Mechanical Characterization & Analysis User Center

Test Facility for Composites and Their Constituents

 
 
Ceramic Fiber/Ceramic Matrix Composite
   

Six in-house developed electromechanical, universal test machines:

  • 10 kN load capacity, 150 mm stroke, and 8 nm displacement resolution.
  • Computerized data acquisition and control.
  • Environmental chambers to conduct tests in controlled atmospheres (e.g., inert gases with less than 10 ppm O2, oxidizing and reducing environments, water vapor).
  • Non-contact laser extensometry.
  • Various specimen geometries, gripping arrangements, and fixtures (e.g., shoulder-loaded tensile specimens, minincomposites, single small diameter fibers and filaments, double- notched shear specimens, Iosipescu shear specimen).

Micromechanical universal testing machine:

  • 1000 N load capacity, 25 mm stroke and 100 nm displacement resolution.
  • Equipped with miniature load cells, encoders and capacitance gauges.
  • Specially suited for composite interfacial testing by means of single-fiber push-in and push-out tests.
  • Array of indenter geometries (e.g., Vickers, Knoop, Cube Corner, Diamond and WC flat punch) to conduct indentation tests.

 

 


 Oak Ridge National Laboratory