scholarly journals Neutron diffraction and gravimetric study of the iron nitriding reaction under ammonia decomposition conditions

2017 ◽  
Vol 19 (40) ◽  
pp. 27859-27865 ◽  
Author(s):  
Thomas J. Wood ◽  
Joshua W. Makepeace ◽  
William I. F. David
Keyword(s):  
Neutron Diffraction ◽  
Decomposition Reaction ◽  
Ammonia Decomposition ◽  
Nitriding Reaction

In situ neutron diffraction of the ammonia decomposition reaction over iron shows the catalyst to be Fe or Fe4N depending on the conditions.

scholarly journals Neutron diffraction and gravimetric study of the manganese nitriding reaction under ammonia decomposition conditions

2018 ◽  
Vol 20 (13) ◽  
pp. 8547-8553 ◽  
Author(s):  
Thomas J. Wood ◽  
Joshua W. Makepeace ◽  
William I. F. David
Keyword(s):  
Neutron Diffraction ◽  
Ammonia Decomposition ◽  
Nitriding Reaction ◽  
Kinetic Information

In situ neutron diffraction of ammonia decomposition over manganese reveals the structures of different nitrides and kinetic information about their formation.

Determination of Internal Stresses During Pearlite Transformation of 0.8c–1.5Mn Steel Through In-Situ Neutron Diffraction

2020 ◽  
Author(s):  
Satoshi Morooka ◽  
Nobuo Nakada ◽  
Yuhki Tsukada ◽  
Wu Gong ◽  
Takuro Kawasaki ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Internal Stresses

scholarly journals Temperature Dependence of Electrical Properties and Crystal Structure of 0.29Pb(In1/2Nb1/2)O3–0.44Pb(Mg1/3Nb2/3)O3–0.27PbTiO3Single Crystals

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Qian Li ◽  
Yun Liu ◽  
Andrew Studer ◽  
Zhenrong Li ◽  
Ray Withers ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
Electrical Properties ◽  
Dielectric Permittivity ◽  
Neutron Diffraction ◽  
Electrical Measurement ◽  
Temperature Dependent ◽  
Electromechanical Properties ◽  
Polar Order

We characterized the temperature dependent (~25–200°C) electromechanical properties and crystal structure of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3single crystals usingin situelectrical measurement and neutron diffraction techniques. The results show that the poled crystal experiences an addition phase transition around 120°C whereas such a transition is absent in the unpoled crystal. It is also found that the polar order persists above the maximum dielectric permittivity temperature at which the crystal shows a well-defined antiferroelectric behavior. The changes in the electrical properties and underlying crystal structure are discussed in the paper.

Study of tempering behavior of lath martensite using in situ neutron diffraction

2015 ◽  
Vol 107 ◽  
pp. 29-32 ◽  
Author(s):  
Z.M. Shi ◽  
W. Gong ◽  
Y. Tomota ◽  
S. Harjo ◽  
J. Li ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Lath Martensite ◽  
In Situ Neutron Diffraction

In situ neutron diffraction study of fatigue behavior of CrFeCoNiMo0.2 high entropy alloy

2021 ◽  
Vol 139 ◽  
pp. 107371
Author(s):  
Haiyan He ◽  
Bing Wang ◽  
Dong Ma ◽  
Alexandru D. Stoica ◽  
Zhenduo Wu ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Fatigue Behavior ◽  
Neutron Diffraction Study ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Neutron Diffraction

A neutron diffraction cell for studying lithium-insertion processes in electrode materials

1998 ◽  
Vol 31 (5) ◽  
pp. 823-825 ◽  
Author(s):  
Ö. Bergstöm ◽  
A. M. Andersson ◽  
K. Edström ◽  
T. Gustafsson
Keyword(s):  
Neutron Diffraction ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Current Collector ◽  
Neutron Diffraction Study ◽  
Lithium Insertion ◽  
Lithium Electrode ◽  
Extraction Processes ◽  
Li Ion

An electrochemical cell has been constructed forin situneutron diffraction studies of lithium-insertion/extraction processes in electrode materials for Li-ion batteries. Its key components are a Pyrex tube, gold plated on its inside, which functions as a current collector, and a central lithium rod, which serves as the negative electrode. The device is demonstrated here for a neutron diffraction study of lithium extraction from LiMn2O4: a mechanical Celgard©separator soaked in the electrolyte surrounds the lithium electrode. The LiMn2O4powder, mixed with electrolyte, occupies the space between separator and current collector.

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