Instrumentation
Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC)
RJ Lee Group provides precision thermal analysis solutions including custom Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) testing methods that help engineers, researchers, and manufacturers optimize materials, enhance product reliability, and drive innovation. Whether you're developing next-generation materials or navigating regulatory requirements, our expert team delivers fast, reliable, and data-driven results to help you succeed.
What is Thermogravimetric Analysis (TGA)?
TGA is a type of thermal analysis where the mass of a sample is continuously measured over time as the temperature changes in a controlled atmosphere.
How it Works
A sample is placed on a balance inside a furnace. The sample is heated at a controlled rate and as the temperature increases, the sample may lose or gain mass (e.g., from moisture loss, decomposition, or oxidation) and the TGA records weight vs. temperature/time, creating a thermogram.
TGA Capabilities
- Thermal stability and decomposition profiling
- Moisture and volatile content analysis
- Kinetic studies and compositional analysis
- Thermal stability
- Oxidation or combustion behavior
- Residual solvents or ash content
Applications of the Thermogravimetric Analyzer
- Mining and Minerals: Characterization of composition to identify volatile components, identification of decomposition temperatures, purity assessment, oxidation/reduction studies, calcination evaluation, moisture analysis.
- Ceramics and Inorganic Materials: Evaluation of phase transitions, resistance to oxidation and thermal behavior.
- Polymers and Plastics: Assessment of stability, decomposition temperatures, and composition.
- Pharmaceuticals: Moisture content, degradation pathways, formulation stability.
- Metals and Alloys: Analysis of oxidation kinetics, corrosion resistance, and thermal expansion properties.
- Composites and Nanomaterials: Structural integrity, evaluation of filler content and material interactions under heat.
What is Differential Scanning Calorimetry (DSC)?
DSC is a thermal analysis technique used to measure the amount of heat absorbed or released by a sample as it is heated, cooled or held isothermally. Our Differential Scanning Calorimetry (DSC) services provide precise heat flow measurements to identify key thermal events in materials.
How it Works
A test sample and an inert reference material are subjected to the same controlled temperature inside a furnace. When the sample undergoes a thermal event—such as melting, crystallization, or a glass transition—it either absorbs or releases heat, which is detected as a deviation in the heat flow. These changes are recorded as peaks or shifts on a graph of heat flow versus temperature.
DSC Applications
- Melting point and crystallization analysis
- Glass transition temperature (Tg) detection
- Phase transition and thermal behavior studies
- Temperature range: -90°C to 1500°C
Why Choose RJ Lee Group for Thermal Analysis?
We have decades of experience in materials testing and thermal analysis and we create customizable testing plans tailored to your industry and application. Our depth and breadth of services allow us to integrate complementary analytical techniques, including XRD, XRF, FTIR, and SEM, for full material characterization. We are conveniently located in Monroeville, Pennsylvania, serving clients across North America and abroad.
Advanced Thermal Analysis Equipment
RJ Lee Group uses state-of-the-art TA Instruments for both micro and macro thermal analysis. Our lab supports:- Standalone or combined TGA/DSC testing
- Flexible thermal profiles and ramp rates
- Experiments in oxidative or inert environments
- LECO Macro TGA for large sample mass testing
Request a Quote or Consultation
Looking for TGA or DSC testing services?
Contact RJ Lee Group to speak with a thermal analysis expert and develop a custom testing plan.
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- Polymer Analysis
- Failure Analysis
- Compositional Analysis
- Materials Characterization
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