Introduction to the Principle and Functions of a High-Temperature Contact Angle Tester
The high-temperature contact angle tester is used to measure the contact angle of liquids on solid surfaces at elevated temperatures; specifically, it determines the wettability of a liquid on a solid by measuring the magnitude of the high-temperature contact angle formed at the three-phase boundary between the liquid, solid, and gas. It is widely employed in testing and research across fields such as silicon wafers, liquid crystals, glass, fibers, synthetic materials, inks, coatings, and agrochemicals. The high-temperature contact angle tester operates by depositing a droplet onto a horizontal solid surface; the contact angle is defined as the angle formed at the three-phase junction where the gas–liquid interface and the solid–liquid interface meet, with the liquid phase enclosed between these two tangents. TA-Z16B01
2019-07-29
High-Temperature Contact Angle Tester A high-temperature contact angle tester for evaluating the wettability of liquids on solids by measuring the contact angle formed at the liquid–solid interface under elevated temperatures. It is widely used in testing and research across fields such as silicon wafers, liquid crystals, glass, fibers, synthetic materials, inks, coatings, and agrochemicals.
A high-temperature contact angle tester is an instrument that measures the contact angle by placing a droplet on a horizontal solid surface and determining the angle formed at the three-phase junction of solid–liquid–gas, where the tangent to the gas–liquid interface and the tangent to the solid–liquid interface intersect to enclose the liquid phase.
TA-Z16B01 High-Temperature Contact Angle Tester Main functions:
1. It can measure static liquid/solid contact angles, as well as dynamic contact angles during heating and cooling cycles, capturing the temporal or temperature-dependent evolution of the contact angle.
2. Contact angle θ, droplet diameter D, droplet height H, and droplet volume V can be obtained online, enabling the calculation of the melt’s surface tension and, consequently, the evaluation of the melt’s wettability on the substrate material.
3. It enables experimental measurement of characteristic parameters for powder, green compacts, and bulk materials (such as sintering temperature, softening temperature, and melting point), thereby guiding the development and optimization of sintering processes for ceramic and powder metallurgy products.
4. It is possible to measure and record the deformation of samples with regular or irregular shapes during the sintering process; by correlating these measurements with the evolution of the microstructure, a deeper understanding of the sintering mechanism can be achieved.
5. It enables the measurement of the aforementioned multiple parameters across a temperature range from room temperature to 1600°C, and, with 50-step program settings, facilitates process analysis of complex heat-treatment procedures.
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