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  • Microwave Nondestructive Testing of Composite Materials using Free-Space Microwave Measurement Techniques
    content, moisture content, etc.) by suitable modeling and calibration. We have employed a free-space microwave measurement (FSMM) system which can measure electromagnetic properties (complex permittivity, complex permeability, reflection coefficients, etc.) for evaluation of composite materials.
  • Temperature Coefficient and Ageing of BAW Composite Materials
    are reported on hermetic packaging, temperature cycle testing, temperature coefficient measurements, and preliminary ageing. This paper will report on progress made in ageing studies and temperature cycling of 644 MHz temperature compensated resonators. Thin film resonators may be composed of materials
  • DMA Testing for Long Term Material Performance (.doc)
    Rheometer. Rheology is the science that studies the deformation and flow of materials, whether in liquid, gel, melt, solid, or composite form, in terms or their elasticity and viscosity. Elasticity is the ability of a material to store deformational energy, and can be viewed simply as the capacity
  • Application of IR - NDT to Different Aeronautical Plastic Materials (.pdf)
    The application of IR Non Destructive Testing to three thermoplastics (HDPE, PVC & PMMA) and one thermoset composite material (GFRP) is the target of the work. IR Non Destructive Testing is fast, noncontact, safe and is considered as one of the most useful techniques for detection and evaluation
  • Urban Aeronautics is testing its Mule, a UAV that can hover and cruise at up to 100 mph
    hovering or render the ducts "transparent " to the airflow when in forward flight. Fancraft technology also relies on high-efficiency engines, strong, light composite materials, flyby- wire and advanced autopilot control. The turboshaft engine being evaluated on the prototype is a Turbomeca Arriel 1D1
  • Dynamic Testing Leads to Improved Fibers
    the basis for today's high-tech composite materials that are inexorably replacing traditional materials in applications from artificial organs to super-absorbent diapers, to construction materials for aircraft, automobiles and space stations. Customer demand for products having higher load bearing
  • Testing to Improve the Durability of Artificial Heart Valves
    leaflets that mimic natural valve leaflet structure fabricated from fiber-reinforced composite material will minimize leaflet stresses and decrease tears and perforations.
  • Fatigue Failure Analysis of Enhanced 35N LT (R) (.pdf)
    An experiment was conducted by Fort Wayne Metals of 0.007" (0.178 mm) diameter wires of both solid system and composite materials. The experiment consisted of evaluation of two melting practices used to produce ASTM F 562 material. The typical system includes the intentional addition of titanium
  • Artificial Annulus Fibrosus Model
    in a relevant manner is difficult because of natural tissue variability and limited life. Existing synthetic approaches using silicone rubbers are inadequate because of their poorly matched mechanical properties. CPG has developed a more relevant composite structure that will simplify fatigue testing

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