Products Diamonds « Back to Products

(Partial) Perforations

Perforated anvils

Diamond backing plates have the following advantages:
 
  • Substantial reduction in background for all types of radiation(IR, visible, UV or x-rays).
  • Substantial reduction in the interfering "red" light fluorescing from diamonds at P>100 GPa.
  • Substantial savings in price due to small anvil weight(W ~ 0.02 .C)

Holes are laser-drilled in the form of a truncated cone. The base diameters are to fit the dimensions/apertures of the carbide backing plates
Parameters can be made according to your requirements.

Partially perforated anvils from the table side
Partially perforated anvils from the table side have the following advantage:
  • Substantial reduction in background for all types of radiation (IR, visible, UV or x-rays).
Parameters can be made according to your requirements.
Example 1:  C = 0.30 Example 2:  C = 0.30
  W = 0.30   W = 0.10
  D = 0.30   D = 0.20
A = 16° A = 16°
  => 12 to 15 Gpa   => 43 GPa

Partially perforated anvils from the culet side

Partially perforated anvils from the culet side have the following advantage:
  • Substantial increase of sample volume is made possible.
Parameters can be made according to your requirements.
(Partial) Perforations
 
 
 
 

Pictures

Perforated anvil
Focus on hole at the table side, overview Focus on hole at the culet side
Focus on blind hole
sideways
Focus on hole end at the culet side
overview
Partially perforated anvil from the table side:
Focus on blind hole entrance
at the table side
Focus on blind hole end
at the culet side
Focus on blind hole
sideways
Focus on blind hole end at the culet side
overview
Partially perforated anvil form the culet side
culet: 0.50 mm, perforation diameter: 0.20 mm,
depth of perforation: 0.20 mm:
Focussed on top of culet
Topview
Focussed on top of culet
Topview
Focussed on bottom of perforation
bottomview(=through table)
Focussed on bottom
topview

Examples of typical requests for quote

Diamond anvil, type Ia, Boehler-Almax design, 16-sided, 3.10 mm – 70°, culet of 0.30 mm, (100)-oriented, partially perforated from the table side, diameter of end of partial perforation of 0.20 mm, remaining diamond thickness of 0.30 mm, aperture of 16°:

Article nr.: P01036
Quantity: 4 anvils.

Publications

A perforated diamond anvil cell for high-energy x-ray diffraction of liquids and amorphous solids at high pressure. (Published online: 29 March 2010, Review of sicentific instruments 81, 035110 (2010)) Emmanuel Soignard, Chris J. Benmore, and Jeffery L. Yarger

The DAC presented in this article is designed to study amporphous materials at high pressure using high-energy x-ray scattering (>60 keV) using laser-perforated diamonds.A small diameter perforation maintains structural integrity and has allowed us to reach pressures > 50 GPa, while dramatically decreasing the intensity of the x-ray diffraction background (primarily Compton scattering) when compared to studies using solid diamonds. This cell design allows us for the first time measurement of x-ray scattering from light (low Z) amporhous materials. Here, we present data for two examples using the described DAC with one and two perforated diamond geometries for the high-pressure strucural studies of SiO2 glass and B2O3 glass.

Please click here to download the paper Feng, Y. et al. Hidden one-dimensional spin modulation in a three-dimensional metal. Nat. Commun. 5:4218 doi: 10.1038/5218 (2014).