Vertical Thermal Expansion Rate Measurement Device "DIL820 Series"

Measurement of thermal expansion in the vertical direction is possible! The highest sensitivity is guaranteed by a high-resolution inductive sensor (LVDT).

The DIL820 series (DIL 821/822) is a high-precision vertical dilatometer belonging to the DIL 820 series from TA Instruments. These models are equipped with a new optical encoder that has a resolution of 1nm, making them particularly suitable for the analysis of challenging samples. The DIL 822 employs true differential measurement technology, providing the best sensitivity and accuracy for CTE (coefficient of thermal expansion) in the market.

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basic information

DIL 821 ■Sample length: 0–25 mm ■Sample diameter: 12 mm ■Material of sample holder: Quartz glass, Al2O3, Sapphire ■Contact force: 0.01 – 1.0 N ■Change in length: 5 mm ■Resolution AL°C: 1 nm, 0.05°C ■α accuracy: 0.03 x 10^-6 K^-1 ■Atmosphere: Vacuum, inert gas, air ■Temperature range: RT – 1100°C (Type S) RT – 1500°C (Type S) 100 – 1700°C (Type B) DIL 822 ■Sample length: 0–25 mm ■Sample diameter: 6 mm ■Material of sample holder: Graphite, Al2O3 ■Contact force: 0.01 N – 1.0 N ■Change in length: 5 mm ■Resolution AL°C: 1 nm, 0.05°C ■α accuracy: 0.01 x 10^-6 K^-1 ■Atmosphere: Vacuum, inert gas, air (with gas unit including mass flow controller and vacuum unit) ■Temperature range: RT – 2000°C (Type C) 300 – 2300°C (Pyrometer)

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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-Shrinkage Samples: Accurate measurement of the expansion characteristics of samples with high shrinkage 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.