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  • Glass Semiconductor Softens With Low-Power Laser, Then Re-Hardens
    soft. A combination of 80 percent selenium and 20 percent germanium is the "magic formula" where the material is neither too hard nor too soft, and well suited for forming a glass. Scientists call this point the rigidity transition. Scientists are very interested in studying why the 80-20 ratio works
  • Low Temperature Properties of Polymers (.pdf)
    polymers begin to stiffen up and they go through. what is known as the `glass transition' to become effectively glassy solids with all the properties of. glass i.e. they become very hard and also very brittle. This is shown in the graph below for a typical polymer and the stiffness can rapidly increase
  • Epoxies for OptoElectronic Packaging: Applications and Material Properties (.pdf)
    Optics, optical epoxies, glass transition, fluorescence. 1.0 Introduction. resistance calculations are shown, and thermal. It is widely known about the use of epoxies. conductivity is discussed. The 2nd application is the. for microelectronic packaging. Since they were. encapsulation or protection
  • Thermoplastic Polymide - Polyetheretherketone Blends with Exceptional High Temperature Properties (.pdf)
    Innovative. for a wide-array of applications. Plastics as EXTEM* UH resin8-9. It is the highest glass. transition temperature, amorphous thermoplastic resin. Introduction. available commercially. EXTEM UH resin offers good. dimensional stability, high temperature strength, creep. resistance and flame
  • Comparison of Block and Random Ethylyene-Octene Copolymers Based on the Structure and Elastomeric Properties (.pdf)
    and high melting. Nanoscope IIIa (Digital Instruments, Santa Barbara, CA). temperature, alternating with amorphous ethylene-octene. operating in the tapping mode. blocks (soft) with high comonomer content and low glass. transition temperature. The characterizations of OBCs,. Results and Discussion
  • Optical Properties of Single-Crystal Sapphire Fibers
    used to deliver Er: © 1997 Optical Society of America. YAG laser fluences as high as 200 J cm2. However,. 5934. APPLIED OPTICS. Vol. 36, No. 24. 20 August 1997. fluoride glass fibers have major drawbacks: limited. mechanical strength, low glass transition tempera-. ture 150 °C , and chemical
  • Nanocrystals are hot
    surprise, germanium nanocrystals in glass had to be superheated to melt.". Additionally, in bulk materials, the interface energy responsible for the transition from solid to liquid at the melting temperature creates a roadblock in the opposite direction and acts as an energy barrier to freezing
  • The Challenges of Measuring Moisture Content (.pdf)
    content provides information about texture since increasing levels of moisture provide mobility and lower the glass transition temperature. 13478-00 AN, The Challenges of Measuring Moisture Content. The Challenges of Measuring Moisture Content. By Brady Carter. Moisture content is a measure

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