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The methods used to inspect and evaluate materials, devices, and products are now based on imaging systems that collect digital data and process and interpret them through specially developed computer algorithms. Lawrence Livermore's Nondestructive and Materials Evaluation Section has been developing a wide range of imaging systems, implementing them through a range of technologies, including digital radiography, computed tomography, machine vision, ultrasonics, and infrared computed thermography. Applications of these various technologies are described in the article. They demonstrate the range and increasing flexibility of the concept of nondestructive evaluation.
Composed of alternating layers of two different materials as thin as a few atoms, multilayers offer extraordinary strength, hardness, heat resistance, and unexpected new properties. At Lawrence Livermore National Laboratory, researchers are pioneering new applications for these materials. They have synthesized multilayers from 75 of the 92 naturally occurring elements in elemental form or as alloys or compounds. The team has emerged as one of the world leaders in multilayer science and its application and has forged partnerships in government and industry to develop and apply multilayer materials. The article describes current and future applications of multilayers, including high-strength aircraft engine parts, mirrors for astronomical imaging, high-energy capacitors, and thermo-electric devices.
and LLNL Disclaimers