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2611051 
Journal Article 
Performance of semi-sintered ceramics as pressure-transmitting media up to 30 GPa 
Shatskiy, A; Litasov, KD; Terasaki, H; Katsura, T; Ohtani, E 
2010 
Yes 
High Pressure Research
ISSN: 0895-7959
EISSN: 1477-2299 
30 
3 
443-450 
WOS:000285460200009 
Semi-sintered MgO-and ZrO(2)-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 ZrO(2) 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. 
Kawai; semi-sintered ceramics; MgO; ZrO(2); compressibility