Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
High Voltage TAL Erosion Characterization
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-4250 - 02-4299
Author: The Development and Characterization of a Two-stage Hybrid Hall/ion Thruster
Author: Peter Young PetersonPublisher:
ISBN:
Category :
Languages : en
Pages : 600
Book Description
High Voltage Tal Erosion Characterization
Author: National Aeronautics and Space Adm NasaPublisher:
ISBN: 9781724113160
Category :
Languages : en
Pages : 30
Book Description
Extended operation of a D-80 anode layer thruster at high voltage was investigated. The thruster was operated for 1200 hours at 700 Volts and 4 Amperes. Laser profilometry was employed to quantify the erosion of the thruster's graphite guard rings and electrodes at 0, 300, 600, 900, and 1200 hours. Thruster performance and electrical characteristics were monitored over the duration of the investigation. The guard rings exhibited asymmetric erosion that was greatest in the region of the cathode. Erosion of the guard rings exposed the magnet poles between 600 to 900 hours of operation. Jacobson, David T. Glenn Research Center NASA/TM-2003-211879, NAS 1.15:211879, E-13561, AIAA Paper 2002-4257...
Proceedings of the ASME Fluids Engineering Division
Author: Journal of Propulsion and Power
Author: 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4200 - 05-4249
Author: 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3900 - 04-3949
Author: Ion Engine and Hall Thruster Development at the NASA Glenn Research Center
Author: Polymer Characterization
Author: Nicholas P. CheremisinoffPublisher: William Andrew
ISBN: 0815518692
Category : Technology & Engineering
Languages : en
Pages : 265
Book Description
This volume provides an overview of polymer characterization test methods. The methods and instrumentation described represent modern analytical techniques useful to researchers, product development specialists, and quality control experts in polymer synthesis and manufacturing. Engineers, polymer scientists and technicians will find this volume useful in selecting approaches and techniques applicable to characterizing molecular, compositional, rheological, and thermodynamic properties of elastomers and plastics.