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Thursday, November 19, 2020 | History

3 edition of An X-ray diffraction study of titanium oxidation found in the catalog.

An X-ray diffraction study of titanium oxidation

An X-ray diffraction study of titanium oxidation

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Published by Metallurgical Society of AIME, National Aeronautics and Space Administration, National Technical Information Service, distributor in Warrendale, PA, [Washington, DC, Springfield, Va .
Written in English


Edition Notes

Other titlesX ray diffraction study of titanium oxidation
Statementby K.E. Wiedemann, J. Unnam
SeriesNASA contractor report -- NASA CR-176263, TMS paper selection -- paper no. F84-14
ContributionsUnnam, Jalaiah, United States. National Aeronautics and Space Administration
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14985884M

Abstract Refinement of the crystal structure of VO 2 at and K in the metallic rutile phase shows that both the vanadium and oxygen thermal displacements are larger than those found in rutile phases of TiO 2 and CrO 2 or monoclinic phases of VO 2 or V Cr O vanadium-vanadium distance along the rutile V Cr O 2 axis is anomalously short when compared with. The Study of Metals and Alloys by X-ray Powder Diffraction Methods H. Lipson 1. Introduction Classically, the two main ways of studying metals and alloys were metal- lography (the examination of polished and etched surfaces) and cooling curves (looking for discontinuities that indicated some sort of . X-ray diffraction study of the single-crystal elastic moduli of -Fe up to 30 GPa Se´bastien Merkel,1,2,3 Jinfu Shu,1 Philippe Gillet,2 Ho-Kwang Mao,1 and Russell J. Hemley1 Received 1 June ; revised 3 February ; accepted 11 February ; published 13 May


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An X-ray diffraction study of titanium oxidation Download PDF EPUB FB2

X-ray diffraction (XRD) is a nondestructive technique that provides detailed information about the crystallographic structure, chemical composition, and physical properties of materials. S.T. Misture, R.L. Snyder, in Encyclopedia of Materials: Science and Technology, X-ray diffraction has acted as the cornerstone of twentieth-century science.

Get this from a library. An X-ray diffraction study of titanium oxidation. [K E Wiedemann; Jalaiah Unnam; United States. National Aeronautics and Space Administration.].

A layer-by-layer x-ray diffraction phase analysis was made of the scale formed on Ni3Ti during atmospheric oxidation over the temperature range –°C.

The scale was found to contain the oxides NiO, NiO TiO2, TiO2 (rutile), Ti3O5, and Ti2O3 as well as two nickel phases — “pure” nickel and a nickel solid solution. The pattern of distribution of these phase constituents in Cited by: 2.

A study was made of the phase composition of the scale forming on Ni3(Al + 15 at.% Ti) and Ni3(Al + 5 at.%Ti) alloys during atmospheric oxidation at temperatures ranging from to °C. The scale was found to contain the oxides NiO, TiO2 (rutile),γ-Al2O3, NiO TiO2, NiO Al2O3, Ti3O5, and Ti2O3 together with Ni and a nickel base solid solution (Niss).Cited by: 2.

In this, the An X-ray diffraction study of titanium oxidation book book available to combine both theoretical and practical aspects of x-ray diffraction, the authors emphasize a "hands on" approach through experiments and examples based on actual laboratory data.

Part I presents the basics of x-ray diffraction and explains its use in obtaining structural and chemical information. In Part II, eight experimental modules enable the students to 5/5(4).

Fig. 2 shows a powder X-ray diagram for the composition Al Cu Fe before oxidation. This diffraction pattern is representative of an icosahedral material of high lattice perfection. Diffraction peaks due to the internal silicon standard are also indicated.

Download: Download full-size image; Fig. X-ray pattern for Al Cu Cited by: X-ray diffraction pattern obtained with the Scintag PAD-V diffractometer for oxidized, polished and etched Pd-Cu-Ga alloy Spartan Plus. %I 30 40 50 60 70 80 90 28 Fig. X-ray diffraction pattern obtained with the Philips diffractometer for oxidized air-abraded Pd-Cu-Ga alloy Spartan Plus.

X-ray Diffraction Study of Nickel Oxide Reduction by Hydrogen Article (PDF Available) in Applied Catalysis A General (1) June with Reads How we measure 'reads'. c et al.: x-ray diffraction study of thermal proper ties of titanium high motion of oxygen v acancies and thermal electrons, breaking of Ti-O bonds and due to a possible reduction of Ti 4+ [14].

To learn the method of X-ray diffraction crystallography well and to be able to cope with the given subject, a certain number of exercises is presented in the book to calculate specific values for typical examples.

This is particularly important for beginners in X-ray diffraction by: X-Ray Diffraction to Study the Oxidation Mechanism of Chromium at Elevated Temperatures p Study of the Sulfur Segregation for a TBC SystemCited by: 8. X-ray crystallography (XRC) is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions.

By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the.

Quantitative Phase Analysis for Titanium Dioxide From X-Ray Powder. Diffraction Data Using The Rietveld Method -Dhahir Vol: 9 No: 2, May ISSN: 1. Rietveld Analysis The Rietveld method is a full-profile approach that was initially introduced for refinement of crystalline structures using neutron diffraction.

Co-doped TiO2 is one of the most extensively studied oxides for applying as dilute magnetic semiconductors due to its room temperature magnetism.

Here we present results of the studies of TiCoO2 nanopowders synthesized by microwave-assisted hydrothermal method by means of X-ray diffraction, soft X-ray absorption spectroscopy (Ti L2,3 and Co L2,3 spectra), hard X-ray Cited by: 6. X-ray Diffraction & Elemental Analysis Elemental analysis of solids, liquids, powders, alloys and of titanium coatings on steel.

The book review covers Biological Small Angle Scattering: Theory and Practice. The link of the to prevent oxidation and corrosion of the base metal. Conversion coatings include Cr, Ti, V, Mn, Ni, or Zr. X-ray Diffraction. One of the best methods of determining a crystal's structure is by X-ray diffraction.

In macromolecular x-ray diffraction experiments, an intense beam of X-ray strikes the crystal of study. In general, crystal diffracts the X-ray beam differently, depending on its structure and orientation. The crystalline structure of titanium oxide layers was examined by grazing incidence X-ray diffraction (GIXRD, X-ray source of Cu Kα, Wavelength of Å, X-ray power of 9kW, Rigaku Co., Tokyo, Japan), and the chemical composition of the layer was analyzed by X-ray photoelectron spectroscopy (XPS, X-ray source of Mg Kα, hν of eV, X Author: Changhyun Lee, Soohyun Bae, HyunJung Park, Dongjin Choi, Hoyoung Song, Hyunju Lee, Yoshio Ohshita, D.

Capability of X-ray diffraction for the study of microstructure of metastable thin films David Rafaja, a * Christina Wüstefeld, a Milan Dopita, a Mykhaylo Motylenko a and Carsten Baehtz b a Institute of Materials Science, TU Bergakademie Freiberg Germany, and b Institute of Ion Beam Physics and Materials Research, Helmholtz Zentrum Dresden.

Xing et al. [] deposited about film of elemental hafnium on silicon substrates at a base pressure of high torr using the focused electron beam evaporation Hf/Si interface was subjected to rapid thermal oxidation process at temperatures ranging from to ° C. They have characterized the interface using X-ray diffraction, Auger electron spectroscopy, XPS, and electrical Cited by: This is the first time a book has been dedicated to modelling techniques for titanium.

Part one discusses experimental techniques such as microscopy, synchrotron radiation X-ray diffraction and differential scanning calorimetry. X-Ray Diffraction Studies of a Graphitized Carbon - Changes in Interlayer Spacing and Binding Energy with Temperature. The study of metals and alloys by X-ray powder diffraction methods H.

Lipson Teaching aims. To introduce research students with no previous experience to the basic ideas of the use of the powder method for the study of metals and alloys. Level. No advanced. @article{osti_, title = {In-situ X-ray diffraction studies over nickel particles supported on titania, niobia, and alumina on CO hydrogenation reactions}, author = {Jiang, X and Song, B and Chen, Y and Wang, Y}, abstractNote = {The present study has been undertaken in an attempt to examine the presence of the different kinds of intermediate phases after H/sub 2/ reduction and CO/H/sub 2.

X-ray diffraction study on residual stress and preferred orientation in thin titanium films subjected to a high ion flux during deposition M.

Birkholza) Fraunhofer Institut für Schicht- und Oberflächentechnik Bienroder Weg 54 E, Braunschweig, Germany C. Genzel. X-Ray Diffraction, frequently abbreviated as XRD, is a non-destructive test method used to analyze the structure of crystalline materials.

XRD analysis, by way of the study of the crystal structure, is used to identify the crystalline phases present in a material and thereby reveal chemical composition information.

The sample then was investigated using weight change measurement analysis and X-ray diffraction (XRD) analysis to study the weight gained and the phase oxidation that occurred. The weight gained of the titanium alloy was higher in molten salt environment compared to stainless steel due to the rapid growth in the oxide scale but showed almost no Author: Azila Baharum, Norinsan Kamil Othman, Emee Marina Salleh.

Oxidation of Ta% W was studied in the temperature range deg C. Thermogravimetric studies of oxidation rates and x-ray diffraction, and metallographic and microhardness studies on oxidized specimens were made.

The oxidation constitutes oxide formation and oxygen dissolution in the alloy core. X-ray diffraction is a useful and powerful analysis technique for characterizing crystalline materials commonly employed in MSE, physics, and chemistry.

This informative new book describes the principles of X-ray diffraction and its applications to materials characterization.

It consists of three pa. Advantage: The x-ray diffraction provides a qualitative, a semi-quantitative and in some cases also a quantitative determination of crystalline substances. In conservation and restoration, it delivers particularly good results for the study of pigments, salts, rock.

An X-ray diffraction study of corrosion products from low carbon steel AX. Morales* Abstract It was found in earlier work a decrease in the corrosion rate from low carbon steel when it was subjected to the action of a combined pollutant concentration (S04^~ = 10"^ M + Cl" = X 10~^ M).

It was also found that large magnetite content of. X-ray powder diffraction (XRD) represents the method of choice for the analysis of corrosion products, as it is the only analysis method that readily provides information about the phase-composition of solid materials.

For example, a mixture of F e 3O 4 (magnetite). Abstract: Titanium foils were subjected to soaking in NaOH aqueous solutions in the concentration range M to M, followed by oxidation in the range °C to °C. The samples were characterised by glancing angle X-ray diffraction and Raman microspectroscopy.

X-ray photoelectron spectroscopy study of low-temperature molybdenum oxidation process S. Castan˜eda, I. Montero,a) J. Ripalda, N. Dı´az, L. Gala´n, and F. Rueda Departamento de Fisica Aplicada C-XII, Universidad Auto´noma de Madrid.

X-Ray diffraction is a non-destructive technique that provides structural information on length scales from microns down to the atomic level. From the crystallographic orientation of an epitaxial film in a semiconductor to the nature of a single bond in an active drug candidate or the crystal structure of a catalytic precursor it is a truly indispensable tool.

Start studying X-ray diffraction. Learn vocabulary, terms, and more with flashcards, games, and other study tools. but was not a subject of study for this thesis. Albert Dantzer () carried out an X-ray diffraction study on the Flagstaff limestone.

His work was on samples taken from sections in Six-Mile Canyon, Central Utah, a few miles south of Manti Canyon. Figures 1 and 2. x-ray diffraction ANALYSIS: Dr. Sampath r, a geochemist/minerologist and X-ray diffraction and materials science specialist, carried out the clay mineral extractions and X-ray diffraction (XRD) analysis at his analytical materials laboratory (Technology of Materials) in.

ABSTRACT. TiO 2 nanoparticleshave been synthesized by the sol-gel method using titanium alkoxide and isopropanolas a precursor. The structural properties and chemical composition of the TiO 2 nanoparticles were studied usingX-ray diffraction, scanning electron microscopy, and X-ray photoelectron X-ray powder diffraction pattern confirms that the particles are mainly composed Cited by: 5.

A vibrating sample magnetometry study showed that, when radiation dose increased, the saturation and remanence magnetization decreased, whereas the coercivity and the remanence ratio increased.

This magnetic behavior results from variations in crystallinity, surface effects, and particle size effects, which are all dependent on the radiation dose. Titanium-immobilized materials based on mesoporous silica nanoparticles (MSNs) were prepared via a simple one-step method with a silylating agent and titanium precursors with different electronic and sterical characteristics.

The mesostructure of the materials was confirmed by X-ray diffraction and N 2 adsorption–desorption isotherm studies and their nanospherical morphology demonstrated by. X‐ray diffraction patterns of carbon black have been made with strictly monochromatic radiation.

Without making any assumptions as to the crystallinity of the material, the distribution of atoms about any one atom has been determined directly from the experimental scattering curve by the method of Fourier integral analysis. The results indicate definitely the existence of single graphite by: In this study, pure titanium pieces were thermally oxidized in air and pre-irradiated by UV-light under different environmental conditions such as in air or in ultra-pure water before aligning pairs of specimens in the GRAPE® set-up, i.e., two pieces of titanium substrates were aligned parallel to each other with optimum gap width (spatial Author: Satoshi Hayakawa, Keita Uetsuki, Akinori Kochi, Yuki Shirosaki, Akiyoshi Osaka.An in-situ X-ray absorption experiment of an oxidation reaction was performed using a CoNiMoS sample and con rmed the oxidation of cobalt and nickel by analysis the Co- and Ni K-edges.

CTM4XAS calculations indicated a transition from a Co 2+ T d system to a mixture of Co 2+ O h and Co 3+ O h species. Furthermore an in-situ X-ray absorption.