Experimental Method of Producing Porous Tungsten for Ion Rocket Engines PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Experimental Method of Producing Porous Tungsten for Ion Rocket Engines PDF full book. Access full book title Experimental Method of Producing Porous Tungsten for Ion Rocket Engines by Neal T. Saunders. Download full books in PDF and EPUB format.
Author: Neal T. Saunders Publisher: ISBN: Category : Ion rockets Languages : en Pages : 28
Book Description
The effects of particle size and sintering temperature on the permeability of W ionizers were investigated. Tungsten powders of 1, 10, and 20 microns average particle size were sintered at temperatures in the range of 2250 to 2900 F. Results from density measurements, metallographic examination, and N flow tests on disks representing the various combinations of particle size and sintering temperature showed that porosity varies inversely with sintering temperature for 1-micron particles but that sintering temperatures up to 2900 F had no effect on the porosity of samples produced from 10- and 20-micron particles. A method of producing thin porous platelets was developed that utilizes the sintering of compacted 1-micron powder at 2750 F for 20 hr in an H atmosphere. Platelets manufactured by this method were successfully operated in an experimental ion engine. (Author).
Author: Neal T. Saunders Publisher: ISBN: Category : Ion rockets Languages : en Pages : 28
Book Description
The effects of particle size and sintering temperature on the permeability of W ionizers were investigated. Tungsten powders of 1, 10, and 20 microns average particle size were sintered at temperatures in the range of 2250 to 2900 F. Results from density measurements, metallographic examination, and N flow tests on disks representing the various combinations of particle size and sintering temperature showed that porosity varies inversely with sintering temperature for 1-micron particles but that sintering temperatures up to 2900 F had no effect on the porosity of samples produced from 10- and 20-micron particles. A method of producing thin porous platelets was developed that utilizes the sintering of compacted 1-micron powder at 2750 F for 20 hr in an H atmosphere. Platelets manufactured by this method were successfully operated in an experimental ion engine. (Author).
Author: Neal T. Saunders
Author: Neal T. Saunders
Author: 
Author: United States. National Aeronautics and Space Administration
Author: Vincent David Barth
Author: 
Author: 
Author: 
Author: United States. National Aeronautics and Space Administration
Author: 
Author: United States. Superintendent of Documents