DISCOVER the WORLD'S FINEST DYNAMIC MECHANICAL ANALYZER

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TA Instruments invites you to experience the ultimate in Dynamic Mechanical Analyzers, the Discovery DMA 850. Building on superior technologies of the world's best-selling DMA, improvements in every aspect of DMA performance deliver the most accurate and reproducible measurement of mechanical properties over a wide temperature range. It's never been easier to get great DMA data! • Non-contact, low mass motor delivers continuous forces from 0.1 mN to 18 N to measure everything from soft to stiff materials • Frictionless, low-compliance air bearing design ensures superior force sensitivity and...

Dynamic Mechanical Analyzer 5

TECHNOLOGY DRIVE SYSTEM Responsive Direct Drive Motor The DMA 850’s non-contact motor applies both dynamic and static deformation over the full 25 mm range of motion, providing exceptional control in all modes and clamp positions. The motor is constructed of high-performance lightweight composites that maximize axial and torsional stiffness while minimizing system inertia. Sophisticated control electronics enable the fastest motor control over the widest continuous range of force, from 0.1 mN to 18 N.This enables the system to capture a broad spectrum of material properties with the highest level...

Low Mass, High Stiffness Sample Clamps Rigid Aluminum Casting-- Drive Motor Dynamic Mechanical Analyzer 7

TECHNOLOGY MECHANICAL DESIGN An accurate mechanical measurement is built on a foundation that completely transfers all motor deformation to the sample, while also eliminating any influence from external factors such as system resonance, thermal drift or frame deformation. Optimized Mechanics Temperature-Controlled Transducer The critical drive components of the DMA 850 are mounted within a high- The transducer is temperature-controlled to eliminate drift associated stiffness aluminum casting that is rigidly mounted to an FEA-optimized with temperature changes from the sample or laboratory environment....

Temperature-Controlled Transducer High-Stiffness Casting FEA–Optimized Instrument Foundation Dynamic Mechanical Analyzer

ACCESSORIES ENVIRONMENTAL CONTROL SYSTEMS The DMA 850 offers you a choice of two dedicated environmental systems: the Standard Furnace and the DMA-RH Accessory for humidity and temperature control. Installation is simple, making it convenient to switch between systems as required. All environmental systems and accessories are designed specifically for high performance DMA measurements and seamless integration and are manufactured by TA Instruments. Standard Furnace The Standard Furnace for the DMA 850 is a wide-range bifilar wound furnace that provides uniform temperature control from -160°C...

ACCESSORIES ENVIRONMENTAL CONTROL SYSTEMS DMA-RH Accessory The DMA-RH Accessory is a fully integrated unit and includes the following This precision environmental system provides accurate control of sample temperature and relative humidity for DMA experiments. A custom-designed humidity and temperature chamber optimized for mechanical measurements provides stable, reliable control of temperature and humidity over hardware components: a wide range of operating conditions. The system successfully prevents condensation, a common accommodates standard DMA clamps (tension, cantilever, and 3-point...

Dynamic Mechanical Analyzer Accessories

ACCESSORIES COOLING SYSTEMS Gas Cooling Accessory (GCA) The GCA extends the operating range of the DMA 850 to -150°C. It uses cold nitrogen gas generated from controlled evaporation of liquid nitrogen. Automated filling of the tank can be programmed to occur after the scan is complete. The GCA will provide ballistic or controlled cooling rates over the entire operating range of the DMA 850 (-150 to 600°C). In general, the maximum cooling rate is a function of the installed clamp and the thermal characteristics of the sample. The figure below shows the typical range* of controlled cooling rates...

Nitrogen Purge Cooler (NPC) The NPC is an economical cooling option that provides crash-cooling and controlled-heating at temperatures as low as -160°C. The innovative design purges nitrogen gas (2 to 8 bar at 30 L/min) through a heat exchanger immersed in a 2.5 L dewar filled with liquid nitrogen and into the furnace. The compact design minimizes space requirements and the crash-cooling capability make it an ideal choice for increasing throughput of low temperature experiments. Air Chiller Systems (ACS) The new ACS models offer unique gas flow cooling systems that provide the capability for...

The DMA 850 features clamps in a complete set of deformation types, so a broad range of samples can be accurately analyzed and closely resemble real world process or application conditions. Each clamp is individually optimized for accuracy and ease-of-use. • High stiffness, low mass designs provide maximum modulus accuracy • Low thermal mass reduces temperature equilibration time and optimizes transition temperature accuracy and precision • Individual clamp stiffness calibrations ensure modulus accuracy and repeatability, especially between operators • Simple dovetail connection is easy to install...

Dual/Single Cantilever Cantilever (clamped) bending is a good general-purpose Tensile clamps are designed for uniaxial deformation of films mode for evaluating thermoplastics and highly damped and fibers. In oscillation experiments, the instrument uses materials (e.g., elastomers). Available in sample lengths of constant and variable methods to apply a static load that 8 mm, 20 mm, and 35 mm, the cantilever clamps can be used prevents buckling and unnecessary creep. A newly designed in single or dual configurations. Dual cantilever is especially film tension clamp simplifies the clamping mechanism...

ACCESSORIES CLAMP DESIGNS Shear Sandwich 3-point bending, or free bending, is often considered a Two equal-size pieces of the same material are sheared “pure” mode of deformation because clamping effects are between a fixed and moving plate for the measurement of eliminated. Sample spans of 5 mm, 10 mm, 15 mm, 20 mm, shear modulus, G. This mode is ideal for soft materials such and 50 mm are available to accommodate a wide range of as gels, pressure sensitive adhesives, and high viscosity resins. sample stiffness and specimen sizes. A unique low-friction, roller bearing supported design available...