Sublimation Properties of Pentaerythritol Tetranitrate Single Crystals Doped with Its Homologs
Abstract
Pentaerythritol tetranitrate (PETN) is a secondary explosive used extensively in military and commercial applications. Coarsening of PETN during long‐term storage changes the physical properties such as surface area and particle morphology which are important factors in initiation and performance. Doping of impurities was proposed to slow the coarsening process since impurities were shown to modify both the kinetic and thermodynamic properties. In this paper, we discuss how doping of PETN with its homologs of dipentaerythritol hexanitrate (diPEHN) and tripentaerytritol octanitrate (triPEON) affect kinetic and thermodynamic parameters. Pure and homolog doped PETN single crystals were prepared by solvent evaporation in acetone at room temperature. Doping concentrations for this study were 1000 ppm, 5000 ppm, and 10000 ppm. Activation energy and vapor pressure of pure and doped PETN single crystals were obtained from thermogravimetric analysis data.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 20, 2012
- Source ID
- 10.1002/prep.201100114
Entities
People
- Amitesh Maiti
- Brandon L. Weeks
- Richard H. Gee
- Sanjoy K. Bhattacharia
Organizations
- Office of Naval Research