Download or read book Solar Energy Update written by and published by . This book was released on 1979 with total page 490 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 1986 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Evalustion of Die and Container Materials Fourth Quarterly Progress Report July 1 September 30 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass spectrometric studies of molten silicon in contact with mullite and x = 0.75 .beta.' Sialon show that the vapor pressures of Si, Si0, Al, and Al20 species are very similar. In both cases the oxygen solubility is extremely low, but the aluminium content of the silicon is higher for the mullite--silicon system (3 weight percent), compared with 5000 ppm for the x = 0.75 .beta.' Sialon. The nitrogen concentration (312 ppm) of the silicon is marginally below that for the Si3N4--silicon system indicating that the addition of aluminium and oxygen to .beta. Si3N4 does stabilize the nitrogen to some extent. Silicon beryllium oxynitrides were fabricated by hot pressing Si3N4--BeO-SiO2 mixtures using three Si3N4 powders. Single phase materials were obtained with KBI, Inc. and Sylvania SN502 grade powders, but not with Sylvania SN402 grade powder. Preliminary evaluation of the silicon beryllium oxynitride materials with molten silicon did not reveal any attack of these materials. X = 0.75 .beta.' Sialon did, however, undergo slight attack. It is suggested that the rate of dissolution of aluminium in molten silicon could be affected by whether the Sialon is used in an inert atmosphere or under vacuum conditions.

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 932 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 1979 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Evaluation of Die and Container Materials written by Battelle Memorial Institute. Columbus Laboratories and published by . This book was released on 1979 with total page 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 1981 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radioactive Waste Processing and Disposal written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1983 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1983-10 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and evaluation of die and container materials written by Battelle Memorial Institute. Columbus Laboratories and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Directory of Computer Software Applications written by and published by . This book was released on 1977 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavior Society written by and published by . This book was released on 1980 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Directory of Computer Software Applications Energy 1977 1980 written by and published by . This book was released on 1980 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annotated Bibliography on the Transportation and Handling of Radioactive Materials 3 written by M. M. Heiskell and published by . This book was released on 1980 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study Program to Develop and Evaluate Die and Container Materials Second Quarterly Report January March 1978 For Liquid Silicon written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The goals of the present program are to develop successful die and container materials for handling liquid silicon while it is being formed into photovoltaic cell material. These goals will hopefully be accomplished by exploring various materials configurations for their reactivity with molten silicon. The combination of unique coating structures combined with control of oxygen partial pressures may yield some previously unsuspected set of conditions which are useful for cost effective die growth or containing silicon melts. Successful experimental configurations will be scaled up into prototype dies and containers as appropriate during the third and fourth quarters of calendar 1978. Economics for large scale production of such prototypes will be defined as part of the program. Die and container material development efforts under the current program are shared among three organizations. Miami Research Laboratories (MRL)--Ceramic process development and overall program management, University of Missouri-Rolla (UMR) (Prof. P.D. Ownby)--silicon sessile drop studies with characterization of reaction products and emphasis on atmospheric effects, Chemetal Corp., Pacoima, Calif. (R. Holzl, president)--special coatings to be applied to test coupons, die shapes and containers provided by MRL and tested/characterized by UMR. MRL has hot pressed three different substrate materials for coating at Chemetal Corp. Chemetal has coated these substrates, and they in turn have been furnished to UMR for sessile drop experiments. UMR has completed assembly of its sessile drop apparatus and has begun sessile drop experiments in order to establish proper techniques and to check out operation of the assembly. Initial experiments were done with Al2O3 and SiO2 substrates, but SiC coated substrates were begun near the end of March.