Pressure-induced transformations in crystalline and vitreous PbGeO3

Erin N. Oelker, M. Harish Bhat, Emmanuel Soignard, Jeffery Yarger

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1940-1943
Number of pages4
JournalSolid State Communications
Volume149
Issue number43-44
DOIs
StatePublished - Nov 2009

Fingerprint

Crystalline materials
balls
Differential scanning calorimetry
Thermodynamic properties
heat measurement
thermodynamic properties
Glass
scanning
Amorphization
glass
Structural properties
x ray diffraction
Diffraction
X rays
energy

Keywords

  • A. Disordered systems
  • D. Phase transitions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Chemistry

Cite this

Pressure-induced transformations in crystalline and vitreous PbGeO3 . / Oelker, Erin N.; Harish Bhat, M.; Soignard, Emmanuel; Yarger, Jeffery.

In: Solid State Communications, Vol. 149, No. 43-44, 11.2009, p. 1940-1943.

Research output: Contribution to journalArticle

Oelker, Erin N. ; Harish Bhat, M. ; Soignard, Emmanuel ; Yarger, Jeffery. / Pressure-induced transformations in crystalline and vitreous PbGeO3 In: Solid State Communications. 2009 ; Vol. 149, No. 43-44. pp. 1940-1943.
@article{e41a6fa40f8b4d95a62fb2cd600e3629,
title = "Pressure-induced transformations in crystalline and vitreous PbGeO3",
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",
author = "Oelker, {Erin N.} and {Harish Bhat}, M. and Emmanuel Soignard and Jeffery Yarger",
year = "2009",
month = "11",
doi = "10.1016/j.ssc.2009.07.052",
language = "English (US)",
volume = "149",
pages = "1940--1943",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
number = "43-44",

}

TY - JOUR

T1 - Pressure-induced transformations in crystalline and vitreous PbGeO3

AU - Oelker, Erin N.

AU - Harish Bhat, M.

AU - Soignard, Emmanuel

AU - Yarger, Jeffery

PY - 2009/11

Y1 - 2009/11

N2 - 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.

AB - 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.

KW - A. Disordered systems

KW - D. Phase transitions

UR - http://www.scopus.com/inward/record.url?scp=70349381528&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349381528&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2009.07.052

DO - 10.1016/j.ssc.2009.07.052

M3 - Article

AN - SCOPUS:70349381528

VL - 149

SP - 1940

EP - 1943

JO - Solid State Communications

JF - Solid State Communications

SN - 0038-1098

IS - 43-44

ER -