GFZ German research centre for geo sciences

He Gas Pycnometry

Description:

  • High precision He-gas driven pycnometer for non-destructive measurement of matrix volume of rocks (AccuPyc, micromeritics)

Specifications:

  • Chamber size: 1, 3.5, 10 ccm (AccuPyc 1340), 100 ccm (AccuPyc 1030)
  • Accuracy: ~ 0.06%
  • Pressure: < 0.14 MPa (gas)

BIB Cooling Cross Section Polisher

Description: 

  • Broad Ion Beam (BIB) polisher (Jeol IB-19520CCP) operating with an Ar-Ion beam for damage-free preparation of 1 - 2 sq mm large, almost planar surfaces. This allows high-resolution SEM analysis of fine-grained material such as clays and shales, including detailed investigations of texture and fabric of their pores.

Specifications:

  • Sample size: 10 x 8 x 3 mm
  • Temperature: ~ -140 °C to 30 °C (coolant: liquid nitrogen)
  • Acceleration voltage: 2 - 8 kV
  • Milling speed: ~ 500 µm / hour
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