scholarly journals Conformational Flexibility, UV−Induced Decarbonylation, and FTIR Spectra of 1-Phenyl-1,2 Propanedione in Solid Xenon and in the Low Temperature Amorphous Phase

2005 ◽  
Vol 109 (25) ◽  
pp. 5560-5570 ◽  
Author(s):  
Susy Lopes ◽  
Andrea Gómez-Zavaglia ◽  
Leszek Lapinski ◽  
Rui Fausto
Keyword(s):  
Low Temperature ◽  
Amorphous Phase ◽  
Conformational Flexibility ◽  
Ftir Spectra

The Application of X-Ray Diffraction at Elevated Temperatures to Study the Mechanism of Formation of Sodium Tripolyphosphate

1961 ◽  
Vol 5 ◽  
pp. 276-284
Author(s):  
E. L. Moore ◽  
J. S. Metcalf
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Amorphous Phase ◽  
Elevated Temperatures ◽  
Sodium Tripolyphosphate ◽  
X Ray Diffraction ◽  
Mechanism Of Formation ◽  
X Ray ◽  
Temperature Form ◽  
High Temperature Form

AbstractHigh-temperature X-ray diffraction techniques were employed to study the condensation reactions which occur when sodium orthophosphates are heated to 380°C. Crystalline Na4P2O7 and an amorphous phase were formed first from an equimolar mixture of Na2HPO4·NaH2PO4 and Na2HPO4 at temperatures above 150°C. Further heating resulted in the formation of Na5P3O10-I (high-temperature form) at the expense of the crystalline Na4P4O7 and amorphous phase. Crystalline Na5P3O10-II (low-temperature form) appears after Na5P3O10-I.Conditions which affect the yield of crystalline Na4P2O7 and amorphous phase as intermediates and their effect on the yield of Na5P3O10 are also presented.

A Low-Temperature Amorphous Phase in a Fragile Glass-Forming Substance

1996 ◽  
Vol 100 (20) ◽  
pp. 8518-8526 ◽  
Author(s):  
Itai Cohen ◽  
Alice Ha ◽  
Xiaolin Zhao ◽  
Michelle Lee ◽  
Thomas Fischer ◽  
...  
Keyword(s):  
Low Temperature ◽  
Amorphous Phase ◽  
Glass Forming ◽  
Fragile Glass

Photoluminescence of ZnO:Eu3+ Nanoflowers

2008 ◽  
Vol 8 (3) ◽  
pp. 1307-1311 ◽  
Author(s):  
Peter A. Tanner ◽  
Lixin Yu
Keyword(s):  
Low Temperature ◽  
Conduction Band ◽  
Selective Excitation ◽  
Ftir Spectra ◽  
Photoluminescence Spectra ◽  
Defect States ◽  
Hydrothermal Route ◽  
Broadband Emission ◽  
The Eu

The synthesis of ZnO:Eu3+ nanoflowers by a low-temperature hydrothermal route is described. Characterization of the materials was performed by ESEM, XRD and FTIR spectra. The 355 nm excited photoluminescence spectra at 10 K do not indicate the presence of Eu2+ or the ZnO defect states which give rise to green or red broadband emission. Excitation into the ZnO conduction band at low temperature does not give emission from Eu3+. Selective excitation of the Eu3+ emission shows that Eu3+ ions occupy a variety of different sites, of which one of them is similar to Eu3+ in C-type Eu2O3.

Low-temperature interface reactions in layered Au/Sb films:In situinvestigation of the formation of an amorphous phase

1995 ◽  
Vol 51 (3) ◽  
pp. 1791-1802 ◽  
Author(s):  
H.-G. Boyen ◽  
A. Cossy-Favre ◽  
P. Oelhafen ◽  
A. Siber ◽  
P. Ziemann ◽  
...  
Keyword(s):  
Low Temperature ◽  
Amorphous Phase ◽  
Interface Reactions

Low Temperature Nucleation of Silicon Crystal in Amorphous Phase with Synchrotron Radiation

1993 ◽  
Author(s):  
Fumio SATO ◽  
Yoshiyuki HIRANO ◽  
Katsuyuki GOTO ◽  
Jun-ichi Chikawa
Keyword(s):  
Synchrotron Radiation ◽  
Low Temperature ◽  
Amorphous Phase ◽  
Silicon Crystal

Crystalline to amorphous phase transition of tin oxide nanocrystals induced by SHI at low temperature

2012 ◽  
Author(s):  
Vijay Kumar ◽  
Deepti Pratap ◽  
Anshul Jain ◽  
D. C. Agarwal ◽  
I. Sulania ◽  
...  
Keyword(s):  
Phase Transition ◽  
Low Temperature ◽  
Amorphous Phase ◽  
Tin Oxide

Amorphous phase formation in Ni3B by low‐temperature deuterium implantation

1988 ◽  
Vol 63 (3) ◽  
pp. 722-725 ◽  
Author(s):  
L. Thomé ◽  
F. Pons ◽  
E. Ligeon ◽  
J. Fontenille ◽  
R. Danielou
Keyword(s):  
Low Temperature ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Amorphous Phase Formation

Low-temperature and high-pressure phases of a room-temperature ionic liquid and polyiodides: 1-methyl-3-propylimidazolium iodide

2018 ◽  
Vol 206 ◽  
pp. 49-60 ◽  
Author(s):  
Hiroshi Abe ◽  
Hiroaki Kishimura ◽  
Mayumi Takaku ◽  
Mai Watanabe ◽  
Nozomu Hamaya
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Low Temperature ◽  
Amorphous Phase ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid ◽  
Experimental Results

Experimental results are summarized on the P–T–m diagram. In pure [C3mim][I], amorphous phase appeared both at low-temperature and high-pressure. Stoichiometric [C3mim][I3] promotes crystallization, while non-stoichiometric [C3mim][I3.66] indicates anomalies.

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