Membrane Diamond Anvil Cell GENERALITY
These Membrane Diamond Anvil Cell are aimed at performing high pressure experiments at a large
range of temperatures.
Pressure range :
Ref : [MDAC]
0 to 2 Mbar (depending on the culet size of the diamonds)
Temperature range :
- 10 K to 450 K. Standard version
- 10 K to 1000 K. High temperature version
Optical access to sample :
Accessible electromagnetic spectrum :
Visible, X rays, Raman and infrared (with specific diamonds)
Materials :
Maraging Steels & Tungsten Carbide (Standard) OR
Super Alloys & Super hard seat (High Temp.).
Sizes :
Height 32mm max (1.26”), Diameter 50mm (1.97”).
Weight :
125 g (0.288 lbs).
A micro-valve attached to the membrane allows to disconnect the cell
from its pressure controller while maintaining the pressure in the
membrane.
Accessories :
Setting of the force applied to the anvils
Gaskets :
JT01 : Stainless steel 301
d: 200µm x Ø15 mm.
JT02 : Stainless steel 301
d: 200µm x 5.2x 5.2 mm.
JT03 : Stainless steel 301
d: 600µm x 5.2x 5.2 mm.
JT04 : CuBe
d: 200µm x 5.2x 5.2 mm.
JT05 : Rhenium.
d: 200µm x 5.2x 5.2 mm.
Membranes :
MEM01(S) : Membrane (Screw) capillary 1/16" without micro-valve.
MEM02(S) : Membrane (Screw) capillary 1/32" without micro-valve.
MEM03(S) : Membrane (Screw) capillary 1/16" with micro-valve.
MEM04(S) : Membrane (Screw) capillary 1/32" with micro-valve.
Micro-Valve
2
OPEN
D
S
PAR F1
R
S
MDAC
PDS
Pressure on the sample (Kbar)
1400
Ref : MEMBxx
Ref : MEMBxxS
Ref : VALVE
1200
0
1000
H20
800
F(kN)
(Typical value)
Beveled diamond ( 7°)
600
10
 culets 100µ* 350µ
400
200
200
P(bars)
Force applied to the anvils versus pressure on membrane.
50
100
150
200
250
300
P membrane (Bars)
These MDACs are manufactured by BETSA
and were designed by BETSA
Copyright©2012-2013 BETSA® - All right reserved
BETSA® ZI, 6 bis rue de la Commune de Paris
Tél +33 1 64 08 27 33
F 77370 NANGIS
Fax +33 1 64 08 33 51
FRANCE
Email [email protected]
Force applied to the anvils :
A helium pressure varying from 0 to 200 bars applies onto a
stainless steel membrane that is in contact with the MDAC
piston and will transmit it forces up to 10 kN.
Temperature range :
It is possible to work at low temperature (>10 K).
To perform experiments at high temperature (450 K to 1000
K), the mechanical parts of the MDACs are made of suitable
materials.
1
Other features
The small size of the MDAC makes it easy to mount
into a cryostat or a furnace.
Holes are drilled for access next to the sample to :
- setup Thermocouples
- setup Electrical connectors (heating gaskets,
designer anvils, electrical measurements)
1
2
3
4
5
6
7
8
9
Cover
Membrane
Washer
Upper rocker
Piston
Guidance dowel
Gasket (Stainless steel or rhenium)
Lower rocker
Cylinder (fixed)
2
3
4
5
6
7
Height : 32 mm; Diameter : 50 mm
8
9
Example : MDAC-2A-XHP is a MDAC equipped with beveled diamonds, X-Ray that fits for work at very high pressure.
MDAC-0-HT is MDAC not equipped with diamonds and fits for work at High Temperature.
References :MDAC-x-yHT
x standing for:
0:
MDAC not equipped with diamonds.
1A :
Standard version equipped with standard diamonds (culet Ø 500µ: 0 to 20GPa).
2A :
MDAC equipped with beveled diamonds (culet Ø 100µ :0 to 150 GPa).
A:
Any version equipped with standard type IIA diamonds (for IR measurements).
y standing for:
Abbreviation of designation and options
A:
Amagnetic.
HT :
High temperature version
Copyright©2012-2013 BETSA® - All right reserved
BETSA® ZI, 6 bis rue de la Commune de Paris
Tél +33 1 64 08 27 33
F 77370 NANGIS
Fax +33 1 64 08 33 51
FRANCE
Email [email protected]