Low-gravity electrodeposition of metals and metal/cermet composites
| Autor: | Hind Abi-Akar, Brian Benson, Clyde Riley, George W. Maybee |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Aqueous solution
Materials science Aerospace Engineering Diamond Cermet engineering.material Suspension (chemistry) Metal chemistry.chemical_compound chemistry Space and Planetary Science visual_art engineering visual_art.visual_art_medium Coagulation (water treatment) Wetting Composite material Chromium carbide |
| Zdroj: | Journal of Spacecraft and Rockets. 27:386-390 |
| ISSN: | 1533-6794 0022-4650 |
| DOI: | 10.2514/3.26155 |
| Popis: | Electrodeposition of metals and stirring experiments that provide suspensions of cermets necessary for electrocodeposition have been carried out in the low-gravity environment produced on a KC-135 aircraft. Variation of the rate of electrodeposi tion was not found to affect the crystalline form of the deposits with our experimental configuration. Stirring experiments carried out to determine the feasibility of suspending and dispersing diamond and chromium carbide particles in aqueous zinc sulfate demonstrated that suspension occurred, but coagulation or clumping was evident in the suspension. Aggregation in the suspension was found to increase as the concentration of the ZnS04 solution was increased. Addition of a negative wetting agent decreased clumping. Comparisons of these results to previous low-gravity electrodeposition results are discussed. Ramifications of these results on the design of apparatus for longer low-gravity experiments are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|