Investigation of the percentage and the compacting pressure effect on the structural, optical and thermal properties of alumina-zeolite mixture

ABSTRACTThe thermal properties of the nanocrystalline metal Ag (n-Ag), with the average grain size of 10 run, synthesized by an inert gas condensation and in situ compacting technique under different pressures of 0.2 to 1.5 GPa were studied. The thermal stable temperature for asprepared state is 373K, above which the grain growth appears at different rates. An exothermal peak and an endothermal peak occur on the DSC curves of the n-Ag. The enthalpy of both peaks are dependent upon the compacting pressure. Tht enhancement of the specific heat in going from the polycrystalline to the nanocrystalline state varies between 5.4% and 3.6% in the temperature range of 380K to 540K. The thermal diffusivity at room temperature increases with grain growth, and approaches to the corresponding value of the polycrystalline Ag.

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Pressure effect on the structural, electronic, and thermal properties of chalcopyrite compounds MgSiAs2 and BeSiAs2

Computational Condensed Matter ◽

10.1016/j.cocom.2020.e00514 ◽

2020 ◽

Vol 25 ◽

pp. e00514

Author(s):

M. Amrani ◽

S. Ghemid ◽

H. Meradji ◽

S. Benayache ◽

Y. Megdoud ◽

...

Keyword(s):

Thermal Properties ◽

Pressure Effect

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The Effect of Compacting Pressure On Physical And Thermal Properties of Cocoa Pod Briquette

International Journal of Mechanical Engineering ◽

10.14445/23488360/ijme-v7i12p102 ◽

2020 ◽

Vol 7 (12) ◽

pp. 7-10

Author(s):

Saiful Huda ◽

I Gusti Gde Badrawada ◽

Susastriawan A A P ◽

Sri Joko Suyanto

Keyword(s):

Thermal Properties ◽

Compacting Pressure

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Structural, elastic, electronic, optical and thermal properties of cubic perovskite CsCdF3under pressure effect

The European Physical Journal Applied Physics ◽

10.1051/epjap/2010100318 ◽

2011 ◽

Vol 53 (3) ◽

pp. 30101 ◽

Cited By ~ 6

Author(s):

B. Ghebouli ◽

M. A. Ghebouli ◽

M. Fatmi

Keyword(s):

Thermal Properties ◽

Pressure Effect

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First-principle study on ScAl3C3-type LaCd3P3 phases under high pressure

Modern Physics Letters B ◽

10.1142/s0217984920503479 ◽

2020 ◽

Vol 34 (29) ◽

pp. 2050347

Author(s):

Yufen Ren ◽

Shiquan Feng ◽

Chaosheng Yuan ◽

Xuerui Cheng ◽

Zuo Li

Keyword(s):

High Pressure ◽

Optical Properties ◽

Thermal Properties ◽

First Principles ◽

High Pressures ◽

Mechanical Stability ◽

Pressure Effect ◽

First Principle ◽

First Principles Calculations ◽

Debye Temperatures

Using first-principles calculations, we investigate the structural, electronic, thermal and optical properties of hexagonal ScAl3C3-type structure LaCd3P3 under high pressure. By calculating elastic constant, the mechanical stability of LaCd3P3 at high pressures was discussed. Then, by calculating the band gap and density of states, the pressure effect on electronic properties of LaCd3P3 was discussed. By calculating longitudinal, transverse sound, mean sound velocities, and the Debye temperatures at different pressures, the effect of pressure on thermal properties of LaCd3P3 was investigated. What is more, the dielectric function [Formula: see text] and reflectivity [Formula: see text] were calculated to explore the change of optical properties of LaCd3P3 under high pressure.

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