Thermophysical Property Determinations Using Transient Techniques.
Abstract
In this program, determinations of the thermophysical properties of HMX, RDX and AP are being made. Two thermal properties are being measured: (1) specific heat and (2) thermal diffusivity. The product of these results and the densities of the propellants, yields the thermal conductivity of the material. Specific heat as a function of temperature for single crystals of HMX in both their beta and delta phases have been completed. Delta phase results were obtained using two techniques: (1) short range results from 477-486 degrees K just after the phase transition (beta to delta), and (2) extended range results from 415-485 degrees K. The second technique was possible due to hysteresis in the conversion of delta-HMX back to beta-hmx following cooling from above the phase transition temperature. The delta phase results for a powdered blend of HMX were obtained and yielded good agreement of the single crystals. Also, the specific heat of HMX inter-mixed with decomposition products was found to be slightly larger than for pure HMX.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 14, 1983
- Accession Number
- ADA130707
Entities
People
- L. G. Koshigoe
- R. E. Taylor
- R. L. Shoemaker
Organizations
- Purdue University