Gearing Scientific Ltd
Gearing Scientific - Specialists in Thermal/Mechanical Testing and Analysis
- Thermal Insulation Testing
- DMA Testing & Application Notes. Over 35 years experience here.
For checking the THERMAL INSULATION properties of your materials, we offer a rapid service to BS874/ISO8301 for measuring the lambda values. Thickness up to 100mm.
DMA (Dynamic Mechanical Analysis) will give you the glass transition (softening point), stiffness (modulus) and damping from -180ºC to 400ºC in air. These can vary with the vibration frequency and strain amplitude! Also thermal expansion - TMA. Runs can be made in air or liquids (max 150C). DMA is also over 1000 times as sensitive as DSC for milligrams of powders or a single drop of liquid. Polymer calibration standards for GPC or Maldi-TOFS. Deuterated polymers and monomers.
Deuterated polymers and C13 ones too. Discounts for European universities.
Specific heat (Cp) testing on larger gram size samples.
The main problem with using a DSC to measure specific heat is that the samples are so small that they will often not be representative of the bulk sample particularly if it is a composite or multi-phase material.
Using samples of 2 to 25mm thickness by 50 to 60mm diameter (or octagonal) we can now offer this test over the T range from "0 to <200ºC". (This is using the same Lasercomp Fox 50 apparatus used for thermal conductivity testing.)