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  • Optical Absorption in Sapphire
    on three boules of Czochralski-grown single-crystal aluminum oxide with differing starting material purities. The initial powder purities were 99.99%, 99.999%, and 99.999999%. In addition to the VUV measurements, calorimetric absorption results obtained in the visible and near-infrared (IR
  • Is Moisture Absorption A Problem With Composite Bearings?
    to injection molded thermoplastic bearings. This type of bearing material is subject to swelling when improperly sealed and exposed to environmental moisture. This swelling is in part inherent in the compositional structure of a sintered thermoplastic resin, but is also exacerbated by the fact
  • Moisture Ingress and Absorption in a CCD Package
    the moisture ingress speed through a sealed joint and the evolution of the moisture amount inside the cavity. In a first step, a characterization of the organic materials is carried out. The diffusion and saturation coefficient of the moisture inside the material are calculated. Then, a 2D finite element
  • Classifying Polymers and Screening
    and the intensity of those absorptions. The resulting spectral scan is typically specific to a general class of material.
  • Cool Thermodynamics: The Engineering and Physics of Predictive, Diagnostic and Optimization Methods for Cooling Systems
    ) chillers with substantial material on heat-driven absorption chillers.
  • Haze Testing
    - not for opaque ones. Sometimes, haze is considered to be the opposite of gloss, the absorption of an incident beam. Note, however, haze testing actually measures absorption, transmittance and deviation of a direct beam by a translucent material.
  • IR, Nuclear and Beta Gauge Instruments
    IR, nuclear and beta gauge instruments use the absorption of radiation to measure the thickness or basis weight of webs, sheet materials or coatings. On nonmetallic materials such as paper or plastic films or webs, the amount of radiation is reflected back or transmitted through the material
  • Moisture Control Specifications
    All SMD packed in Tape and Reel is Dry Packed. This method helps to avoid damage from moisture absorption and exposure to solder reflow temperatures that can result in yield and reliability degradation from a combination of rapid moisture expansion and material mismatch.

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