Back to Search
Start Over
Performance of semi-sintered ceramics as pressure-transmitting media up to 30 GPa.
- Source :
- High Pressure Research; Sep2010, Vol. 30 Issue 3, p443-450, 8p, 1 Diagram, 3 Charts, 2 Graphs
- Publication Year :
- 2010
-
Abstract
- Semi-sintered MgO- and ZrO2-based ceramics are the conventional materials used as a pressure-transmitting medium (PM) for large-volume high-pressure experiments. Our experimental data for both MgO and ZrO2 provide similar pressure generation efficiency. The major requirement for a PM material is low compressibility. However, our experimental data suggest that semi-sintered types of these ceramics are more compressible than can be expected. For instance, the apparent compressibility of semi-sintered magnesia is 35% and 60% higher than the lattice compressibility of MgO at 15 and 30 GPa, respectively. The difference in lattice and apparent compressibilities of semi-sintered ceramics is most probably caused by a residual porosity. The use of a low-porous pressure medium should be considered as an improvement of pressure generation efficiency of high-pressure apparatuses. [ABSTRACT FROM AUTHOR]
- Subjects :
- CERAMICS
COMPRESSIBILITY
MAGNESIUM oxide
ZIRCONIUM oxide
SINTERING
Subjects
Details
- Language :
- English
- ISSN :
- 08957959
- Volume :
- 30
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- High Pressure Research
- Publication Type :
- Academic Journal
- Accession number :
- 53539516
- Full Text :
- https://doi.org/10.1080/08957959.2010.515079