Phase transitions in disordered lead iron niobate: X-ray and synchrotron radiation diffraction experiments

1997 ◽  
Vol 102 (5) ◽  
pp. 347-352 ◽  
Author(s):  
Vincent Bonny ◽  
Michel Bonin ◽  
Philippe Sciau ◽  
Kurt J. Schenk ◽  
Gervais Chapuis
Keyword(s):  
Phase Transitions ◽  
Synchrotron Radiation ◽  
X Ray ◽  
Synchrotron Radiation Diffraction ◽  
Iron Niobate

Preparation and preliminary X-ray diffraction studies of a new crystal form of L-asparaginase from Escherichia coli

1999 ◽  
Vol 55 (9) ◽  
pp. 1616-1617
Author(s):  
I. Polikarpov ◽  
R. T. de Oliveira ◽  
J. Abrahão-Neto
Keyword(s):  
Escherichia Coli ◽  
Synchrotron Radiation ◽  
Crystal Form ◽  
Asymmetric Unit ◽  
Chemotherapeutic Drug ◽  
X Ray Diffraction ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters ◽  
Synchrotron Radiation Diffraction

L-Asparaginase is an enzyme which hydrolyzes asparagine to produce aspartic acid and ammonia. It is an effective chemotherapeutic drug, especially in the treatment of acute lymphoblastic leukaemia in children. The enzyme from Escherichia coli was crystallized in a new crystal form with space group C2, unit-cell parameters a = 76.3 (0), b = 134.6 (2), c = 64.8 (7) Å, β = 110.5 (1)° and a dimer in the asymmetric unit. Synchrotron-radiation diffraction data have been collected to 1.95 Å resolution.

Structural study of (Nd1.85, Ce0.15)CuO4 superconducting singlecrystal by x-ray synchrotron radiation diffraction

1991 ◽  
Vol 185-189 ◽  
pp. 543-544 ◽  
Author(s):  
P. Bordet ◽  
J.L. Hodeau ◽  
M. Marezio ◽  
D.B. McWhan ◽  
R.J. Melville ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Structural Study ◽  
X Ray ◽  
Synchrotron Radiation Diffraction

scholarly journals Hydrogen-Induced Buckling of Pd Films Deposited on Various Substrates

2015 ◽  
Vol 365 ◽  
pp. 55-62 ◽  
Author(s):  
Marián Vlček ◽  
František Lukáč ◽  
Martin Vlach ◽  
Ivan Procházka ◽  
Stefan Wagner ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Deposition Temperature ◽  
Model System ◽  
Lattice Expansion ◽  
X Ray Diffraction ◽  
Palladium Hydride ◽  
X Ray ◽  
Temperature Lattice

A Pd-H system is a model system suitable for studying interactions of hydrogen with metals. In the present work, we studied hydrogen-induced buckling of thin Pd films deposited on various substrates with different bonding strengths (sapphire, glimmer) and also the effect of deposition temperature. Lattice expansion and phase transitions were investigated by X-ray diffraction of synchrotron radiation. The influence of the substrate and microstructure of the film on the buckling process and phase transformation to palladium hydride are discussed.

Charge-density waves in Er5Ir4Si10 type compounds

2002 ◽  
Vol 12 (9) ◽  
pp. 347-350
Author(s):  
S. van Smaalen ◽  
P. Daniels ◽  
F. Galli ◽  
R. Feyerherm ◽  
E. Dudzik ◽  
...  
Keyword(s):  
Rare Earth ◽  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Charge Density ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Charge Density Waves ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Transition

X-ray diffraction with synchrotron radiation has been used to study the phase transitions in compounds M5Ir4Si10 with M a rare-earth metal. For M = Er, Ho and Er0.84Lu0.16 phase transitions have been found towards a combined commensurate/incommensurate state, that locks into a commensurate state at lower temperatures. For M = Lu and Er0.66Lu0.34 there is a single transition towards a commensurate state. The results are interpreted in terms of commensurate structural transitions that induce incommensurate CDWs.

The use of synchrotron radiation for X-ray topography of phase transitions

1975 ◽  
Vol 32 (2) ◽  
pp. 471-489 ◽  
Author(s):  
J. Bordas ◽  
A. M. Glazer ◽  
H. Hauser
Keyword(s):  
Phase Transitions ◽  
Synchrotron Radiation ◽  
X Ray

scholarly journals In situ synchrotron radiation monitoring of phase transitions during microwave heating of Al–Cu–Fe alloys

2008 ◽  
Vol 23 (1) ◽  
pp. 170-175 ◽  
Author(s):  
Sébastien Vaucher ◽  
Radu Nicula ◽  
José-Manuel Català-Civera ◽  
Bernd Schmitt ◽  
Bruce Patterson
Keyword(s):  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Microwave Heating ◽  
Nanocrystalline Alloy ◽  
Time Resolved ◽  
Microwave Exposure ◽  
Synchrotron Radiation Diffraction ◽  
Before And After ◽  
Fe Alloys

The effect of rapid microwave heating has so far been evaluated mainly by comparing the state of materials before and after microwave exposure. Yet, further progress critically depends on the ability to follow the evolution of materials during ultrafast heating in real time. We describe the first in situ time-resolved monitoring of solid-state phase transitions during microwave heating of metallic powders using wide-angle synchrotron radiation diffraction. Single-phase Al–Cu–Fe quasicrystal powders were obtained by microwave heating of nanocrystalline alloy precursors at 650 °C in <20 s.

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