Shock-induced solid-state chemical reactivity studies using time-resolved radiation pyrometry. [Between nickel and aluminum]
Time-resolved radiation pyrometry has been used to study materials which undergo solid-state chemical reactions due to shock loading. Shock-induced chemical reactivity in solids is fundamentally different than that in high explosives and other energetic materials because if no volatiles are present the reaction products end up in the condensed, rather than the vapor, state. Bulk property changes accompanying the solid-state reactions may therefore be too small to be observable with wave profile or shock-velocity measurements. However, some solid-state reactions, such as that between metallic nickel and aluminum, are exothermic enough to give rise to a measurable increase in temperature, so pyrometry can be used to detect the reactions. Unfortunately, these measurements are complicated by the large temperature increases generated by other sources. Possible mechanims for generation of these high temperatures, and their effect on the chemical reaction, are suggested.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5401122
- Report Number(s):
- SAND-86-1614C; CONF-861091-3; ON: DE86013576
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALLOYS
ALUMINIUM
CHEMICAL REACTIONS
ELEMENTS
IMPACT SHOCK
INTERMETALLIC COMPOUNDS
LUMINESCENCE
MEASURING INSTRUMENTS
METALS
NICKEL
POWDERS
PYROMETERS
SHOCK WAVES
TIME DEPENDENCE
TRANSITION ELEMENTS