Phase transition kinetics of LiNi0.5Mn1.5O4 electrodes studied by in situ X-ray absorption near-edge structure and X-ray diffraction analysis

2013 ◽  
Vol 1 (35) ◽  
pp. 10442 ◽  
Author(s):  
Hajime Arai ◽  
Kenji Sato ◽  
Yuki Orikasa ◽  
Haruno Murayama ◽  
Ikuma Takahashi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Diffraction Analysis ◽  
X Ray Diffraction ◽  
Edge Structure ◽  
X Ray ◽  
Phase Transition Kinetics ◽  
X Ray Absorption ◽  
Kinetics Of

Phase Transition Analysis between LiFePO4and FePO4by In-Situ Time-Resolved X-ray Absorption and X-ray Diffraction

2013 ◽  
Vol 160 (5) ◽  
pp. A3061-A3065 ◽  
Author(s):  
Yuki Orikasa ◽  
Takehiro Maeda ◽  
Yukinori Koyama ◽  
Taketoshi Minato ◽  
Haruno Murayama ◽  
...  
Keyword(s):  
Phase Transition ◽  
X Ray Diffraction ◽  
Transition Analysis ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals In situ probing of the crystallization kinetics of rr-P3HT on single layer graphene as a function of temperature

2017 ◽  
Vol 19 (12) ◽  
pp. 8496-8503 ◽  
Author(s):  
Nicolas Boulanger ◽  
Victor Yu ◽  
Michael Hilke ◽  
Michael F. Toney ◽  
David R. Barbero
Keyword(s):  
Diffraction Analysis ◽  
Crystallization Kinetics ◽  
Single Layer ◽  
Single Layer Graphene ◽  
X Ray Diffraction ◽  
X Ray ◽  
Layer Graphene ◽  
Kinetics Of

In situ X-ray diffraction analysis of P3HT films during cooling down on both Si and G.

Synchrotron radiation in situ X-ray absorption fine structure and in situ X-ray diffraction analysis of a high-performance cobalt catalyst towards the oxygen reduction reaction

2017 ◽  
Vol 19 (45) ◽  
pp. 30749-30755
Author(s):  
Haiying Qin ◽  
Longxia Lin ◽  
Junkang Jia ◽  
Huangliang Ni ◽  
Yan He ◽  
...  
Keyword(s):  
Fine Structure ◽  
Synchrotron Radiation ◽  
Diffraction Analysis ◽  
High Performance ◽  
Cobalt Catalyst ◽  
Reduction Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Absorption

The evolution of metallic Co to Co(OH)2 and then to CoOOH during the ORR was revealed by in situ XRD combined with in situ XAFS tests.

In situ X-ray diffraction analysis of Pb(Zr0.52Ti0.48)O3 phase transition in CoFe2O4/Pb(Zr0.52Ti0.48)O3 2-2-type bilayer films

2010 ◽  
Vol 25 (S1) ◽  
pp. S45-S47
Author(s):  
Ji-Ning Wang ◽  
Wei-Li Li ◽  
Xiao-Liang Li ◽  
W. D. Fei
Keyword(s):  
Phase Transition ◽  
Diffraction Analysis ◽  
Magnetoelectric Effect ◽  
Bilayer Film ◽  
X Ray Diffraction ◽  
Si Substrate ◽  
X Ray ◽  
Bilayer Films ◽  
Tetragonal Phase Transition

A 2-2-type nanostructure bilayer film of CoFe2O4/Pb(Zr0.52Ti0.48)O3 was successfully prepared on the (111)Pt/Ti/SiO2/Si substrate. The Pb(Zr0.52Ti0.48)O3 layer in the bilayer film is (111) oriented and is a mixture of tetragonal and monoclinic phases. The results from an in situ X-ray diffraction analysis of the multiferroic bilayer film under statistic magnetic field indicate that the monoclinic-tetragonal phase transition was induced by magnetostriction of the CoFe2O4 layer. A large magnetoelectric effect was obtained probably because of the different polarization directions of the tetragonal and monoclinic phases.

In Situ Rapid Thermal Hydrogenation Pretreatment of Ti for Salicide RTA

1996 ◽  
Vol 429 ◽  
Author(s):  
K. Ando ◽  
T. Ishigami ◽  
Y. Matsubara ◽  
T. Horiuchi ◽  
S. Nishimoto
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
Diffraction Analysis ◽  
Sheet Resistance ◽  
Rapid Thermal Annealing ◽  
Titanium Silicide ◽  
Silicide Formation ◽  
X Ray Diffraction ◽  
X Ray

AbstractAn in situ rapid thermal hydrogenation (RTH) pretreatment of titanium prior to rapid thermal annealing (RTA), or RTH/RTA, is proposed as a silicide formation annealing in a CMOS self-aligned silicide (salicide) process. The in situ RTH is found to enhance silicidation, to reduce nitridation, and even to lower the resultant sheet resistance of titanium silicide.During in situ RTH (e.g., at 550°C), amorphous Ti silicide (e.g., 15-nm thick) grows selectively on Si. Furthermore, Ti nitridation during subsequent RTA (690°C, N2, 10 Torr, 30 s) is reduced depending on RTH (H2, 10 Torr, 30 s) temperature. Accordingly, for 550°C RTH and an initial Ti thickness of 15 nm, the sheet resistance obtained at the 0.27-μm-wide n+ poly-Si gate after a phase transition annealing (800°C, Ar, 10 s) was lower (11.7 Ω /□, st. dev. = 6%) than that of conventional Ti silicide (15.8 Ω/□, st. dev. = 10%). The silicidation enhancement and nitridation reduction are related to crystal structure metamorphosis or to hydrogen interstitial incorporation in the Ti layer during RTH as observed by x-ray diffraction analysis. It is concluded that in situ RTH pretreatment before RTA is very promising as a sub-quarter-micron CMOS salicide process.

scholarly journals Studies on the β → α Phase Transition Kinetics of Ti–3.5Al–5Mo–4V Alloy under Isothermal Conditions by X-ray Diffraction

Metals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 90
Author(s):  
Panpan Ge ◽  
Song Xiang ◽  
Yuanbiao Tan ◽  
Xuanming Ji
Keyword(s):  
Phase Transition ◽  
Aging Time ◽  
Solution Temperature ◽  
X Ray Diffraction ◽  
X Ray ◽  
Α Phase ◽  
Precipitate Fraction ◽  
Transformation Mechanisms ◽  
Phase Transition Kinetics ◽  
Kinetics Of

The β → α phase transition kinetics of the Ti–3.5Al–5Mo–4V alloy with two different grain sizes was investigated at the isothermal temperature of 500 °C. A method to estimate the function of the precipitate fraction of the α phase with different aging times was developed based on X-ray diffraction analysis. The value of the α precipitate fraction increased sharply at first, then increased slowly with the aging time, and finally reached equilibrium. The value of the α precipitate fraction was higher in the alloy aged for the same time at a higher solution temperature, while the size of the α precipitate was smaller at a higher solution temperature. The β → α phase transition kinetics under isothermal conditions were modeled in the theoretical frame of the Johnson–Mehl–Avrami–Kolmogorov (JMAK) theory. The kinetic parameters of JMAK deduced different transformation mechanisms. The mechanism of the phase transition in the first stage was dominated by mixed transformation mechanisms (homogeneously nucleated and acicular-grown α structure, and grain boundary-nucleated and grown α precipitate), while the second stage was the growth of the fine α precipitate, which was controlled by slow diffusion. As the aging time increased, the hardness of the Ti–3.5Al–5Mo–4V alloy increased sharply. After the hardness of the alloy reached a plateau, it began to decline. The hardness of the alloy was always higher at a higher solution temperature.

Phase transition kinetics of LiNi0.5Mn1.5O4 analyzed by temperature-controlled operando X-ray absorption spectroscopy

2016 ◽  
Vol 18 (3) ◽  
pp. 1897-1904 ◽  
Author(s):  
Ikuma Takahashi ◽  
Hajime Arai ◽  
Haruno Murayama ◽  
Kenji Sato ◽  
Hideyuki Komatsu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Low Temperatures ◽  
Reaction Scheme ◽  
X Ray ◽  
Phase Transition Kinetics ◽  
Temperature Controlled ◽  
High And Low Temperatures ◽  
X Ray Absorption ◽  
Kinetics Of ◽  
Charge Discharge

Charge–discharge reaction scheme of LiNi0.5Mn1.5O4 at high and low temperatures.

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