X-ray diffraction study of shock-modified tetragonal phases of SnO[sub 2] and MnO[sub 2]

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:6958117

Newcomer, P; Morosin, B; Graham, R A

X-ray diffraction line-profile analysis on tetragonal forms of Sn02 (cassiterite), Mn02 (pyrolusite), and previously studied Ti02 (rutile), which were subjected to high pressure shock loading, show that residual lattice strain and coherent crystal'' size are a function of shock parameters. An interesting observation on sample of Mn02 concerns the recovery of cubic Mn203 (bixbyite) in the material subjected to 22 GPa, indicating a shock-induced chemical synthesis.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6958117
• Report Number(s): SAND-92-0914C; CONF-9208129--8; ON: DE93002488
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RUTILE
SCATTERING
SHOCK WAVES
TETRAGONAL LATTICES
TIN COMPOUNDS
TIN OXIDES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION