Dynamic Mechanical Analyzer

Supervisor : Elisa Mercadelli

Dynamic Mechanical Analysis measures the viscoelastic properties of materials as a function of time, temperature, and frequency.
These analyses allow the determination of:
• mechanical properties, such as moduli, strength, strain at break, damping;
• glass transition temperature, degree of crystallinity, additives/fillers effect, etc.

Output values:
Complex Modulus, Storage Modulus, Loss Modulus, Complex/Dynamic Viscosity, Time, Creep Compliance, Stress/Strain, Frequency, Tan Delta (δ), Static/Dynamic Force, Sample Stiffness, Temperature, Displacement.

Modes of Operation:
• Multi strain or multi stress
• Multi Frequency/Strain or multi frequency/stress
• Creep
• Stress relaxation
• Controlled force
• Iso-strain
• Strain rate

Materials tested at CNR-ISTEC: Ceramic green tapes produced via tape casting; Polymeric scaffolds and hybrid composites for applications in regenerative medicine; Materials for damping applications; UHTC Matrix Composites (UHTCMCs) for aerospace applications.

Dynamic Mechanical Analyzer, DMA Q800, TA Instrument
• Maximum/ minimum Force: 18 N / 0.0001 N.
• Force Resolution: 0.00001 N.
• Strain Resolution: 1 nm.
• Frequency Range: 0.01 to 200 Hz.
• Dynamic Sample Deformation Range: 0.5 µm to 10 mm.
• Temperature Range: 25 to 600°.C
• Heating Rate: 0.1 to 20°C/min.
• Data sampling interval: da 0.1 a 1000 s/pt.
• Clamps available at CNR-ISTEC: Single/dual cantilever, Tension film/fibre, Compression, Submersion compression.