Analysis of Composite Structures on Barium Titanate Fine Particles Using Synchrotron Radiation

2006 ◽  
Vol 301 ◽  
pp. 239-242 ◽  
Author(s):  
Takuya Hoshina ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Satoshi Wada ◽  
Masatomo Yashima ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Barium Titanate ◽  
Size Effect ◽  
Composite Structure ◽  
Composite Structures ◽  
Fine Particles ◽  
Rietveld Method ◽  
Diffraction Method ◽  
X Ray Diffraction ◽  
X Ray

The crystal structures of barium titanate (BaTiO3) fine particles with a size around 140 nm were investigated using a synchrotron radiation X-ray diffraction method. The observed diffraction pattern was analyzed by Rietveld method assuming several models. As a result, it is found that the BaTiO3 fine particles have composite structures include (a) a tetragonal region with a constant c/a ratio, (b) a tetragonal region with gradient c/a ratios and (c) a cubic region. In order to estimate these structures, the partial profile relaxation technique was applied in the Rietveld refinement. It is considered that the composite structure is important for the size effect on BaTiO3 fine particles.

Phase Relation of FeS2-VS2 System and New Phase of Defect Troilite Structure

2011 ◽  
Vol 170 ◽  
pp. 92-96 ◽  
Author(s):  
Yoshihisa Miyata ◽  
Koya Hayashi ◽  
Genta Sakane ◽  
Takaaki Arimoto ◽  
Yasuhiro Katayama ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Transition Temperature ◽  
Rietveld Method ◽  
Diffraction Method ◽  
Silica Tube ◽  
X Ray Diffraction ◽  
Large Defect ◽  
X Ray ◽  
Property Measurement ◽  
New Phase

A large defective troilite (Fe0.9V0.1)0.82S is prepared by a sealed silica-tube method at 800oC and characterized by a powder X-ray diffraction method and using a magnetic property measurement system. The crystal structures of a defective troilite and non defective troilite are analyzed by Rietveld method. The large defect enhances the Fe-Fe pairing and suppresses the waving of Fe-chain along c-direction. The antiferromagnetic property is observed on both troilites. The spin-flip transition temperature of the large defective troilite is 9K.

Analysis of Composite Structures on Barium Titanate Fine Particles Using Synchrotron Radiation

2006 ◽  
pp. 239-242 ◽  
Author(s):  
Takuya Hoshina ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Satoshi Wada ◽  
Masatomo Yashima ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Barium Titanate ◽  
Composite Structures ◽  
Fine Particles

Study on pyrite FeS2 films deposited on Si(100) substrate by synchrotron radiation surface X-ray diffraction method

2004 ◽  
Vol 268 (1-2) ◽  
pp. 222-226 ◽  
Author(s):  
Dongyun Wan ◽  
Qing He ◽  
Lipeng Zhang ◽  
Quanjie Jia ◽  
Rengang Zhang ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Diffraction Method ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Preparation of Nano Ink Using Cobalt Ferrite and Barium Titanate for Printed Electronic Devices

2020 ◽  
Vol 3 (10) ◽  
pp. 132-135
Author(s):  
Emy Rose Peter ◽  
Jismon Sebastian ◽  
Swapna S. Nair
Keyword(s):  
Barium Titanate ◽  
Cobalt Ferrite ◽  
Diffraction Method ◽  
Band Gap Energy ◽  
X Ray Diffraction ◽  
Visible Spectroscopy ◽  
X Ray ◽  
Pure Cobalt ◽  
Uv Visible

Lead in our body is toxic and hazardous. Here leadfree Cobalt ferrite and Barium Titanate inks have been prepared and fabricated. The prepared inks remained stable without agglomeration or condensation during preservation. Cobalt Ferrite and Barium Titanate Nano inks have been characterized using X-ray diffraction method and UV Visible Spectroscopy. By the analysis of X-ray diffraction (XRD), the resultant inks were confirmed to be of pure Cobalt Ferrite and Barium Titanate powders with cubic structure and tetragonal structure respectively. Lattice parameters and grain size have been determined by X-ray diffraction method. UV Visible Spectroscopy analysis has been done to obtain the band gap energy of the prepared inks. The preparation and characterization of Cobalt Ferrite and Barium Titanate Nano inks are comprehensively demonstrated in this paper.

Estimation of Order Parameter and Spin Moment of Fe3Pt by White X-Ray Diffraction Method

2013 ◽  
Vol 596 ◽  
pp. 3-7
Author(s):  
Kenta Hiiragi ◽  
Masahiro Naito ◽  
Hiromi Watanabe ◽  
Hiroshi Maruyama ◽  
Masahisa Ito
Keyword(s):  
Synchrotron Radiation ◽  
Diffraction Data ◽  
Order Parameter ◽  
Diffraction Method ◽  
Superlattice Reflection ◽  
Spin Moment ◽  
X Rays ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pt Alloy

Diffraction intensities of a single crystal of Fe3Pt alloy have been measured by using white X-rays of synchrotron radiation. The observed intensities have been compared with the calculated ones for fundamental and superlattice reflections. By normalizing the calculated intensities of fundamental reflections to the observed ones and evaluating the ratio of the observed intensity of superlattice reflection to the calculated ones, we have estimated the order parameter as 0.82±0.03. The obtained order parameter has been applied to an analysis of the X-ray magnetic diffraction data to estimate the spin moment of Fe and Pt atoms in this alloy.

In-Situ Investigations of the Martensitic Transformation in TiNi by Synchrotron Radiation

1999 ◽  
Vol 121 (1) ◽  
pp. 56-60 ◽  
Author(s):  
S. N. Kulkov ◽  
Yu. P. Mironov
Keyword(s):  
Martensitic Transformation ◽  
Synchrotron Radiation ◽  
Martensite Transformation ◽  
Room Temperature ◽  
Diffraction Method ◽  
X Ray Diffraction ◽  
Initial State ◽  
X Ray

By means of synchrotron X-ray diffraction method the stress-induced martensite transformation in TiNi (with two different phase compositions) at room temperature was investigated in situ. It has been shown that in the alloys with temperature-induced martensite in the initial state a nonperiodic fluctuation of intensity of the X-ray reflexes appeared due to anomalous transformation B2 + B19′T → B2 → B19′Si.

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