Failure Analysis of Lower Electrode Plates in Liquid Lenses
Liquid lenses based on electrowetting-on-dielectric (EWOD) technology rely on the integrity of the lower electrode plate to deliver stable, repeatable focal-length control in miniature optical systems. When the lower electrode plate degrades, lenses ex
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Thermal Expansion Anisotropy Analysis of Liquid Silicone Rubber (LSR): Mechanisms, Test Methods, and
Thermal expansion anisotropy analysis of liquid silicone rubber (LSR) quantifies how this high-performance elastomer expands at different rates along its flow, transverse, and through-thickness directions under thermal loading. Accurate characterizatio
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Liquid Differential Pressure Flow Testing: Principles, Methods, and Applications
Liquid differential pressure flow testing is a core measurement technique used to quantify the flow rate of liquids by measuring the pressure drop generated across a flow restriction or test component. Based on Bernoulli's principle and governed by in
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Coating Environmental Stability Testing: Methods, Standards, and Performance Evaluation
Coating environmental stability testing is a systematic evaluation process that measures how paints and protective coatings withstand ultraviolet radiation, humidity, temperature fluctuations, salt exposure, and corrosive pollutants over time. By combi
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Algae Resistance Testing of Coatings: Standards, Methods, and Evaluation Criteria
Algae resistance testing evaluates the ability of paint films and protective coatings to inhibit surface colonization by algae under accelerated laboratory conditions. Guided by standards such as ASTM D5589, GB/T 21353, and JIS Z 2911, accredited third
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Coating Molecular Weight Analysis: GPC/SEC Testing Methods, Standards, and Applications
Coating molecular weight analysis is an essential laboratory technique for characterizing the resins, binders, and polymer dispersions used in paints, coatings, and inks. By measuring parameters such as number-average molecular weight (Mn), weight-aver
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Coating High-Low Temperature Cycling Testing: Standards, Methods, and Failure Evaluation
Coating high-low temperature cycling testing is a laboratory environmental test that evaluates the durability and adhesion of coatings by repeatedly exposing coated specimens to alternating extreme low and high temperatures. This test reveals failure m
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Residual Stress Measurement of Coating Test Coupons: Methods, Standards, and Applications
Residual stress measurement of coating test coupons is a critical evaluation technique used to quantify the internal stresses generated during coating deposition processes such as thermal spraying, PVD/CVD, and electroplating. Uncontrolled residual str
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Coating Durability and Dust Resistance Performance Testing: Standards, Methods, and Applications
Coating durability and dust resistance performance testing is a critical quality assurance process that evaluates how protective and functional coatings withstand dust exposure, mechanical wear, and environmental aging over their service life. This tes
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Coating Wet Film Thickness Testing: Methods, Standards, and Applications
Wet film thickness (WFT) testing measures the thickness of a coating immediately after application, before solvents evaporate and the film cures, making it one of the most effective real-time quality control tools in the coatings industry. Governed by
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Coating Vibration-Combustion Simulation Assessment Test: Principles, Methods, and Applications
The coating vibration-combustion simulation assessment test evaluates the durability, adhesion, and fire-protective performance of coatings when exposed to simultaneous or sequential mechanical vibration and combustion conditions. This specialized test
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Coating Failure Analysis: Root Causes, Testing Items, and Diagnostic Methods
Coating failure analysis is a systematic laboratory investigation that identifies the root causes of defects such as delamination, blistering, cracking, corrosion, and discoloration in painted, plated, or functional coated products. By combining morpho
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