scholarly journals THE INVESTIGATION OF CRYSTAL AND MAGNETIC STRUCTURES OF SOLID SOLUTIONS BaFe12-xDxO19 (D= In AND Ga; x= 0.1 – 1.2)

2018 ◽  
Vol 185 ◽  
pp. 04011 ◽  
Author(s):  
Vitalii Turchenko ◽  
Alex V. Trukhanov ◽  
Sergei V. Trukhanov ◽  
I.S. Kazakevich
Keyword(s):  
High Resolution ◽  
Neutron Diffraction ◽  
Curie Temperature ◽  
Solid Solutions ◽  
Diffraction Method ◽  
Magnetic Structures ◽  
Microstructural Parameters ◽  
Barium Ferrites ◽  
Neutron Diffraction Method ◽  
Crystal And Magnetic Structures

The influence of partially substituted of barium ferrites by diamagnetic In and Ga ions with neutron diffraction method was studied. The substitution of Fe by In ions leads to increase of volume of unit cell while replacing with Ga ions insignificantly change the lattice parameters. The concentration dependence of the Tc Curie temperature as well as the magnetization is constructed. The refinement of the magnetic structure was carried out within the framework of Gorter’s model. The microstructural parameters of solid solutions BaFe12-xDxO19 (D= In and Ga; x = 0.1–1.2) were determined by the high-resolution neutron diffraction method.

Neutron Diffraction Studies of the Crystal and Magnetic Structures of BiMnxFe1-xO3 Solid Solutions

2001 ◽  
Vol 378-381 ◽  
pp. 616-620 ◽  
Author(s):  
Izabela Sosnowska ◽  
Wolfgang Schäfer ◽  
Winfried A. Kockelmann ◽  
I.O. Troyanchuk
Keyword(s):  
Neutron Diffraction ◽  
Solid Solutions ◽  
Magnetic Structures ◽  
Crystal And Magnetic Structures

Residual Stress Evaluation of Ni Based Weld Metal Using Neutron Diffraction Method

2006 ◽  
Vol 524-525 ◽  
pp. 697-702 ◽  
Author(s):  
Shinobu Okido ◽  
Hiroshi Suzuki ◽  
K. Saito
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Neutron Diffraction ◽  
Weld Metal ◽  
Diffraction Method ◽  
Fem Analysis ◽  
Butt Weld ◽  
Stress Evaluation ◽  
Neutron Diffraction Method

Residual stress generated in Type-316 austenitic stainless steel butt-weld jointed by Inconel-182 was measured using a neutron diffraction method and compared with values calculated using FEM analysis. The measured values of Type-316 austenitic stainless steel as base material agreed well with the calculated ones. The diffraction had high intensity and a sharp profile in the base metal. However, it was difficult to measure the residual stress at the weld metal due to very weak diffraction intensities. This phenomenon was caused by the texture in the weld material generated during the weld procedure. As a result, this texture induced an inaccurate evaluation of the residual stress. Procedures for residual stress evaluation to solve this textured material problem are discussed in this paper. As a method for stress evaluation, the measured strains obtained from a different diffraction plane with strong intensity were modified with the ratio of the individual elastic constant. The values of residual stress obtained using this method were almost the same as those of the standard method using Hooke’s law. Also, these residual stress values agreed roughly with those from the FEM analysis. This evaluation method is effective for measured samples with a strong texture like Ni-based weld metal.

Study on the crystal and magnetic structures of and by powder neutron diffraction

1998 ◽  
Vol 10 (50) ◽  
pp. 11703-11712 ◽  
Author(s):  
Keitaro Tezuka ◽  
Yukio Hinatsu ◽  
Yutaka Shimojo ◽  
Yukio Morii
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Structures ◽  
Powder Neutron Diffraction ◽  
Crystal And Magnetic Structures

Neutron Scattering for Materials Science

2006 ◽  
Vol 112 ◽  
pp. 39-60 ◽  
Author(s):  
A. Szytuła
Keyword(s):  
Neutron Diffraction ◽  
Chemical Reactions ◽  
Small Angle ◽  
Materials Science ◽  
Review Paper ◽  
Condensed Matter ◽  
Practical Applications ◽  
Magnetic Structures ◽  
Angle Scattering ◽  
Crystal And Magnetic Structures

The work is a review paper concerning application of neutron diffraction methods for condensed matter investigations and for characterizing modern materials, namely for crystal and magnetic structures determination, small-angle scattering, investigations of chemical reactions and some practical applications. It addresses briefly a few of more prominent techniques that are important for materials scientists. In the first part of the work information on the methods and ways of interpretation of obtained results is given. Then the results for some chosen compounds are presented.

Local Structure of the Amorphous Ni25Zr75-Alloy by Using the Isotope-Substitution Neutron Diffraction Method

1991 ◽  
Vol 46 (11) ◽  
pp. 951-954
Author(s):  
W.-M. Kuschke ◽  
P. Lamparter ◽  
S. Steeb
Keyword(s):  
Neutron Diffraction ◽  
Local Structure ◽  
Short Range ◽  
Short Range Order ◽  
Diffraction Method ◽  
Isotopic Substitution ◽  
Isotope Substitution ◽  
Coordination Numbers ◽  
Structure Factors ◽  
Neutron Diffraction Method

AbstractUsing neutron diffraction as well as the method of isotopic substitution the partial Bhatia-Thornton as well as the partial Faber-Ziman structure factors of amorphous Ni25Zr75 were determined. A compound forming tendency was found. The atomic distances, partial coordination numbers, and the chemical short range order parameter are evaluated.

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