Download or read book Condensation in a Rapidly Expanding Metal Vapor inert Gas Mixture written by Philip M. Sherman and published by . This book was released on 1967 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the condensation of metal vapor in an inert carrier gas accelerated through nozzles was carried out. The mixture used is primarily zinc vapor in helium gas. Two types of condensation measurements are made. Measurement of particle size is made in the tunnel. Determination of condensation onset point is made in the exploding-wire system. Particle size is determined by means of a shuttered sampling device developed for the purpose combined with electron microscope techniques evolved. The condensation onset point is determined by nozzle static pressure measurement. Simplified computational analyses are made to predict conditions for the measured condensation onset point. They are also used as a guide for the more complex two component non-equilibrium expansion computation which may predict the location of the onset point as well as particle size. Measurements of particle size at the exit of a nominal Mach 25 (helium) nozzle showed a major portion of the total particles to be less than approx. 70 A in diameter. The pressure measurements made in a nominal Mach 3 nozzle indicated a large degree of supercooling. (Author).

Download or read book condensation in a rapidly expanding metal vapor inret gas mixture written by p.m. sherman and published by . This book was released on 1967 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book THE CONDENSATION OF A METAL VAPOR IN A RAPIDLY EXPANDING INERT CARRIER GAS written by DONALD DEAN MCBRIDE and published by . This book was released on 1969 with total page 213 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 1972 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONDENSATION OF METAL VAPOR IN A SUPERSONIC CARRIER GAS written by P. M. SHERMAN, D. D. McBRIDE, T. CHMIELEWSKI and published by . This book was released on 1969 with total page 256 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 828 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 1967 with total page 212 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 1965-07 with total page 1698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanocrystalline Materials written by Aleksandr Ivanovich Gusev and published by Cambridge Int Science Publishing. This book was released on 2004 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the monograph, the first of this type in the world, the authors discuss systematically the current state of investigations into nanocrystalline materials. The experimental results on the effect of the nanocrystalline state on the microstructure and the mechanical, thermophysical, optical, and magnetic properties of metals, alloys and solid-phase compounds are generalised. Special attention is given to the main methods of production of isolated nanoparticles, ultrafine powders and dense nanocrystalline materials. The dimensional effects in isolated nanoparticles and high-density nanocrystalline materials are discussed in detail, and the important role of the interface in the formation of the structure and properties of dense nanocrystalline materials is shown. The modelling considerations, explaining special features of the structure and anomalous properties of substances in the nanocrystalline condition, are analysed.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1987-04 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book initial studies of condensing metal vapors carried by expanding inert gases written by kenneth r. sivier and published by . This book was released on 1965 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas Phase Synthesis of Nanoparticles written by Yves Huttel and published by John Wiley & Sons. This book was released on 2017-03-01 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first overview of this topic begins with some historical aspects and a survey of the principles of the gas aggregation method. The second part covers modifications of this method resulting in different specialized techniques, while the third discusses the post-growth treatment that can be applied to the nanoparticles. The whole is rounded off by a review of future perspectives and the challenges facing the scientific and industrial communities. An excellent resource for anyone working with the synthesis of nanoparticles, both in academia and industry.

Download or read book OAR Cumulative Index of Research Results written by and published by . This book was released on 1967 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Industrial Heat Transfer written by Alina Adriana Minea and published by CRC Press. This book was released on 2012-10-02 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Industrial Heat Transfer presents the basic principles of industrial heat transfer enhancement. Serving as a reference and guide for future research, this book presents a complete approach, from redesigning equipment to the use of nanofluids in industry.Based on the latest methods of the experiment and their interpretation, this book pr

Download or read book Rarefied Gas Dynamics written by Bernie D. Shizgal and published by AIAA. This book was released on 1994 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initial Studies of Condensing Metal Vapors Carried by Expanding Inert Gases written by Kenneth R. Sivier and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A report is presented on the progress of an experimental investigation of the condensation of metal vapors carried by an expanding inert gas initially at high pressure. Three zinc-in-helium tests in the Hotshot tunnel have indicated that the metallic condensate occurs in the form of very small particles; most particles were found to have diameters of from 0.01 to 0.1 microns. These particles were collected on impact probes from the hypersonic nozzle flow and analysed by electronmicroscopy. A spectrographic analysis of the particle samples showed that roughly one percent by mass of contaminants (principally copper, iron and silicon) were added to the zinc in the hotshot arc chamber. In addition to direct particle sampling, the techniques of light scattering and photomicrography (direct photography of the condensed particles) were investigated. The study of light scattering progressed to a bench set-up evaluation and calibration of a system that measures light attenuation by the scattering medium. Although indicating the possibility of the photography of one micron diameter particles traveling at high speed, the study of the photomicrography technique was discontinued in view of the very small particle sizes indicated by the direct samples from the zinc-in-helium tests. (Author).