There are also two metastable phases of ice under pressure, both fully hydrogen-disordered; these are Ice IV and Ice XII. Crystal structure of ice I h. Dashed lines represent hydrogen …

1999年2月25日 · The structural versatility of solid water has been reinforced by the identification of a metastable, crystalline phase called ice XII (ref. 1). It was obtained by cooling liquid water …

Ice-twelve (ice XII) may be formed by heating high-density amorphous ice at a constant pressure of 0.81 GPa from 77 K to ≈ 183 K at a rate of ≥ 15 K min −1 and recovered at atmospheric …

1999年2月5日 · Molecular dynamics simulations have been performed on the newly discovered metastable ice XII. This new crystalline ice phase [C. Lobban, J.L. Finney, W.F. Kuhs, Nature …

2000年2月15日 · We present neutron powder diffraction results which give unambiguous evidence for the formation of the recently identified new crystalline ice phase [Lobban et …

Under these conditions, the crystal structure of ice XII was determined (Fig. 8) and its density was measured, which appeared rather close to that of ice IV and somewhat higher than that of...

2000年5月1日 · We present neutron powder diffraction results which give unambiguous evidence for the formation of the recently identified new crystalline ice phase [ [2]], labeled ice XII, in …

2007年7月1日 · Ice XII is a metastable, dense, crystalline phase of solid water, a type of ice. Ice XII was first reported in 1996 by C. Lobban, J.L. Finney and W.F. Kuhs and, after initial …

2000年5月1日 · We present neutron powder diffraction results which give unambiguous evidence for the formation of the recently identified new crystalline ice phase [2], labeled ice XII, in …

The structural versatility of solid water has been reinforced by the identification of a metastable, crystalline phase called ice XII (ref. 1). It was obtained by cooling liquid water to 260 K at a …