Accession Number:

ADA222594

Title:

Thermal Jetting Effects of SHS Reacted Titanium Diboride

Descriptive Note:

Final rept. Jan-Dec 1989,

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1990-04-01

Pagination or Media Count:

32.0

Abstract:

Thermal jets consisting of rapidly evolving gaseous and particulate materials are formed during the highly exothermic,well contained TiB2 SHS reactions. The relative magnitudes of the effects of ignition location, precursor powder weight, boron type, titanium purity and nozzle orifice dimension on the jetting action have been measured. The thermal effects of the jets on surrounding materials are found to be strongly correlated with the amount of product material ejected from the reaction vessel. In particular, the most active parameters have been determined to be the nozzle orifice size and the type of precursor powder. This study has also yielded a method for controlling the deposition of jet materials onto nearby surfaces. JES

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE