DIL 820 Series Dilatometers operate in a vertical orientation, making them uniquely configured for sintering analysis, studies in Rate Controlled Sintering (RCS), and the determination of dilatometric parameters of samples otherwise difficult to analyze on classic horizontal design dilatometers. The 820 Series dilatometers are also particularly well suited for powder samples and samples that, during the test, develop a vitreous phase that would lead to sample interaction with the sample holder generating friction, a major source of errors in the measurement of dilatometric parameters.
All four instruments feature the new optical encoder with 1 nm resolution; which, when combined with the True Differential capability of the DIL822, results in the best possible sensitivity and CTE accuracy on the market.
The vertical orientation also prevents the measuring systems and furnace tubes from sagging when used over long test periods at high temperatures, resulting in extended operational life.
Equipped with a linear motor generating a constant load throughout the experiment, the pushrod is kept in contact with the sample regardless of dimensional changes.