High-pressure Brillouin scattering and elastic properties of liquid and solid nitrous oxide and carbon dioxide

1994 ◽  
Vol 98 (2) ◽  
pp. 670-673 ◽  
Author(s):  
Hiroyasu Shimizu ◽  
Hideki Sakoh ◽  
Shigeo Sasaki
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Nitrous Oxide ◽  
Elastic Properties ◽  
Brillouin Scattering

Acoustic and elastic properties of silicone oil under high pressure

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38056-38060 ◽  
Author(s):  
Xiaoxia Wang ◽  
Chen Chen ◽  
Xiaoli Huang ◽  
Jiayu Wang ◽  
Mingguang Yao ◽  
...  
Keyword(s):  
High Pressure ◽  
Elastic Properties ◽  
Silicone Oil ◽  
Brillouin Scattering ◽  
Silicone Oils ◽  
Scattering Spectra

Brillouin scattering spectra of three silicone oils with different viscosity, including two polydimethylsiloxanes (PDMS) and one polyphenylmethylsiloxane (PPMS), have been studied under high pressure.

scholarly journals Effects of Composition, Pressure, and Temperature on the Elastic Properties of SiO2–TiO2 Glasses: An Integrated Ultrasonic and Brillouin Study

Minerals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 481
Author(s):  
Murli H. Manghnani ◽  
Quentin Williams ◽  
Teruyuki Matsui ◽  
Peter C. Schultz ◽  
Charles R. Kurkjian
Keyword(s):  
High Pressure ◽  
Elastic Properties ◽  
Excellent Agreement ◽  
Diamond Anvil Cell ◽  
Brillouin Scattering ◽  
Elastic Behavior ◽  
Tio2 Content ◽  
Diamond Anvil ◽  
Raman Study ◽  
Low Pressures

We have systematically investigated the elastic properties (ρ, VP, VS, K, μ and σ) of eight SiO2–TiO2 glasses, varying in composition from 1.3 to 14.7 wt% TiO2, as a function of pressure up to 0.5 GPa by the pulse superposition (PSP) ultrasonic technique, and two compositions (1.3 and 9.4 wt% TiO2) up to ~5.7 GPa by Brillouin scattering in a diamond anvil cell. The parameters were also measured after annealing to 1020 °C. Composition–elasticity relationships, except for K and σ, are more or less linear; the annealing simply makes the relationships more uniform (less scatter). There is excellent agreement between the ultrasonic and Brillouin measurements at ambient and high pressure. The pressure-induced anomalous elastic behavior (negative dVP/dP and dK/dP) becomes more negative (more compressible) with the increasing TiO2 content. Correspondingly, the acoustic Grüneisen parameters become more negative with increases in the TiO2 content, reaching a minimum near ~8–10 wt% TiO2. The comparison of the low- and high-pressure ultrasonic and Brillouin VP and VS in two glasses (1.3 and 9.4 wt% TiO2) shows excellent agreement, defining the reversible elastic behavior at low pressures and irreversible behavior at higher pressures (≥5.7 GPa) well. This result is consistent with our previous high-pressure Raman study showing an irreversible structural change in a similar pressure range.

scholarly journals Carbon dioxide binary crystals via the thermal decomposition of RDX at high pressure

2017 ◽  
Vol 8 (7) ◽  
pp. 4872-4878 ◽  
Author(s):  
L. E. Connor ◽  
C. A. Morrison ◽  
I. D. H. Oswald ◽  
C. R. Pulham ◽  
M. R. Warren
Keyword(s):  
Carbon Dioxide ◽  
Thermal Decomposition ◽  
High Pressure ◽  
Nitrous Oxide ◽  
Binary Crystals

Binary crystals of carbon dioxide and nitrous oxide have been created from the decomposition of RDX.

High-pressure Brillouin scattering and elastic properties of liquid and solid methane

1996 ◽  
Vol 53 (1) ◽  
pp. 111-115 ◽  
Author(s):  
H. Shimizu ◽  
N. Nakashima ◽  
S. Sasaki
Keyword(s):  
High Pressure ◽  
Elastic Properties ◽  
Brillouin Scattering ◽  
Solid Methane

scholarly journals Elastic properties of GaS under high pressure by Brillouin scattering

1982 ◽  
Vol 25 (4) ◽  
pp. 2767-2775 ◽  
Author(s):  
A. Polian ◽  
J. M. Besson ◽  
M. Grimsditch ◽  
H. Vogt
Keyword(s):  
High Pressure ◽  
Elastic Properties ◽  
Brillouin Scattering

scholarly journals Elastic properties of single crystal hydrogen sulfide: A Brillouin scattering study under high pressure-temperature

2018 ◽  
Vol 124 (12) ◽  
pp. 125901 ◽  
Author(s):  
Di Zhou ◽  
Xiaoli Huang ◽  
Xin Li ◽  
Hongyu Yu ◽  
Fangfei Li ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Sulfide ◽  
Single Crystal ◽  
Elastic Properties ◽  
Brillouin Scattering ◽  
Scattering Study

Elastic properties of solids at high pressure

2015 ◽  
Vol 185 (11) ◽  
pp. 1215-1224 ◽  
Author(s):  
Yurii Kh. Vekilov ◽  
Oleg M. Krasil'nikov ◽  
Andrei V. Lugovskoy
Keyword(s):  
High Pressure ◽  
Elastic Properties

scholarly journals The degradation of cellulose in ionic mixture solutions under the high pressure of carbon dioxide

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3484-3494
Author(s):  
Sumarno ◽  
Prida Novarita Trisanti ◽  
Bramantyo Airlangga ◽  
Novi Eka Mayangsari ◽  
Agus Haryono
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Hydrothermal Process ◽  
Reducing Sugar

Cellulose processing by a hydrothermal process as well as in combination with a sonication pretreatment under a CO2 pressurization that affects the morphology and reducing sugar products.

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