DEVELOPMENT AND TEST OF HIGH ENERGY SOLID PROPELLANTS.
Abstract
The objective of this contract is to conduct theoretical and experimental investigations resulting in the demonstration of beryllium hydride (LMH-2) solid propellants delivering in excess of 280 lbf-sec/lbm at standard conditions. The program consists of three tasks: Analysis and Data Correlation; Formulation and Ballistic Evaluation; and Advanced Concepts. Data correlations were completed and LMH-2 formulations were designed which were predicted to meet the program objective. Beryllium analog formulations of the proposed LMH-2 systems were also designed for formulation screening. The laboratory work included determination of processibility, stability, sensitivity, mechanical properties, strand burning rates, and combustion efficiency. Data from the beryllium firings indicate that impulse efficiency is still increasing with increased flame temperatures above 3900 K and that good impulse efficiency (about 93 percent) can be achieved with 15.5% beryllium systems, which are equivalent to the metal level obtained with 19% LMH-2 loadings. Photomicroscopy and liquid separation techniques indicated that the material primarily was free LMH-2 and free AP; a portion of the material was 75- to 150-micron agglomerates with AP in the center and LMH-2 particles adhered to the surface of the AP crystal. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 28, 1966
- Accession Number
- AD0369071
Entities
People
- G. R. Gibson
- J. L. Judkins
- R. F. Keller