Diacell® Diaclamp
Raman/PL/Fluorescence, Pmax = 100 GPa, T = 300 K, WD = 12 mm, A = 50°
- The high pressure in the Diacell® Diaclamp is achieved by the means of two pairs of left-hand/right-hand bolts, for pressures up to 100 GPa
- The inner piston-cylinder is separated from the outer clamps that are used to generate the load, thus largely avoiding distortions of the piston-cylinder assembly at the highest pressures
- The complex gasket-loading process is facilitated by a easy access to the lower anvil and its associated gasket holder
- The Diacell® Diaclamp may also be manufactured in BeCu, to be compatible with high magnetic field environments
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Description
In this ingenious cell, high-pressures are generated by forcing together two diamond anvils along a common axis, by means of two pairs of left-hand/right-hand M5 bolts.
The DAC has a piston and inner cylinder that are separate from the outer parts of the cell by which load is generated, thus largely avoiding distortions of the piston-cylinder assembly at the highest pressures.
All the anvil adjustments for translation and tilt are on the inner cell, which is easily removed from the outer assembly for maintenance. Alignment marks (in red) assure correct re-assembly.
The Diacell® Diaclamp is designed to allow especially easy and uncluttered access to the lower anvil and its associated gasket ring, thereby facilitating the complex gasket – loading process. The gasket ring takes 10 mm diameter gasket blanks. A small pin is provided to enable gaskets to be replaced reliably.
Four lateral ports are provided, two of which are tapped M3 to provide alternative mounting positions, such as on X-ray arcs.
The Diaclamp may also be manufactured in BeCu, an alloy with a much greater thermal conductivity than the steel from which the standard cells are constructed. With brass screws throughout, these cells are compatible also with high magnetic field environments.
Applications
The Diacell® Diaclamp is suitable for both Optical and X-Ray applications. This cell is particularly useful as a first DAC, because of its simpler sample-loading process when compared to other cells.
Specifications
Cell Material | AISI 440C |
Anvil Support Plate | Tungsten Carbide |
Pressure Mechanism | Screw Drive |
Maximum Pressure | 100 GPa |
Temperature Range | 300 K |
Top Angle | Conical 50º |
Bottom Angle | Conical 52º |
Lateral Access | N/A |
Heating | N/A |
Cooling | N/A |
DAC Diameter | 52 mm |
DAC Height | 29 mm |
Working Distance to Sample | 12 mm |
Numerical Aperture | 0.42 |
DAC Weight | 100 g |
Documents
We have compiled a series of technical documents (brochures, articles, technical drawings, …) which you might find useful to help you understand this product better.
Technical documentation
Technical Drawing
Please contact us for further details on the engineering drawings.
FAQs
What is the maximum pressure I can achieve with the Diaclamp and a given culet size?
Culet size (µm) | 200 | 300 | 400 | 500 | 600 | 800 | 1000 |
Pmax (GPa) (*) | N/A | 98 | 63 | 41 | 28 | 16 | 10 |
(*) The Pmax values are only indicative. The maximum pressure achievable with a DAC is influenced by many others experimental parameters, like the gasket characteristics (material, thickness and hole size) or the pressure transmitting medium.
What makes the Diaclamp unique?
The Diaclamp stands out due to its robust design, capable of achieving pressures of 1Mbar and above. Unlike other diamond anvil cells, its manufacturing process uses grinding techniques for an exceptionally tight fit between the piston and cylinder. This precise fit ensures high stability and concentricity of the diamond anvils, allowing for very high pressure while maintaining a compact size. This compactness is especially beneficial when mounting the cell on spectrometers where space is limited.
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