Dilatometry – DIL 502 Expedis® Series Method, Instruments, Applications Analyzing & Testing

Dilatometry Dilatometry is a precise analytical technique that measures dimensional changes in materials as a function of temperature and/or time. It provides critical information on key material properties. These measurements are fundamental for both quality assurance and the advancement of materials research. Over the past decades, dilatometry has been firmly established as a reliable method in industrial and research settings. All NETZSCH dilatometers are based on such standards as DIN EN 821, DIN 51045, and ASTM E228. Ceramics and Glass: Dilatometry provides insight into the sintering process...

The Method for Determination of Dimensional Changes Pushrod dilatometry is a method for determining dimensional changes versus temperature and/or time while the specimen undergoes a controlled temperature program. The degree of expansion divided by the change in temperature is called the material’s coefficient of expansion (ā). mean coefficient of expansion initial specimen length change in temperature change in length To prepare a dilatometer measurement, a specimen is inserted into a sample holder and subjected to a defined application of force by a pushrod. After closing the furnace, the experiment...

Key Insights into the Expansion and Shrinkage of Ceramics, Glasses, Metals and Building Materials The DIL 502 Expedis® Classic facilitates industrial quality control and application through maintenance-free operation, thereby ensuring operational efficiency and reliability. The all-in-one design, which eliminates the need for supplementary chiller or power units, helps furnish a clutter-free work environment in high-pressure industrial settings. For high sample throughput, the Classic can be configured with a dual furnace and a dual measuring system. The robust design enables operation from ambient...

■ Furnaces: Copper, Steel, SIO2, SiC*, Rh, Graphite ■ Furnaces: Copper, Steel, SiO2, SIC*, Rh, Graphite* The All-Rounder for Most ApplicationsThe Expert - Highest Level of Sophistication Perfect for sophisticated industrial research and contract laboratories, the Select model offers a flexible instrument setup. This instrument can operate at temperatures ranging from -180°C to 2000°C without the need to exchange furnaces when using the dual furnace design. Choose from seven different furnaces to meet your temperature needs, such as the copper furnace (-180°C to 500°C) or the graphite furnace...

Separate Paths for Protective and Purge Gases Schematic of the gas paths inside the instrument when using one protective gas and two purge gases When using the three mass-flow controllers (4th is optional), the gas flow paths inside the instrument are divided: The protective gas is first directed through the measuring cell and subsequently enters the sample chamber, whereas the purge gas(es) is/are directly fed into the sample chamber. All protective and purge gases leave the instrument together via the furnace exhaust. In the standard version, if only one gas switch or one MFC is integrated,...

Say goodbye to the inconsistencies of manual measurements. The DIL 502 Expedis® automatically detects the initial length of a specimen before testing, ensuring accuracy under identical conditions. MultiTouch Technology Achieving stable specimen positioning is crucial for reliable results. The MultiTouch feature automatically places the specimen in the optimal position using a unique tail-like motion, enhancing measurement consistency. Automatic Specimen Length Detection Adjustable Thermocouple Positioning Easily measure specimens of varying lengths with the adjustable, capillary-guided thermocouple...

REDUCED ENERGY CONSUMPTION AND OPERATING COSTS To achieve accurate expansion results, it is often necessary to rely on thermostatic control using a water cycle. This method requires continuous operation of the thermostat, which consumes a significant amount of energy and produces waste heat. NETZSCH has succeeded in eliminating the external thermostat. The temperature of the measuring chamber is controlled electronically while maintaining excellent temperature stability. This significantly reduces the energy consumption of a DIL 502 Expedis®* Additionally, the user-defined scheduling function...

At NETZSCH, our commitment to quality extends well beyond the instruments themselves. We understand that your investment in advanced technology is a long-term one, and that's why we offer something truly unparalleled - our Unlimited Warranty. What Does Unlimited Warranty Mean? Unlike other warranties that may have hidden limitations, NETZSCH's Unlimited Warranty proves our dedication to your success. For as long as it is technically possible, we stand by our instruments and support you with: ■ Expert Service: Receive high-quality service directly from NETZSCH or our authorized dealers. ■ Predictable...

Furnace Type Max. Temp. Copper* 500°C (fast cooling) Cooling System Vortex AIC 80 LN2 Tap water*** Cooling thermostat Tap water*** Cooling thermostat Tap water*** Cooling thermostat * Select and Supreme ** Supreme *** Requires connection to tap water Furnaces are designed to accommodate a variety of atmospheres - whether inert, oxidizing (for graphite only up to 1680°C by using a special protective tube), reducing, or vacuum - thus providing optimal performance tailored to your product variations and temperature requirements.

A Range of Furnaces to Match Your Application The DIL 502 Expedis® can be tailored to any application with its wide range of interchangeable furnaces. The silicon carbide furnace provides access to temperatures up to 1600°C for all DIL 502 Expedis® versions, making them suitable for routine measurements. For subambient requirements, the Select and Supreme versions offer coolable furnaces with different cooling options. For high-temperature applications, three graphite furnaces reaching 2000°C, 2400°C and 2800°C are the appropriate configuration for measuring the thermal expansion of metals, alloys,...