Title of article
Pressure-induced transformations in crystalline and vitreous
Author/Authors
Michael L. and Oelker، نويسنده , , Erin N. and Harish Bhat، نويسنده , , M. and Soignard، نويسنده , , Emmanuel and Yarger، نويسنده , , Jeffery L.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
4
From page
1940
To page
1943
Abstract
Structural transitions in crystalline and vitreous PbGeO3 were studied at pressures up to 20 GPa. Crystalline PbGeO3 was observed to undergo a pressure-induced amorphization between 12–18 GPa. Vitreous PbGeO3 was found to exhibit an amorphous-to-amorphous transition in a similar pressure range. The structural and thermal properties of the pressure-cycled PbGeO3 materials were further studied with high-energy x-ray diffraction and differential scanning calorimetry. The properties were then compared to those of thermally quenched glass and ball-milled PbGeO3 samples. The structure of pressure-amorphized PbGeO3 was found to closely resemble that of ball-milled PbGeO3. However, the thermal properties probed by differential scanning calorimetry exhibited significant differences to those of thermally quenched PbGeO3 glass.
Keywords
A. Disordered systems , D. Phase transitions
Journal title
Solid State Communications
Serial Year
2009
Journal title
Solid State Communications
Record number
1766076
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