DIL 402 Expedis Select/Supreme
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Catalog excerpts

DIL 402 Expedis Select/Supreme - 1

Dilatometer Series DIL 402 Expedis® Select, Supreme and Supreme HT Method, Instruments, Applications Analyzing & Testing

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DIL 402 Expedis Select/Supreme - 3

The Method for Determination of Dimensional Changes Each time a material is exposed to temperature changes – it shows a variation in its dimension. Whether it is in the course of its regular thermal expansion, by passing a phase transition or while it undergoes sintering, the substance will either be shrunk or elongated. Dilatometry is the method of choice to study length change phenomena of ceramics, glasses, metals, composites, and polymers as well as other construction materials, thus revealing information regarding their thermal behavior and about process parameters or sintering (and...

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DIL 402 Expedis Select/Supreme - 4

Dilatometry Redefined MAXIMUM FLEXIBILITY The double furnace sliding carrier of the DIL 402 Expedis® Select/Supreme standard versions creates the opportunity to cover the entire temperature range from -180°C to 2000°C or, alternatively, to increase the sample throughput by having two furnaces available for use. UTMOST VERSATILITY Due to the wide dynamic range of the measurement system, it is possible to measure both soft and hard samples without impairment of the properties. Additionally, it enables force modulation and builds a bridge to thermo-mechanical analysis (TMA).

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NanoEye – LARGEST MEASURING RANGE, HIGHEST RESOLUTION The new, pioneering opto-electronic NanoEye displacement system features perfect linearity and maximum resolution over a measuring range which was impossible to realize until now. Instrument Type Measuring Range USER-OPTIMIZED DESIGN A wide force range for more fragile samples, built-in mass flow controllers and electrical thermostatting of the measuring cell to suppress any temperature influence from the surrounding provide for ease-of-use and maximum operational safety.

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A New Dimension in Measuring Range and Accuracy In classical dilatometry, the two parameters measurement range and resolution mostly seem diametrically opposed. If the resolution goes up, the measuring range usually goes down and vice versa. NanoEye, the novel opto-electronic displacement system, is able to overcome this conflict and offers highest resolution associated with an unmatched measuring range. Functional Principle optical encoder During a test run, if the sample expands, all green components in the graphics move backwards with the help of a linear guide (marked in blue). The...

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Advantages using NanoEye Perfect Linearity compared to conventional transducer systems – for measurements with large thermal expansion and unmatched linearity. Wider Measuring Range Than Ever Before up to a factor of 10 compared to traditional dilatometers – for measurements on a large variety of different sample lengths with different thermal expansion behavior without manual adaption of measuring range. Friction-Free Construction without sliding or rolling friction and stick-slip effects – for highest reproducibility of results. Displacement Determination with Nanometer Resolution over...

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The two standard versions of the DIL 402 Expedis® are specially designed for both research & development and sophisticated industrial applications: The comprehensive, fully-equipped Supreme model and the upgradable Select type (for a detailed comparison between the two models see page 25). Designed to Master the Challenges of the Future Optimum Adaptability One or two furnaces, manual or motorized furnace operation, single or dual sample holders, tube type or rod type sample holders … these are only some of the features the Expedis® Select or Supreme provide to match nearly all application...

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DIL 402 Expedis Select/Supreme - 9

Greatest Variability in Contact Force Widest Temperature Range from -180°C to 2000°C The DIL 402 Expedis® series is the first horizontal dilatometer series on the market which allows for force modulation and, by this means, bridges the gap between dilatometry and thermomechanical analysis under oscillatory load. To cover this temperature range, different furnaces are available and can be used both in the single furnace and double furnace format. For test runs under static force conditions, different contact forces can be selected. Therefore, both models are ideally suited to measure not...

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Smart Usability Means More Than Just “Easy to Use“ Automatic Sample Length Detection Large Measurement Range with Constant Resolution Perfect Temperature Stability of the Measuring System Measuring the sample length with a caliper runs the risk of result scatter, especially for soft samples. The DIL 402 Expedis® is capable of detecting the initial length of a sample automatically prior to the start of a test run under conditions identical to those during the measurement itself. In the past, it was often necessary to adapt the measuring range to the expected expansion or shrinkage of the...

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Temperature Measurement at the Right Spot In order to conveniently measure various sample lengths, the thermocouple (if used) is adjustable. A guiding rod accommodates the thermocouple to place it in the desired position without bending. A stable position of the sample inside the sample holder is a deciding factor for successful measurement results. The MultiTouch feature places the sample into the optimum position using a unique, tail-like motion.

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Outstanding Conditions for Pure Atmospheres Separate Gas Paths for Protective and Purge Gases When using the three mass flow controllers (MFC, optional), the gas flow paths inside the instrument are split: the protective gas first passes through the measuring cell and then enters the sample chamber, whereas the purge gas(es) 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 MFC is integrated, the gas takes the same path as the protective gas mentioned above. Schematic of the...

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Silicon carbide furnace with transfer line connected for evolved gas analysis Vacuum-tight Design for Best Sample Conditions Oxygen-Free Measurement for Investigating Metals and Alloys Identifying by Evolved Gas Analysis The instrument can be equipped with evacuation systems such as AutoVac for fast evacuating and gas-refilling as well as measurements under vacuum. During the test run, in order to keep the residual oxygen concentration at the lowest possible level, the OTS® (Oxygen Trap System) can be applied. A getter ring on a ceramic substrate is mounted in the sample carrier tube and...

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