Characterization of Pressureless Sintered Boron Carbide
Abstract
This report outlines the characterization study of pressureless sintered boron carbide with graphite additive used as a sintering and densification aid on hexagonally shaped and plate-shaped samples of boron carbide. We conducted this investigation to determine whether pressureless sintered boron carbide could be used as a substitute for the baseline hot-pressed boron carbide. The surfaces were characterized with a scanning electron microscope. The samples were tested for strength, hardness, density, and composition using four-point flexure testing, Knoop microindentation, Archimede s method, and x-ray spectroscopy, respectively. These values were then compared with literature values for pressureless sintered boron carbide and hot-pressed boron carbide. We concluded that the substitution was not feasible because of the high-porosity and low-strength values.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2013
- Accession Number
- ADA576131
Entities
People
- Joshua Pomerantz
- Tomoko Sano
Organizations
- United States Army Research Laboratory