Accession Number:

AD0461152

Title:

MECHANISM OF THE THERMAL IGNITION OF EXPLOSIVES

Descriptive Note:

Corporate Author:

PICATINNY ARSENAL DOVER NJ FELTMAN RESEARCH LABS

Personal Author(s):

Report Date:

1965-04-01

Pagination or Media Count:

27.0

Abstract:

The temperature of an explosive placed into a furnace having any temperature cannot perceptibly exceed the boiling point of the explosive. If the temperature of the furnace is considerably higher than the boiling point, the maximum temperature in the condensed phase will differ significantly from the temperature of the furnace. Intensive local heating that leads to the development of a flame and ignition can therefore arise only in the vapor of the substance or a mixture of the vapor with air and products of decomposition. Ignition may arise either at a considerable distance from the condensed phase or in the immediate vicinity of this phase within bubbles of foam that form during intensive decomposition. The phenomenon of the upper limit of thermal ignition is due first of all to the fact that at high temperatures under definite conditions the vapors of the explosive flow rapidly into the upper, relatively cold part of the test tube, and do not have time to ignite.

Subject Categories:

  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE