Pressure-density behavior for AlN, Al/sub 2/O/sub 3/, SiO/sub 2/, TiB/sub 2/ and TiC powders up to 3. 5 GPa

Technical Report · Fri Jun 01 00:00:00 EDT 1984

DOI:https://doi.org/10.2172/6188988· OSTI ID:6188988

Weed, H C

As part of a program to model the behavior of ceramic bodies suitable for high-strength, low-density applications, the pressure-density characteristics are determined for AlN, Al/sub 2/O/sub 3/, SiO/sub 2/, TiB/sub 2/, and TiC powders at 20/sup 0/C and a strain rate of 2 x 10/sup -4//sec. The pressure range is 0.11 MPa to 3.5 GPa. Both the loading and unloading cycles are examined. The pressure-density behavior can be represented by an empirical equation of state similar in functional form to the Birch-Murnaghan equation. The logarithm of the net compaction decreases linearly with the initial density ratio for AlN powder, and may do so for the others. The results constitute a database for testing models of powder behavior such as the P-..cap alpha.. model.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6188988
• Report Number(s): UCID-20302; ON: DE85006146
• Resource Relation: Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM NITRIDES
MECHANICAL PROPERTIES
ALUMINIUM OXIDES
SILICON OXIDES
TITANIUM BORIDES
TITANIUM CARBIDES
CERAMICS
COMPACTING
EQUATIONS OF STATE
EXPERIMENTAL DATA
POWDERS
PRESSURE EFFECTS
VERY HIGH PRESSURE
ALUMINIUM COMPOUNDS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
DATA
EQUATIONS
INFORMATION
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties