Last edited by Tolabar
Saturday, May 16, 2020 | History

3 edition of Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites found in the catalog.

Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites

Michael C. Halbig

Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites

by Michael C. Halbig

  • 286 Want to read
  • 16 Currently reading

Published by National Aeronautics and Space Administration, Lewis Research Center, National Technical Information Service, distributor in [Cleveland, Ohio], [Springfield, Va .
Written in English

    Subjects:
  • Carbon fibers.,
  • Ceramic matrix composites.,
  • Mathematical models.,
  • Finite difference theory.,
  • Diffusion.,
  • Oxidation.,
  • Reaction kinetics.,
  • Microcracks.

  • Edition Notes

    StatementMichael C. Halbig, Andrew J. Eckel, James D. Cawley.
    SeriesNASA/TM -- 1999-208911, NASA technical memorandum -- 208911..
    ContributionsEckel, Andrew J., Cawley, James D., Lewis Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17133192M

    Fiber/matrix interface reaction zone growth kinetics at C were examined for each composite system. Although both systems more» exhibited similar interface reaction products (i.e., mixed Ti carbides, silicides, and Ti-Al carbides), growth kinetics in the [alpha][sub 2] + [beta] matrix composite were much more rapid than in the O + [beta. Barrier Composites Kinetics KBC barrier composites are thin, rugged, high performing, flexible acoustical composites designed to solve difficult noise control applications where sound absorption must be increased and sound transmission must be reduced. Kinetics Model KBC barrier composites are available with 1/2 PSF, 1 PSF or 2 PSF (, or File Size: 1MB.

    This work presents a thorough identification and analysis of the dissolution and diffusion-based reaction processes that occur during the drawing of YBa2Cu3O7−x (YBCO) glass-clad fibers, using the molten-core approach, on a fiber draw tower in vacuum and in oxygen atmospheres. The results identify the dissolution of the fused silica cladding and the subsequent diffusion of silicon and oxygen Cited by: 1. Graphene has been widely used to dramatically improve the capacity, rate capability, and cycling performance of nearly any electrode material for batteries. However, the binding between graphene and these electrode materials has not been clearly elucidated. Here we report oxygen bridges between graphene with oxygen functional groups and NiO from analysis by X-ray photoelectron spectroscopy.

    Combining sol-gel synthesis of 3/2 mullite through hydrolysis and condensation of tetraethoxysilane and aluminum-tri-sec-butylate with electrophoretic deposition (EPD) yields sufficiently thick and homogeneous layers which transform into mullite at T ≥ °C. The characterisation of the mullite precursor during synthesis was performed through electroacustic by: 3. In the context of sustainable development, considerable interest is being shown in the use of natural fibres like as reinforcement in polymer composites and in the development of resins from renewable resources. This paper focuses on eco-friendly and sustainable green composites manufacturing using resin transfer moulding (RTM) process. Flax fibre reinforced bioepoxy composites at different Cited by:


Share this book
You might also like
Croners personnel procedures.

Croners personnel procedures.

Prospects and challenges for EU-China relations in the 21st century

Prospects and challenges for EU-China relations in the 21st century

Van Gogh

Van Gogh

A simulation of remote sensor systems and data processing algorithms for spectral feature classification

A simulation of remote sensor systems and data processing algorithms for spectral feature classification

London adventure

London adventure

By the King, a proclamation for disarming and securing of popish recusants

By the King, a proclamation for disarming and securing of popish recusants

Recommendations for Oil Tanker Manifolds & Associated Equipment

Recommendations for Oil Tanker Manifolds & Associated Equipment

Museums in a troubled world

Museums in a troubled world

Infrastructure for the third millennium

Infrastructure for the third millennium

Between the tag and the screen

Between the tag and the screen

Implementation of EU agri-environment regulation 2078.

Implementation of EU agri-environment regulation 2078.

Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites by Michael C. Halbig Download PDF EPUB FB2

Get this from a library. Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites. [Michael C Halbig; Andrew J Eckel; James D Cawley; Lewis Research Center.] -- Previous stressed oxidation tests of C/SiC composites at elevated temperatures ( deg C to deg C) and sustained stresses (69 MPa and MPa) have led to the development of a finite difference.

Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Michael C Halbig; Andrew J Eckel; James D Cawley; Lewis Research Center.

RESEARCH LABORATORY Oxygen Diffusion and Reaction Kinetics in Continuous Fiber Ceramic Matrix Composites Michael C. Halbig U.S.

Army Research Laboratory, Lewis Research Center, Cleveland, Ohio Andrew J. Eckel Lewis Research Center, Cleveland, Ohio James D. Cawley Case Western Reserve University, Cleveland, Ohio February Advances in Ceramic Matrix Composites, Second Edition, delivers an innovative approach to ceramic matrix composites, focusing on the latest advances and materials developments.

As advanced ceramics and composite materials are increasingly utilized as components in batteries, fuel cells, sensors, high-temperature electronics, membranes and high. This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series.

This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics.

Ceramic matrix composites (CMCs) are being developed to take advantage of the high-temperature properties of ceramics while overcoming the low fracture toughness of monolithic ceramics.

Future trends in fabrication of ceramic matrix composites by infiltration methods. Long fiber-reinforced CMCs have been used since s in many applications where a combination of good mechanical properties, low density, and thermal stability is : Dmitri Kopeliovich.

Corrosion of Ceramic Matrix Composites. The activation energy of the oxygen diffusion (and of the oxidation (Kp)) is found to be ± 25 kJ/mol, which is consistent with literature values.

Table provides examples of some important reinforcements used in metal matrix composites and their aspect (length/diameter) ratios and diameters. Particle or discontinuously reinforced MMCs have become very important because they are inexpensive vis à vis continuous fiber reinforced composites and they have relatively isotropic properties compared to fiber reinforced by: This section centers on fiber coatings for non-oxide composites in which either the fiber or the matrix is a non-oxide ceramic.

Although oxide fiber-reinforced composites have been studied, most of the research available in the literature has focused on SiC fiber-reinforced composites.

Oxygen diffusion and reaction kinetics in continuous fiber ceramic matrix composites / Michael C. Halbig, Andrew J.

Eckel, James D. Cawley; Prediction of tension failure of textile composite using micro-mechanics and statistical analysis / Y. Shi, M.F. Card, V.V. Raman, R.M.V. Murthi. Matrix cracking resulting from thermal mismatch is, comparatively speaking, a more serious problem in short fiber composites than in continuous fiber composites.

The reason is that in a ceramic matrix containing aligned continuous fibers, transverse microcracks appear in the matrix, but fibers continue to hold the various matrix blocks together Cited by: Using this technique, composites can be fabricated at a low cost into complicated shapes.

Compared to the titanium matrix composites fabricated by solid state processes, composites fabricated by this technique exhibit smaller as-fabricated reaction zones and comparable mechanical properties.

Self-healing, obtained by the oxidation of a glass-forming phase, is a crucial phenomenon to ensure the lifetime of new-generation refractory ceramic-matrix composites.

The dynamics of oxygen diffusion, glass formation and flow are the basic ingredients of a self-healing model that has been developed here in 2D in a transverse crack of a mini-composite.

The presented model can work on a Author: Grégory Perrot, Guillaume Couégnat, Mario Ricchiuto, Gerard L. Vignoles. Université de Bordeaux, Laboratoire des Composites Thermostructuraux, 3, Allée de la Boétie, Pessac, France 6 Deutsches Zentrum für Luft- und Raumfahrt e.

V., Institut für Werkstoff-Forschung, Linder Höhe, Köln, Germany. Diffusion of cations in high-temperature oxidation of ceramic matrix composites dispersed with metallic particles is discussed in this paper.

Inward diffusion of oxygen passing though oxidized zone gives volume expansion of metallic dispersoid by oxidation and generates stress in the matrix during h.

The objective of this Cooperative Research and Development Agreement between Lockheed Martin Energy Research Corporation and Dow Corning Corporation was to study the effects of temperature, stress, fiber type and fiber architecture on the time-dependent deformation and stress-rupture behavior of polymer-derived ceramic matrix composites developed by the Dow Corning Author: E.

Lara-Curzio. FABRICATION OF CONTINUOUS FIBER-REINFORCED CERAMIC MATRIX COMPOSITES BY OF ELECTROPHORETIC DEPOSITION Saša Novak, Alja ž Iveković Jožef Stefan Institute, Slovenia @, [email protected] Keywords: ceramic-matrix composite, silicon carbide, electrophoretic deposition, infiltration.

Ceramic Matrix Composites: Materials, Manufacturing and Engineering Dariusz M. Jarzabek, Yongsheng Zhang, Brahim Aissa, Mohamed Bououdina, Wojciech Dera Composite materials are engineered from two or more constituents with significantly altered physical or.

Most CMCs are reinforced with continuous, multifilament tow ceramic fibers. Fiber tows typically consist of to 1, filaments, with a diameter of 10 to 15 µm ( to mils) each. These fiber tows are flexible, easy to handle, and can be woven into fabrics and used to fabricate.

Effect of Surface Oxygen on Adhesion of Carbon Fiber Reinforced Composites - Volume - P. W. Yip, S. S. LinCited by: Chapter 7 MoSi 2 is its oxidation resistance. Cook et al. [] investigated the incorporation of 30 vol.% TiB 2, ZrB 2 HfB 2, and SiC as a reinforcement in hopes of developing a composite of greater oxidation resistance than the base MoSi 2.COMPOSITES & POLYCON 3 Subsequently it is moved to an aerobic environment.

Oxygen diffusion through the membrane is measured using a Figaro oxygen sensor (KE 25)14 that is countersunk with its top flush with the base of the cell.