Diacell® LeverDAC-Maxi
FTIR/Raman Spectroscopy, Mössbauer, Pmax = 50 GPa, Tmax = 800 K , WD = 10 mm, A = 52°
Diacell® LeverDAC Series
- DAC based on a leverage mechanism designed to bring the diamond anvils together. This is the original design of diamond anvil cells
- Specially suited for large area of high pressure optical spectroscopy. It has a numerical aperture of 0.44
- Diamond anvils are mechanically force fitted into rings, a unique feature of Diacell® Diamond Anvil Cells to avoid repetitive epoxing
- Optional internal resistive heater enables the operation of the LeverDAC-Maxi to temperatures of order of 800 K
- The lever arm drive unit can be disconnected from the cell to facilitate interfacing to spectrometers
- Maximum pressures of up to above 50 GPa may be obtained with the Diacell® LeverDAC-Maxi.
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Description
The majority of high pressure research is currently conducted at pressures below 50 GPa. Diacell® LeverDAC-Maxi design has consequently been optimised for use below 50 GPa, and with the addition of an internal ring heater is capable of raising the sample temperature up to 800 K, thereby making accessible an enormous area of P-T space for investigation.
Applications
The Diacell® Lever DAC-Maxi is suitable for many kinds of physical investigations including electronic, infrared, far-infrared, Mössbauer, and Raman spectroscopy, as well as electrical measurements and energy-dispersive X-ray diffraction.
Leading Brand Spectrometers Compatibility
The LeverDAC-Maxi ease of use and versatility has been endorsed by Renishaw as this diamond anvil cell can interface on Renishaw Raman systems (such as the inViaTM confocal Raman microscope and VisraRM Raman analyser) part of their Environmental cells and sample stages. For more details click here.
Specifications
| Cell Material | AISI 440C |
| Anvil Support Plate | Tungsten Carbide |
| Pressure Mechanism | Lever Arm Drive |
| Maximum Pressure | 50 GPa |
| Temperature Range | 295 to 800 K |
| Top Angle | Conical 52º |
| Bottom Angle | Conical 52º |
| Lateral Access | N/A |
| Heating | Internal ring heater (option) |
| Cooling | Cold Air or Evaporated Liquid Nitrogen |
| Lever Arm Length / Width | 141 mm / 76 mm |
| DAC Height | 45 mm |
| Working Distance to Sample | 10 mm |
| Numerical Aperture | 0.44 |
| DAC Weight | 170 g |
Maximum pressure is dependent upon the culet size of the anvils. Almax easyLab is committed to its policy of continuous improvement. Specifications may change without notice. easyLab and Diacell are registered trademarks of Almax easyLab.
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.
Articles
2016 – Paschoal et al. – Vibrational Spectroscopy of Ionic Liquids
Spares, Accessories and Options
Our diamond anvil cells are aligned and mechanically tested before leaving our factory on their way to your laboratory.
They also come supplied with the required basic tooling, including gasket blanks, to use them. All is contained in the transportation casing to move around laboratories easily.
Below you can find some of the accessories and spares you might also consider. If you cannot find what you need, please do not hesitate to contact our team.
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Diamond Anvils 2.5 mm Diacell® design diamond anvils Product code: [P00131] |
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Steel Anvil Rings Anvil ring for the 2.5 mm diamond anvils Product code: [M50004] |
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Anvil Support Plate 52 degree ,Tungsten carbide seat Product code: [P00128] |
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Programmable Power Supply PS-03 – Keithley/Temperature Reader including Labview based programm Product code: [A75060] |
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Ring Heater Ring heater & type-K thermocouple Product code: [A55100] |
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Gasket Blanks 5.00 mm/ 0.25 mm thick Stainless Steel gasket blanks Product code: [P00110] |
FAQs
What is the maximum pressure I can achieve with the LeverDAC-Maxi and a given culet size?
| Culet size (µm) | 200 | 300 | 400 | 500 | 600 | 800 | 1000 |
| Pmax (GPa) (*) | 114 | 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.
Why am I reaching the limit of the worm gear at 9 GPa instead of almost 50 GPa with C=0.40mm?
This issue could be due to the arrangement and number of springs. To ensure optimal performance:
- Verify that there are 9 springs.
- Arrange 8 of these springs nested in pairs.
- Place the last spring with its larger conical section facing against the thrust bearing.
This configuration should help you achieve the expected pressure according to our estimated maximum P vs culet size table.
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