DAC cell IR Microscopy use

DAC cell IR Microscopy use

The BRI-160 DAC is a diamond anvil cell of a particular shape, such that it can be adapted to a commercial microscope. Due to the constraints imposed by its use under a microscope, the access to the pressure regulation system is lateral, operated by a long wrench which operates a screw flange in a direct drive pressure system. This transmits the force  to the diamond anvil's seats to generate high pressure on the  sample. A Belleville spring allows a smooth pressure control.

Diamond Anvil Cell technology is nowadays within the reach of even the smallest physics or chemistry laboratory. The simplicity of this device and its affordable price permit any interested scientist to perform measurements at pressures in the 100 GPa range and above. By combining the DAC with different investigation techniques, from the simplest ones, as microscope visual observation, through optical or Infrared spectroscopy, Raman spectroscopy, to synchrotron x-ray scattering, researchers all around the word continues to investigate the changes under pressure of virtually any material. LOTO-eng manufactures a variety of types of DAC, among which, for sure, the one suitable for your purpose. LOTO-eng specialists will help you to identify the most suitable DAC cell, accessories and loading technique to meet your needs, in accordance with your scientific goal and your budget.

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 60mm Height 18mm

HIGHLIGHT

  • Easy to align
  • Good control of pressure by a dedicate key
  • Modular body cell
Membrane DAC for High Temperature

DAC for high temperature

The BX9-HT0 DAC is a diamond anvil cell for high temperature studies. In this model the sample pressure is generated by a gas membrane. It is a DAC with a high-performance heating method, using resistive heaters. One heater is mounted on the external body of the DAC and uses 200 W electrical power to reach sample temperatures up to 800 K. It is suggested to operate the cell inside a vacuum chamber, to prevent the oxidation of materials. Alternatively, to prevent oxidation, it is possible to use the cell in inert gas atmosphere.

The cell body material, with low thermal expansion, ensures that it can be used up to temperatures of 800 K. A K-type thermocouple mounted close to diamonds is used to control the temperature. A Rhenium gasket allows stable operation of DAC.

To realize the experiment at high temperature it is necessary to monitor the sample pressure to ensure that it do not drop as temperature ramps up. By a remote pressure device the membrane is under constant He gas pressure during the high temperature experiment, providing a continuous constant load, independent of temperature.

 

Diamond Anvil Cell technology is nowadays within the reach of even the smallest physics or chemistry laboratory. The simplicity of this device and its affordable price permit any interested scientist to perform measurements at pressures in the 100 GPa range and above. By combining the DAC with different investigation techniques, from the simplest ones, as microscope visual observation, through optical or Infrared spectroscopy, Raman spectroscopy, to synchrotron x-ray scattering, researchers all around the word continues to investigate the changes under pressure of virtually any material. LOTO-eng manufactures a variety of types of DAC, among which, for sure, the one suitable for your purpose. LOTO-eng specialists will help you to identify the most suitable DAC cell, accessories and loading technique to meet your needs, in accordance with your scientific goal and your budget.

TECHNICAL DATA

PRESSURE DRIVERMembrane
CELL MATERIALInconel steel
TOP ANGLETotal angle 70° up on request
BOTTOM ANGLETotal angle 70° up on request
MAX TEMPERATURE1000°K
DIMENSIONSDiameter 50mm Height 36mm

HIGHLIGHT

  • Easy to arrange
  • High pressure and temperature
  • Vacuum vessel to include DAC cell
Spark eroder / EDM machine

The Spark Eroder / EDM machine

Spark Eroder LOTO-eng type SEC-500 version is the right tool to drill the gasket useful in experiments in DAC cells.
The gasket can be made of different materials such as BeCu Tungsten steel etc.
The machine uses an electroerosion process The SPARK Eroder SEC-500 is an automatic tool designed with innovative concepts and solutions. The drilling tip, from 50 to 600 microns, is in Tungsten. The duration and efficiency of the ablation process depend on different factors such as: - power and voltage of the current emitted by the tip - types of materials used for the tip and types of materials for the gasket - type of dielectric liquid.

The EDM machine uses a proprietary and interactive software to manage the advancement of the tip, controlling the discharge level.
Thanks to the feedback circuit, the tip is kept on the gasket, at the right distance to permit the discharge, until the entire drilling process is completed.
The user can easily monitor the entire process thanks to a camera positioned under the work area that sends images to the management software. The software allows to optimize the alignment phase which is essential to have the required hole in the gasket, that is, in the center of the indentation.

TECHNICAL DATA

DRILLING DIMENSIONSHoles 30-600 microns
DRILLING MATERIAL GASKETStainless steel, Rhenium, BeCu, Tungsten, Platinum
MAGNIFICATION200x and camera software
FAST DRILLING25 micron/min (dependent material and hole)
SOFTWARESED-02 Spark Eroder
DIMENSIONS / WEIGHT240x130x230 mm 5 Kg
Spark Eroder

HIGHLIGHT

  • Easy to align,
  • Save the tip during an accidental straight
  • 100%success making the hole
  • Software for a smart control
Hyper Micro Holes Software

Product Code: SED-500

Spark Eroder Machine Software

LOTO-eng developed an Hiper Micro Holes software that  contains many powerful features that make it even easier to and more fun to work with his Spark Eroder Machine. Throughout an easy control panel you can see all the features necessary to control the hole and give potentiality to have success.

The managing software is equipped with a panel for the video output of the camera, so that the operator can control the alignment of the main components, tip and gasket, and visualize the finished work.

The sample can be illuminated, for visual quality inspection, by using a LED source placed on the camera.

How it works?

Hiper Micro Holes Software provides to control cycle to our spark eroder machine designed to dig a precise micro holes to support scientific research in high pressure field.

The EDM machine use an owner and interactive software for managing the advance of the tip, controlling the level of discharge. Thanks to the feedback circuit, the tip is kept upon the gasket, at the right distance, until the whole drilling process is complete. The user can easily monitor the whole process thanks to a camera placed below the working area, that sends the images to the managing software.The software permit to control the tip (tungsten wire from 50-to 400 microns) during the process. Moreover the software control the alignment fase very important to have success during the gasket preparation.

TECHNICAL DATA

SOFTWARESED 500
DRILLING MATERIAL GASKETStainless steel, Rhenium
MAGNIFICATION200x and camera software
PARAMETERS CONTROLHV, Motor up and down, Deep,
FAST DRILLING25 micron/min (dependent material and hole)
SOFTWARE CONTROLWindows 2008/2011

HIGHLIGHT

  • Easy to use
  • Parameter’s control
  • 100%success making the hole