Composition–structure–property relationships of CaO–MO–SiO2 (M=Mg2+, Mn2+) systems derived from micro-Raman spectroscopy

2012 ◽  
Vol 358 (23) ◽  
pp. 3096-3102 ◽  
Author(s):  
Joo Hyun Park
Keyword(s):  
Raman Spectroscopy ◽  
Structure Property ◽  
Micro Raman Spectroscopy ◽  
Structure Property Relationships ◽  
Composition Structure

On the nature of the phase transitions of aluminosilicate perrhenate sodalite

2020 ◽  
Vol 235 (6-7) ◽  
pp. 213-223
Author(s):  
Hilke Petersen ◽  
Lars Robben ◽  
Thorsten M. Gesing
Keyword(s):  
Raman Spectroscopy ◽  
Phase Transitions ◽  
Decomposition Temperature ◽  
Second Phase ◽  
Structure Property ◽  
X Ray Diffraction ◽  
Temperature Dependent ◽  
Two Phase ◽  
Structure Property Relationships ◽  
Heat Capacity Measurements

AbstractThe temperature-dependent structure-property relationships of the aluminosilicate perrhenate sodalite |Na8(ReO4)2|[AlSiO4]6 (ReO4-SOD) were analysed via powder X-ray diffraction (PXRD), Raman spectroscopy and heat capacity measurements. ReO4-SOD shows two phase transitions in the investigated temperature range (13 K < T < 1480 K). The first one at 218.6(1) K is correlated to the transition of dynamically ordered $P\overline{4}3n$ (> 218.6(1 K) to a statically disordered (<218.6(1) K) SOD template in $P\overline{4}3n$. The loss of the dynamics of the template anion during cooling causes an increase of disorder, indicated by an unusual intensity decrease of the 011-reflection and an increase of the Re-O2 bond length with decreasing temperature. Additionally, Raman spectroscopy shows a distortion of the ReO4 anion. Upon heating the thermal expansion of the sodalite cage originated in the tilt-mechanism causes the second phase transition at 442(1) K resulting in a symmetry-increase from $P\overline{4}3n$ to $Pm\overline{3}n$, the structure with the sodalites full framework expansion. Noteworthy is the high decomposition temperature of 1320(10) K.

scholarly journals Layer Shift Factor in Layered Hybrid Perovskites: Univocal Quantitative Descriptor of Composition–Structure–Property Relationships

2021 ◽  
Vol 33 (4) ◽  
pp. 1213-1217 ◽  
Author(s):  
Ekaterina I. Marchenko ◽  
Vadim V. Korolev ◽  
Artem Mitrofanov ◽  
Sergey A. Fateev ◽  
Eugene A. Goodilin ◽  
...  
Keyword(s):  
Shift Factor ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Composition Structure

A review of composition-structure-property relationships for PZT-based heterostructure capacitors

1995 ◽  
Vol 6 (1-4) ◽  
pp. 173-187 ◽  
Author(s):  
Orlando Auciello ◽  
Kenneth D. Gifford ◽  
Daniel J. Lichtenwalner ◽  
Rovindra Dat ◽  
Husam N. Al-Shareef ◽  
...  
Keyword(s):  
Structure Property ◽  
Structure Property Relationships ◽  
Composition Structure
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