THERMO/DYNAMIC MECHANICAL ANALYZER (TMA/DMA)

Equipment Details: 

Make  : Perkin Elmer

Model :  DMA7e

 

Instrumentation

DMA 7e is comprised of four functional components: motor, measuring system, dector and environmental system

Technical Specification:

 



Linear Force Motor can Produce:

8,000 mN Downward Force and

6,500 mN Upward Force

Dynamic Force can be Applied at Frequencies:

0.01 to 51 Hz

Magnetic Core of the Linear Variable Differential Transformer

maintains a constant horizontal distance from the coils through the 25 mm range

Power Requirements

100 volts

Temperature range

RT - 800oC

Heating rate ( DMA)

1-10oC/min depending upon the measuring system

Heating rate (TMA)

0.1-100oC /min

 

Equipment Photo: 
Contact Person: 

I). Dr (Mrs) Shany Joseph (Instrument in charge) Office No: 020-25989273 ext 207

Email id : shany@cmet.gov.in

II). Mr.Marimuthu (Characterization Incharge) Office no 020-25989273

Email id : marimuthu@cmet.gov.in

Location: 
Pune Laboratory
Working Principles: 

A Dynamic mechanical analysis (abbreviated DMA, also known as dynamic mechanical spectroscopy) is a technique used to study and characterize materials. It is most useful for studying the viscoelastic behavior of polymers. A sinusoidal stress is applied and the strain in the material is measured, allowing one to determine the complex modulus. The temperature of the sample or the frequency of the stress are often varied, leading to variations in the complex modulus; this approach can be used to locate the glass transition temperature of the material, as well as to identify transitions corresponding to other molecular motions.

Thermomechanical Analyzer ( TMA) measures the dimensional and viscoelastic changes in sample as a function of temperrature or time