Quenching Dilatometer "DIL805" for Rapid Cooling Type Thermal Expansion Rate Measurement

basic information

DIL 805A/D Temperature range: -150°C to 1300°C, 50°C to 1700°C Heating method: Induction heating, power control at steady sine frequency by amplitude adjustment Sample materials: Electrically conductive hollow or solid Sample shape: Outer diameter 5mm, length 10mm, optionally outer diameter 1mm to 22mm Length resolution: 50 nm Temperature resolution: 0.05°C Atmosphere: Inert gas, vacuum, air Heating rate/cooling rate: 100°C/second Deformation force: Maximum 20.0 kN Deformation speed: 0.01 to 200 mm/second Strain rate φ: 0.001 to 20.0 s^-1 True strain φ: 0.05 to 1.2 Minimum gauge length: 3 mm Number of deformation steps: Any number Rest time between deformation steps: 40 msec Data recording speed: 30000 records/second for each parameter For inquiries about DIL 805A/D/T and DIL 805A, please contact us separately.

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Applications/Examples of results

Sintering Analysis: High-precision measurement of sample expansion during the sintering process. Rate-Controlled Sintering (RCS): Real-time recording of sample expansion while controlling the sintering rate. High-Temperature Measurement: Measurement of sample expansion characteristics at high temperatures, particularly suitable for powder samples and synthetic research subjects. Examples of Achievements Measurement of Expansion Performance of High-Contraction Samples: Accurate measurement of the expansion characteristics of samples with high contraction rates. Realization of Constant Sintering Rate for Sintered Ceramics: Optimization of the sintering process to achieve a constant sintering rate. Expansion Measurement at High Temperatures: Measurement of sample expansion characteristics in high-temperature environments to prevent damage to the measurement system.

Detailed information

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  Phase transformation of steel The phase transformation of steel is highly path-dependent, and the effects of initial processing steps are reflected in the subsequent phase composition. When measured with the DIL805A rapid cooling type thermal expansion measurement device, the transfer between phases in steel is particularly evident, and the temperature at which this occurs is important for constructing TTT and CCT diagrams. In this example, the sample is initially heated above the austenite temperature and then rapidly cooled. This plot shows the start (Ar3) and end (Ar1) of the phase transformation from austenite to ferrite.