A multipurpose miniature piston-cylinder diamond-anvil cell for pressures beyond 100 GPa

Review of Scientific Instruments

Volumn 69, Issue 3, 1998, Pages 1423-1425

  Machavariani, G Yu ^a   Pasternak, M P ^a   Hearne, G R ^a,b   Rozenberg, G Kh ^a  

^a TEL AVIV UNIVERSITY   (Israel)

^b UNIVERSITY OF THE WITWATERSRAND   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000475788     PISSN: 00346748     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1148775     Document Type: Article

References (14)

1. 1 Mbar=100 GPa; 1 GPa = 10 kbar.
2. W. C. Moss, J. O. Hallquist, R. Reichlin, K. A. Goettel, and S. Martin, Appl. Phys. Lett. 48, 1258 (1986).
3. J. A. Xu, H. K. Mao, and P. M. Bell, Science 232, 1404 (1986).
4. A. Jayaraman, Rev. Mod. Phys. 55, 65 (1983).
5. D. J. Dunstan and I. L. Spain, J. Phys. E 22, 913 (1989).
6. Typical anvil flats diameters used for pressures in the 100 GPa region are about 0.3 mm and ∼0.05 mm for P>200 GPa. A beveled culet tip is often employed.
7. In the best cases the outside dimensions are in the neighborhood of 5-cm diam by 10-cm high.
8. J. Dunstan and M. Scherrer, Rev. Sci. Instrum. 59, 627 (1988).
9. S. W. Tozer, Rev. Sci. Instrum. 64, 2607 (1993).
10. M. I. Eremets and Yu. A. Timofeev, Rev. Sci. Instrum. 63, 3123 (1992).
11. A miniature opposing-plates DAC was developed and is being successfully operated at our laboratory. It has dimensions of 22 mm in diameter by 15 mm in height and operates in the 0-40 GPa pressure range. See E. Sterer, M. P. Pasternak, and R. D. Taylor, Rev. Sci. Instrum. 61, 1117 (1990).
12. Cocking and concentricity adjustments of the anvils are easily followed with a microscope. Parallelism is achieved by minimizing the optical interference fringes while viewing both culet peripheries allows sensitive lateral adjustment.
13. A total pressure of ∼15 GPa at the culet flat is required to achieve an indented gasket thickness of ∼60 μm. During the process of gasket indentation, the anvils are checked for concentricity and parallelism each time the cell is opened, and adjustments are made, if necessary.
14. G. R. Hearne, M. P. Pasternak, R. D. Taylor, and P. Lacorre, Phys. Rev. B 51, 11 495 (1995).