Download or read book Investigation of Char Formation and Surface Recession of a Composite Ablation Material with a Silicone resin Base written by Allen G. McLain and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A composite ablation material containing a silicone- resin base, silica fibers, and phenolic and silica hollow microspheres has been subjected to a wide range of test conditions to study its charring behavior. The ablation tests were performed at stagnationpoint pressures ranging from 0.016 to 1.3 atm and heating rates ranging from 1.34 MW/m2 to 14.8 MW/m2 in air and nitrogen. The resulting char-layer surfaces fell into three categories - black char, glassy-coated char, and gray char - as heating rates (and char surface temperatures) were increased. The char layers formed contained large percentages by weight of silicon dioxide. Silicon carbide was found to be in chars formed at high heating rates. Empirical correlations of surface recession were determined. For the higher heating rates where steady-state ablation was approached, char-layer constituents and mass loss could be predicted adequately with chemical equilibrium in the reactions at the surface assumed.
Download or read book Investigation of Char Formation and Surface Recession of a Composite Ablation Material with a Silicone resin Base written by Allen G. McLain and published by . This book was released on 1970 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: A composite ablation material containing a silicone- resin base, silica fibers, and phenolic and silica hollow microspheres has been subjected to a wide range of test conditions to study its charring behavior. The ablation tests were performed at stagnationpoint pressures ranging from 0.016 to 1.3 atm and heating rates ranging from 1.34 MW/m2 to 14.8 MW/m2 in air and nitrogen. The resulting char-layer surfaces fell into three categories - black char, glassy-coated char, and gray char - as heating rates (and char surface temperatures) were increased. The char layers formed contained large percentages by weight of silicon dioxide. Silicon carbide was found to be in chars formed at high heating rates. Empirical correlations of surface recession were determined. For the higher heating rates where steady-state ablation was approached, char-layer constituents and mass loss could be predicted adequately with chemical equilibrium in the reactions at the surface assumed.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1970 with total page 1730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1970 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Abstracts written by and published by . This book was released on 1973 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Demonstration of the Range Over which the Langley Research Center Digital Computer Charring Ablation Program CHAP Can be Used with Confidence written by Carl Bailey Moyer and published by . This book was released on 1972 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Contractor Report written by and published by . This book was released on 1980 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulative Title Index to United States Public Documents 1789 1976 written by Daniel W. Lester and published by . This book was released on 1980 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography on Fibers and Composite Materials 1969 1972 written by J. N. Fleck and published by . This book was released on 1972 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bibliography contains over 3000 references, including translated items from Japan, West Germany, U.S.S.R., and other countries as well as references of original English language publications of the United States and United Kingdom. The references are categorized by specific fiber and matrix materials. In addition, many references are grouped in the general categories of compatibility studies, theory and design, testing and evaluation, application, and fabrication. A group of references to general review articles is included. The references represent the holdings of the former Defense Ceramic Information Center (DCIC) plus those of the Fibers and Composites Center (FCIC) at Battelle's Columbus Laboratories and MCIC. (Author).
Download or read book Proceedings written by and published by . This book was released on 1973 with total page 1378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1970 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Simulation written by Joseph C. Richmond and published by . This book was released on 1970 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1971 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
