Magnetic property characterisation
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Current activities: EMPIR joint research project "MagNaStand" for supporting the development of new ISO standards for magnetic nanoparticles and products containing magnetic nanoparticles.
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We are offering currently measurements of
- magnetic properties (e.g. susceptibility, remanent magnetisation, hysteresis)
- non-magnetic properties (e.g. volume, density, porosity, dry matter)
Magnetic properties
Low-field Susceptibility
- Bulk susceptibility
- Field dependence (for magnetic mineral identification)
- Frequency dependence in function of temperature betwen -271 and 126°C (for detection of superparamagnetic grains)
- Temperature dependence between -271 and 700°C (magnetic mineral identification)
- Anisotropy (for studies of rock and sedimentary fabrics)
- Measurement of small cores up to 50 cm (for depth variation of magnetic susceptibility)
- On site surface measurements (for instance soil mapping)
Remanent magnetisation
- Directional measurement of demagnetisation and magnetisation behaviour of natural samples (NRM, IRM, ARM) for instance for magnetostratigraphic studies
Magnetisation measurements
- Hysteresis loops in magnetising fields between -7 and +7 T in function of temperature
- Measurement of induced and remanent magnetisation between -500 and + 500 mT
- Decay of remanent magnetisation (for detection of magnetically viscous grains)
Non-magnetic properties
- Volume measurements of solids and liquids by gas replacement
- Density determination (using volume and weight measurements)
- Porosity determinations (using bulk and particle density determinations)
- Dry matter analytical determination
- pH, redox-potential, salinity, total dissolved solids, electrical resistivity and conductivity
Modality
- After instruction, you measure yourself.
- We make measurements for you.
Options
If wished, we provide our interdisciplinary knowledge and longstanding experience
- to plan and design your experiment / measurement
- to advise you in sample preparation
- to treat and to analyse data
- to interpret your data
Deliverables
Depending on the modality and options chosen:
- raw data
- treated data
- interpreted data and report
Possible customers
- Geological institutes (sedimentology, structural geology, tectonics)
- Environmental laboratories and agencies (sewage plants, landfill management)
- Palaeo- & Rock magnetic laboratories without appropriate equipment
- Chemical, mining and fossil fuel companies
- Food and forage chemistry
Contact
Dr. Simo Spassov
Email :
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