Download or read book Modeling the Effect of Thermal Oxidation on the Pore Structure of Artificial Graphite written by Ryan Michael Paul and published by . This book was released on 2011 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A persistent concern for applications of artificial graphite materials is loss of graphite due to thermal oxidation reactions with air or steam. Oxidation is insidious since it enlarges the inherent pores, which rapidly degrades microstructure and properties. Artificial graphites vary in their initial pore microstructure, yet the currently used 2D Random Pore Model (2D-RPM) cannot accurately predict oxidation rates from initial microstructure. Therefore, empirical methods have remained widely used to quantify oxidation rates.

Download or read book Study of Internal Reaction During Thermal Oxidation of Carbon graphite Materials written by L. N. Shein and published by . This book was released on 1969 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The kinetics of thermal oxidative pretreating of pressed work pieces containing coke, natural graphite and coal pitch were experimentally studied and theoretically analyzed to define the effects of adsorption and diffusion involving the porous body and the pitch binder coating the pore surfaces. The material used in experimental measurements comprised 65 percent pyrolytic petroleum coke, 5 percent natural graphite, and 30 percent Magnitogorsk coal pitch. The transition of the pitch binder into a solid material and the migration of the reaction zone from the surface in the center of the sample were determined from the yield of volatile materials by a published technique at 200 and 240 C. The effective diffusion coefficient was derived by correlating the yield of volatile products, the amount of consumed oxygen, and the change of gas yield with time. The amount of oxygen penetrating the material and its concentration gradient were derived. The porosity was measured and mathematical models were derived defining the effective diffusion coefficient as a function of porosity and pore structure. The effect of temperature on diffusion was considered. The nonisothermal condition of the process was experimentally determined and discussed and it was shown that the migration of reaction zones is the main factor limiting the usability of the process. (Author).

Download or read book The Oxidation of Graphite and Its Effect on Pore Structure written by G. V. Butcher and published by . This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Oxidation of Graphite and Its Effect on Pore Structure written by J. Butcher and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1961 with total page 1984 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Download or read book The Role of Pore Structure in the Oxidation of Graphite by Irradiated Carbon Dioxide written by J.M. Hutcheon and published by . This book was released on 1962 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1991-11 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1993 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ceramic Abstracts written by and published by . This book was released on 1998 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 1994-03-07 with total page 1668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solid Fuel Chemistry written by and published by . This book was released on 1990 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Carbon and Graphite Handbook written by Charles Letnam Mantell and published by . This book was released on 1968 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book INIS Atomindex written by and published by . This book was released on 1984 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Carbon Graphite Diamonds and Fullerenes written by Hugh O. Pierson and published by William Andrew. This book was released on 2012-12-02 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a review of the science and technology of the element carbon and its allotropes: graphite, diamond and the fullerenes. This field has expanded greatly in the last three decades stimulated by many major discoveries such as carbon fibers, low-pressure diamond, and the fullerenes. The need for such a book has been felt for some time. These carbon materials are very different in structure and properties. Some are very old (charcoal), others brand new (the fullerenes). They have different applications and markets and are produced by different segments of the industry.Few studies are available that attempt to review the entire field of carbon as a whole discipline. Moreover these studies were written several decades ago and a generally outdated since the development of the technology is moving very rapidly and scope of applications is constantly expanding and reaching into new fields such as aerospace, automotive, semiconductors, optics, and electronics. In this book the author provides a valuable, up-to-date account of both the newer and traditional forms of carbon, both naturally occurring and man-made. This volume will be a valuable resource for both specialists in, and occasional users of carbon materials.