

Earth Mantle, Liquid Crystals, Monte Carlo Method, Silicates, Silicon Oxides, Chemical Evolution, Thermodynamic Properties

Scientific paper

The response of liquid SiO2 to pressure is studied with a quantitatively realistic Monte Carlo simulation. The model liquid was restricted to a four-fold Si-O coordination to compare the compression mechanisms of solid and liquid tetrahedral networks. The efficient compression of the SiO2 liquid results from a continuous restructuring of the network that does not significantly alter the mean Si-Si distance and does not require an increased coordination number.

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