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Polymers, metals, alloys, and composites used in a wide range of industries require exacting materials testing to meet specifications for mechanical response and thermal stability. In applications ranging from solar panels to optical assemblies, glasses, thin films, and coatings must be carefully selected to achieve the right optical characteristics. Whatever your application, partnering with a full-suite material testing lab will help you optimize your products from the ground up!
Covalent offers diverse mechanical analysis, thermal testing, electrical probing, and optical characterization methods for materials analysis to help you ensure your parts and products have precisely the right properties and performance.
Atomic Force Microscopy (AFM) measures surface topography of materials with sub-nm vertical resolution. The technique delivers fast data, with simple scans requiring only a few minutes to complete.
Capillary Flow Porometry (also called Porometry) is an optimal technique for characterizing through-pore size and size distribution in wettable materials, such as membranes, filtration media, ceramics, and papers. Covalent’s Porometry services use a top-of-line porometer from Anton Paar for maximized flexibility, speed, and reproducibility. See Also: Gas Adsorption Analysis for non-permeable solids
Cathodoluminescence (CL) is a combination microscopy and spectroscopy technique that produces high-speed spectral maps of optical emissions with nanoscale resolution. It is used to probe diverse features and properties of materials and devices, from the internal structures of direct bandgap semiconductors to surface plasmon resonances in metallic nanoparticles.
Dynamical mechanical analysis (DMA) is used to study changes in the mechanical properties of a material under periodic stress as the temperature is varied. DMA results are used to assess: glass transitions, melting points, elastic modulus, strain-to-break, toughness, creep, and numerous other thermal and mechanical properties.
Gas Adsorption Analysis (also called Physisorption Analysis or BET Analysis) is a highly flexible and accurate technique for measuring specific surface area, pore sizes / size distribution, and overall porosity of solid samples as well as active metal area, dispersion and crystallite size for materials with gas-reactive surface like catalysts. These can impact electrical, physical, and thermal properties and affect overall performance of devices and systems. See also: Capillary Flow Porometry (or Porometry) is an alternative porosity measurement technique suited for permeable samples.
Gas Pycnometry is one of the most widely used techniques for analyzing true and skeletal density of any solid (even ones which are porous, granular, and irregularly shaped!). It provides fast, high accuracy volume measurements that can be used to calculate density and porosity, and can be adapted to analyze purity, quality, volatile organic content, and stability of certain materials. Covalent uses an industry-leading Ultrapyc 5000 Gas Pycnometer from Anton Paar for true density analysis. This tool achieves best-in-class accuracy across the widest array of sample types, including coatings, polymer foams, cements, mining, pharmaceuticals, ceramics, catalysts, metallurgy and more.
Nanoindentation (nano-indent) is a quasi-static mode of nanomechanical analysis used to measure hardness and reduced elastic modulus of solid samples. It is especially useful for evaluating thin film coatings.
Nanomechanical scratch testing (nano-scratch) is an alternate nanomechanical testing mode to nano-indent or nano-wear box testing, which is used to measure force response and mechanical properties typically of thin films and coatings.
Nanomechanical wear testing (nano-wear box) is a nanomechanical testing mode - similar to nano-indent and nano-scratch analysis - used to evaluate wear resistance and other mechanical properties at sub-micron scales.
Photoelectron Spectroscopy in Atmosphere (PESA) is a technique used to analyze the work function of a surface: i.e., the amount of energy needed to remove an electron from the sample. Work function is particularly important to measure as it can determine the efficiency and other key properties of junction contacts. It is a fundamental property for Schottky barrier devices used in many of our electronics. In addition to measuring the work function, PESA can also be used for certain samples to estimate the density of states (DoS), highest occupied molecular orbital (HOMO) energy level, lowest unoccupied molecular orbital (LUMO) energy level, band gap and energy gap.
Raman spectroscopy is a chemical analysis technique which probes the vibrational modes of compounds. It produces a spectrum which can provide fingerprint identification of materials when compared against a reference library of known standards.
Glow discharge optical emission spectroscopy (GDOES) is a quantitative, chemical analytical technique used to study the elemental composition...
Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) is a highly sensitive chemical analysis technique which measures the elemental composition...