Diamonds Bonding Fit Tool

Diamonds bonding fit tool

Used primarily to glue the anvil diamonds on the seat in DAC cell. The fine surfaces of support permit a very tight action during the bonding phase. Universal tool works with all brands of anvil diamonds and seats.
The diamond mounting template is used to block diamonds to tungsten carbide, boron nitride and other diamond seats with epoxy glue or ceramic. We offer a spring loaded threaded stainless steel tool. The universal design to work both with diamonds to allow table and with conical support diamonds (Boehler type).
Jigs accept seats from 9 to 18mm in diameter and a wide range of seat thicknesses from 3 to 12mm. Seat position is adjusted by M3 knurled screws. A typical plunger has a through hole, allowing the diamond culet to be illuminated for alignment.

TECHNICAL DATA

PRESSURE CONTROLSpring / Plastic
MATERIALStainless steel alloy
LATERAL ACCESS360°
BOTTOM ACCESSMicroscope view
DIMENSIONSDIAMETER 55mm Height 62mm

HIGHLIGHT

  • Full lateral access
DAC by Screws Large Open Angle

Diamonds anvil cell with large open angle

Large open angle for one DAC with pressure-generating by screws.

The cell works with a simple piston-cylinder-type with a

Symmetrical conical axial opening from both sides, suitable for powder and single-crystal X-ray diffraction and also for Raman spectroscopy. The BX90-L DAC is an extremely wide conical opening on both sides of the cell.

The piston-cylinder design permit a mechanical stability under high mechanical loads, as well as simplicity, reliability, and a possibility to increase pressure which allows pressure adjusting without dismounting the cell from a holder.

The DAC loading force is produced by four screws and to make pressure control are used conical spring washers.

The DAC has enabled to scientists to obtain phase stability information. Scientists constantly endeavor to improve DAC experimental techniques in order to obtain to obtain further information about the physical properties of any material. With the addition of a laser or a resistance heater or with cryogenic cooling, scientists can also use the DAC to explore the pressure, volume, temperature relationship and the resulting structural changes of any material its equation of state and phase diagram. Higher pressure and increased temperature may force further structural changes, until the material loses its crystal structure entirely that is, it melts.

TECHNICAL DATA

PRESSURE DRIVERMembrane
CELL MATERIALInconel steel
TOP ANGLETotal angle 70° up on request
BOTTOM ANGLETotal angle 70° up on request
MAX TEMPERATURE200°K up on request
DIMENSIONSDiameter 50mm Height 36mm

HIGHLIGHT

  • Easy to set
  • Large open angle
  • Lateral access investigation
DAC By Screws Symmetric 60°

DAC by screws with 60° optical access

The diamond anvil cell is the most versatile pressure device generating force on a sample that can be investigate by the optical transparency of diamonds.

The Symmetric DAC cell 60° is a symmetrical diamond anvil cell for high pressure study up to 50 GPa. The pressure depends from the diamond culet size.
The device works by a screw driven mechanism. Two left handed and two right handed screws.
Furthermore the cell is realized with a symmetrical total conical aperture of 60°. It also has two lateral access holes.

The DAC has enabled to scientists to obtain phase stability information. Scientists constantly endeavor to improve DAC experimental techniques in order to obtain to obtain further information about the physical properties of any material. With the addition of a laser or a resistance heater or with cryogenic cooling, scientists can also use the DAC to explore the pressure, volume, temperature relationship and the resulting structural changes of any material its equation of state and phase diagram. Higher pressure and increased temperature may force further structural changes, until the material loses its crystal structure entirely that is, it melts.

TECHNICAL DATA

PRESSURE DRIVERSpring
BODY CELL MATERIALStainless steel material and other on request
TOP ANGLETotal angle max 60° on request
BOTTOM ANGLETotal angle max 60° on request
MAX PRESSUREUp to 20 GPa depends from culet dimension
DIMENSIONSDiameter 48mm Height 35mm

HIGHLIGHT

  • Easy to arrange
DAC By Screws Symmetric 90°

DAC cell and the symmetrical open angles

The diamond anvil cell is the most versatile pressure device generating force on a sample that can be investigate by the optical transparency of diamonds.

The Symmetric DAC cell 90° is a  diamond anvil cell for high pressure study up to 50 GPa. The pressure depends from the diamond culet size.
The device works by a screw driven mechanism. Two left handed and two right handed screws.
Furthermore the cell is realized with a symmetrical total conical aperture of 90°. It also has two lateral access holes.

TECHNICAL DATA

PRESSURE DRIVERSpring
BODY CELL MATERIALStainless steel material and other on request
TOP ANGLETotal angle max 90° on request
BOTTOM ANGLETotal angle max 90° on request
MAX PRESSUREUp to 20 GPa depends from culet dimension
DIMENSIONSDiameter 48mm Height 28mm

HIGHLIGHT

  • Easy to arrange
  • High pressure and temperature
  • Vacuum vessel to include DAC cell
Ruby fluorescent pressure measurement system

Product Code: RDS-013

a ruby pressure detector

Ruby fluorescent pressure measurement system

The ruby lines detector or ruby fluorescent pressure measurement system is e compact box designed to collect the fluorescence emission of a small ruby chip placed inside the sample under pressure in the Diamond Anvil Cell (DAC).  Photoexcitation is provided by a Laser source at  532 nm.
A long working distance microscope, objective 20X, ensures high efficiency of fluorescence collection and good quality sample image. The fluorescence signal is sent through a dedicated optical fiber system  to a compact spectrometer. The side of the microscope has an optical entrance which allows, using the same microscope objective, to enlighten the sample for the visual observation. The ruby lines investigation employs a microscope technique requiring the addition of multiple optical instruments, the laser to excite the fluorescence of the ruby crystal, focusing optics and fiber optic for collection and trasmission of fluorescence. A PVM regulator permit to control lighting and laser parameters. The system is assembled with the spectrometer. The ruby lines are investigate to measure the pressure by a related software. RLW-001
The regulator of the power for the laser power and the sample lighting LED is inserted in a console fixed on the front of the microscope. The console can be separated for remote control.

Each part can sell separately related the customer or experiment’s needs.

The microscope can work in vertical (standard) or horizontal poisition.

Include or sold separately 
RLS-S01 Ruby lines spectrometer 
RLM-F02 Microscope 
RLC-F02 Calibration neon lamp

TECHNICAL DATA

MICROSCOPY FOR RUBY LINES SYSTEM (RLM FO2)200x Objective-Green or Blue laser-Digital Camera
RUBY LINES SPECTROMETER (RLS-S01)Resolution 0,2nm Spectral range 690/740nm F/N f/3
RUBY CALIBRATION NEON LAMP (RLC-F02)Neon Emission Lines
OPTICAL FIBER50 microns diemeter

HIGHLIGHT

  • Compact and portable
  • High efficiency geometry
  • Very sensible array
Ruby Spectra Software

Product Code: RLW-001

Measuring DAC's pressure with the Ruby Spectra Software

The owner software dedicated to researchers useful to determine pressure value inside a dac sample room. Combined with our spectroscopy system Ruby Spectra Software 150 is destined to became our best solution to analyze pressure using ruby fluorescence peacks. It permit to calibrate and fit curve and analyze pressure inside cell. The measurement is performed through different calibrations of the R1 line shift, established in different ways depending upon pressure conditions and ranges.The fitting procedure allows you to fit the fluorescence ruby line R1 and R2 using two Lorentziano curves.

Once you optimized (maximized) the intensity of the fluorescence signal using the “Align” procedure you should write down the rough position of the two lines and then as input parameters for the fitting procedure.

TECHNICAL DATA

MICROSCOPE20x Mitutoyo objective WD 20mm
EXCITATION LASERNdYag 532 Green lines
DIGITAL CAMERAS 3MP MCOS sensor
LIGHTINGWhite LED
OPTICAL FIBER125 Microns

HIGHLIGHT

  • Easy to use and calibrate
  • Value of pressure directly
Heater for DAC cell

Product Code: HTD-800

Heater for DAC cell

Heater for DAC Cell is  equipped with a miniature resistive heating element for the simultaneous application of temperature

A reliable high-performance heating method using resistive heaters and a membrane driven diamond anvil cell (DAC) is realized. It enables almost perfect isobaric conditions for temperatures varying from 300K to 800K

One heater is mounted on the external body of DAC and use electrical power 200 W to achieve sample temperatures up to 800 K. If the optical access can permit is preferred to put the cell inside a vacuum chamber to prevent the oxidation of materials and grow up the temperature  and to sustain stable heating to over 800 K.

A K-type thermocouples mounted close to diamonds is used to control the temperature. The approach can be used for Raman spectroscopy and IR study at high pressures and temperatures. A Rhenium gasket material permits stable operation of DAC.

An external temperature control manage the parameters of current and temperature.

TECHNICAL DATA

TEMPERATUREUP 800°K
RESISTIVE HEAD500 Watts
PREVENT OXIDATIONArgon flux
VACUUM VESSELAvailable
CONTROLLERPower supply and temperature control

HIGHLIGHT

  • High temperature and gas to preserve oxidation
  • DAC cell in alloy steel
  • Temperature control
Cooling device for DAC cell

Product Code: DCU-CY1

Cooling device for DAC cell

Cooling device for DAC cell  is a DAC cell  embodied in e large copper block, attached to the cold tip of a low vibration closed cycle cryostat systems providing a controlled low temperature vacuum environment, vacuum chamber is it. The cryostat, works on the closed helium circuit. Imdium material is a thin sheet placed for a termic contact from copper block and the cryostat tip. The sample is positioned on the sample holder (DAC cell) in good thermal contact with and surrounded by the vacuum. To change the sample, the cryostat must be warmed at room temperature, the vacuum released and the outer case and radiation shield removed.

A remote control for DAC is necessary to change the pressure inside the sample.

The vacuum chamber provide cryogenic environments for optical measurements for DAC cell. The designs combine the best optical access with the capability to operate in the temperature range 15 to 500 K. Benefits include a wide optical access for light collection measurements. Besides an optimized design provide an excellent optical access and a short space to permit to focalize beam with a objective 20mm WD. The large acceptance angle makes them ideal for light collection measurements (for example Raman studies). Optical measurements that cover a broad range of wavelengths may exceed the transmission band of a particular window material. All windows in the cooling devices are demountable. The present vacuum vessel can accommodate various types of diamond-anvil cells simply by changing the holder or different types of cold unit. High temperatures can be also used. The sample is located into the DAC. Changing the sample simply involves removing the cell, replacing the sample and inserting the cell back into the cryostat. The system can be adjusted in  X-Y-Z with manual or motorized stages how needs require.

TECHNICAL DATA

CRYOSTAT TYPEOXFORD Optistat CF-V
VESSEL ROOMAluminium and glass window
COLD UNITCopper flange and Indium
FIXED RADIATION SHIELDCopper
MEMBRANE CONNECTION 1/16" capillary
ADDITIONAL DIODE SENSORLakeshore type

HIGHLIGHT

  • Remote control of pressure inside DAC
  • No vibration
  • Very low temperature
  • Support to x-y-z movement
Gas loading system for DAC cell

Product Code: CRO-021

Gas loading system

LOTO-eng gas-loading system for DAC cell  permit to load liquid gas. Only the type of DAC endowed with a membrane can be used during gas loading, the remote-control system allows sample pressure to increase while the DAC is still immersed in liquid gas. This technique allows DACs to be loaded with condensed gases such as nitrogen, argon, oxygen, etc. The advantage over gas loading is the higher initial density that determines a smaller volume reduction under compression.

The gas-loading system has been constructed to load diamond-anvil cells with various kinds of gases at room temperature. The gases either serve as hydrostatic pressure media or samples by themselves. The present high-pressure vessel can accommodate various types of diamond-anvil cells simply by changing the holder.

How it works?

The gas-loading apparatus you can see on the layout below. The DAC is placed inside the gas-loading chamber and its flange closed.  Fluxing of the gas-loading with pure argon gas will guarantee the presence of only argon in the chamber.  Is possible to use a vacuum pump to evacuate all the impurity inside.
Then the gas-loading may be placed inside the vessel which will also hold the liquid nitrogen.  Liquid nitrogen is then spilled in to this vessel, while pure argon gas is let into the DAC’s chamber at an optimum rate. The level of liquid argon collected in the vessel is monitored through the top glass viewing port of the gas-loading helped of a blue light. Once the desired level, surely over the diamond anvil is reached, the flow of liquid gas can be stopped a.  The DAC by remote control is then tightened so that liquid gas becomes trapped in the gasket hole between the diamond anvils.
The cell then be removed from the gas-loading and slowly brought back to room temperature.  A low temperature heat exchanger ensures a very efficient cooling and condensation of the argon gas.  A special microvalve made by LOTO allows to close the capillary and disconnect the DAC from the gas loading kepping pressure in the membrane.The valve is small so to fit together with the DAC in the gas or cryogenic loading chambers. For this last purpose the microvalve has been tested up to 200 bar at room and at liquid nitrogen temperature. In this way is possible to linked again the cell to the pressure device.

TECHNICAL DATA

GAS FILLING USEDArgon, Oxigen, Nitrogen etc. Helium not admitted
DAC TYPE Remote control by membrane
VACUUM PUMP10-3 bar
CUULING GAS Nitrogen
LED LIGHT Blue

HIGHLIGHT

  • Easy to change gas
  • Remote control by membrane using helium gas
  • Control gas filling