Download or read book Fabrication of Tungsten for Solid propellant Rocket Nozzles written by Robert Isaac Jaffee and published by . This book was released on 1961 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Manufacturing Methods for the Production of Infiltrated Tungsten Composite Rocket Nozzle Inserts written by T. Sturiale and published by . This book was released on 1966 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report summarizes results obtained during a program which was initiated under Contract AF33(615( -2090 on 1 September 1964, and successfully completed by the Space Systems Division, Avco Corporation on 31 July 1966. Manufacturing methods were developed for producing infiltrated tungsten composite materials having uniform microstructures and controlled grain sizes, pore sizes and pore size distribution for use as rocket nozzle insert materials. An ultrasonic sound velocity measurement technique was developed to non-destructively monitor billet fabrication and insure a homogeneous product. Preliminary screening was conducted by subjecting infiltrated tungsten specimens to high enthalpy air plasma environments and analyzing thermal response data and erosion behavior. Selected tungsten matrix and infiltrant combinations were fabricated into operational sized rocket nozzle inserts and test fired at the Rocket Propulsion Laboratory, Edwards Air Force Base. Simultated rocket motor firings were conducted using both 5700 F and 6500 F solid propellants. Subsequent evaluation indicated that zinc infiltrated tungsten materials hold promise for use as rocket nozzle inserts up to 6500 F. (Author).

Download or read book Manufacturing Development of Tungsten Alloys for Rocket Nozzles Mid year Report on Phase Ii written by A. E. LaMarche and published by . This book was released on 1960 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vacuum arc skull casting of tungsten-molybdenum alloy rocket nozzles in thin configurations can be achieved. It is anticipated that modifications of the same techniques can be adapted to the casting of pure tungsten. The reclamation of the tungsten scrap generated in this development contract has been achieved with very promising results. The reclamation of the 50 tungsten - 50 molybdenum weight per cent solid solution alloy scrap has not, however, met with success. A definite relationship between the purity of the vacuum arc melting electrodes and the ability to vacuum arc melt and cast successfully has been established. The temperature of the tungsten arc has been calculated theoretically and confirmed in experimental melting to be in the order of 10,000 to 11,000F. In addition, the partition of power or the amount of power which is received by the cathode and the anode has been shown to be approximately seventeen times greater at the anode or bath than that received by the cathode or consumable electrode using D.C. straight polarity.

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical and Physical Properties of Three Superalloys MAR M200 MAR M200 MAR 302 and MAR M322 written by J. A. VanEcho and published by . This book was released on 1964 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manufacturing Development of Tungsten Alloys for Rocket Nozzles Technique III Vacuum Arc Skull Casting written by WESTINGHOUSE ELECTRIC CORP BLAIRSVILLE PA. and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vacuum arc skull casting technique was evaluated as a method of producing W and W alloys for rocket nozzles. Bars of the 50 W- 50 Mo, 70 W-30 Mo, 90 W-10 Mo wt-% alloys and pure W in the pressed and sintered condition were vacuum arc melted and skull cast into graphite molds in a vacuum melting facility. Destructive testing of resultant parts was conducted to determine the hardness, soundness, contamination and grain size of the castings. The first pure W skull castings ever produced were made. The ability to vacuum arc melt and cast 60- to 70- lb pure W castings was established. The vacuum arc skull casting of W-Mo alloy rocket nozzles in thin configurations may be achieved. The temperature of the W arc was calculated theoretically and confirmed in experimental melting to be in the order of 8,000 to 11,000 F. (Author).

Download or read book Machining of Titanium Alloys written by C. T. Olofson and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The memorandum summarizes current knowledge concerning the machining of titanium alloys. The memorandum deals with the following conventional machining operations: milling, face milling, peripheral milling, turning, boring, drilling, tapping, and grinding. The last section of the memorandum deals with chemical milling operations.

Download or read book Tungsten Research and Development Review written by J. L. Ratliff and published by . This book was released on 1963 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Government-sponsored tungsten research and development efforts encompass a broad rage of technological activities. Typifying the extreme limits of efforts since January, 1960, studies have ranged from preparation of unalloyed metal to development of high-integrity fabricated shapes of tungsten-base materials. Nine major areas outline the broad over-all effort, and each is summarized within this report by brief technical discussions of 104 separate studies on 79 research programs. Included are preparation of metal, consolidation, primary and secondary working, joining, fabrication and performance of rocket nozzles, oxidation and other high-temperature reactions, protective coatings, properties, and physical metallurgy.

Download or read book Army Research Task Summary Index written by United States. Army Research Office and published by . This book was released on 1961 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Report Jet Propulsion Laboratory California Institute of Technology written by Jet Propulsion Laboratory (U.S.) and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to DMIC Reports and Memoranda written by Battelle Memorial Institute. Defense Metals Information Center and published by . This book was released on 1968 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on the Fourth Maraging steel Project Review written by Albert M. Hall and published by . This book was released on 1964 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army Research Task Summary written by United States. Army Research Office and published by . This book was released on 1961 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Classification of DMIC Reports and Memoranda by Major Subject written by and published by . This book was released on 1964 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: To aid in quick identification and easy location of specific technical data and information in the various reports and memoranda which have been prepared and distributed by the Defense Metals Information Center, as well as by DMIC's forerunner, the Titanium Metallurgical Laboratory, a classification by major subject matter was prepared. The classification covers reports through DMIC Report 193 and memoranda through DMIC Memorandum 183. (Author).