The 820HT Series operates up to high temperatures in a vertical orientation , making it uniquely set up for the analysis of sintering, studies in Rate Controlled Sintering (RCS) mode and the determination of dilatometric parameters of samples otherwise Impossible to be correctly analyzed on classic dilatometers with horizontal design.
Available in two different models (DIL 821HT and DIL 822HT), both the units feature the new optical encoder with 1nm resolution. That when combined with the True Differential of the DIL822HT, the result is simply the best possible sensitivity and CTE accuracy in the high temperatures segment.
Unlike in horizontal dilatometry the vertical design does not require the sample to be supported. The specimen stands free on the bottom plate and the pushrod is loaded on its tip.
The vertical configuration is particularly well suited for syntherization studies and for all those sample that result difficult if not impossible to be measured with horizontal pushrod dilatometers, like for instance powder samples and samples that during the test develop a vitreous phase. That would lead the sample to interact with the sample holder hence generate friction. A major source of errors in the measurament of dilatometric parameters.