Image Analysis Study of the Porosity Characteristics of Nickel Sinter
Abstract
A new image-analysis technique is described for measuring the distributions of irregularly shaped pores through the structure of porous electrodes. This technique has been used to measure the porosity characteristics of sintered nickel plaque made by a range of manufacturing processes for use in the nickel electrodes in nickel-hydrogen cells. These characteristics include variations in porosity and pore size through the thickness of the sinter, as well as the uniformity of the sinter. Sinter made using an aqueous slurry process is found to provide the uniformity typically found in dry-powder sinter processes, with the smaller pore sizes typically associated with the alcohol-based slurry sinter process.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 2005
- Accession Number
- ADA436994
Entities
People
- Albert H. Zimmerman
- G. A. To
Organizations
- The Aerospace Corporation