Shock compression of quartz and aluminum powder mixtures
- Energetic Materials Research and Testing Center, New Mexico Tech, Socorro, New Mexico 87801 (United States)
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, (United States)
- Advanced Materials Physics and Devices, Sandia National Laboratories, Albuquerque, New Mexico 87185, (United States)
We report about the shock-compression response of highly porous (55{percent} and 65{percent} dense) mixtures of 4Al+3SiO{sub 2} powders having shock-induced phase transitions and chemical reactions. Shock recovery experiments were performed using the CETR/Sawaoka plate-impact system (P=40 to 100 GPa) and the Sandia Momma Bear A Comp B fixture (P=22 to 45 GPa). The recovered compacts contained the high pressure stishovite phase, products of chemical reaction, as well as unreacted constituents. The reaction products formed included Al{sub 2}O{sub 3}, metallic Si (ambient and high pressure phases), SiAl intermetallic, and kyanite (Al{sub 2}SiO{sub 5}). The shock-induced chemical reaction in 4Al+3SiO{sub 2} powder mixtures, appears to have been accompanied (or assisted) by the formation of stishovite, a high pressure phase of quartz. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 587168
- Report Number(s):
- CONF-950846--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 370; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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