• Measurement of Elastic and Damping Properties: Young's modulus, shear modulus, Poisson's ratio, and Internal Friction (Q-1)
• Quality Assurance and Quality Control: Product testing/strength prediction/defect detection...
• Statistical Process Control: Upper/Lower control limits, statistical designed experiments...
• Thermal Shock Testing: Monitor changes in properties on the same sample (see ASTM C1548)
See client data for some examples.
A refractories company, RHI Canada, are using Buzz-o-sonic to replace the slower, more costly cold crushing strength test (a 25% replacement for some product lines). An article describing this in more detail was published in Ceramic Industry magazine*. See our client data page for more details.
* Paul A. Bosomworth and Pierre-Alexis Anctil, "Using IET to Reduce Production Costs," Ceramic Industry, 10-11 (November 2009)
Elastic materials such as ceramics, metals and composites (including coated materials). Organic materials - polymers and wood - can also be tested, because Buzz-o-sonic measures the dynamic elastic properties at low strains.
Although frequency equations for impulse-excited solids are only available for simple shapes such as bars, rods, discs, tubes, rings, and plates, Buzz-o-sonic can be used to test more complex shapes. For a given size and mass, the resonant frequencies of an impulse-excited solid are often found to correlate to strength and density; and internal friction measurements often reveal defective parts. Also, a wide range of sizes can be tested. High temperature system also available. Please see our High Temperature page. We provide custom systems. Let us know your needs.
• Refractories - detect cracks in calcium silicate slab insulation. Cut costs in pressed chrome-mag shapes by replacing slow and costly cold crushing strength tests...
• Oil Industry - measure the Young's modulus of core samples
• Concrete - monitor curing, test compressive strength from an established correlation to Young’s modulus or resonant frequency
• Advanced Ceramics - measure Young's/bulk moduli of ballistic ceramic armor tiles and AlN structural ceramics
• Glass - measure the Young's modulus of the glass used in CRT screens
• Defense - the U.S. Navy uses Buzz-o-sonic for quick, low cost characterization of their advanced composites
• Graphite - measure Young's modulus of carbon brushes used in electric motors (correlates to commutating ability)
• Ceramic Filters - used to guarantee minimum strength from correlations with torsional resonant frequencies
• Metal Alloys - monitor changes in stiffness before and after rolling. Monitor ageing effects.
• Traditional ceramics - testing of experimental binders in low density acoustic ceiling tile
• High Temperature Testing - measure the elastic properties of reduced NiO-8YSZ anode supported bi-layer SOFC structures at elevated temperatures (up to 1000 °C) in ambient air and reducing environments (N2)
• Thermal shock Testing - ethyl silicate bonded MgO refractories, Si-O-C micro-composite foams derived from a preceramic polymer
• Cryogenic Testing - Young's modulus of filled cyanate ester and epoxy resins
• Fuel Cells (SOFCs) - quality testing of solid ZrO2 electrolyte and NiO-ZrO2 cermet anode supports used in Solid Oxide Fuel Cells (SOFCs), Young's modulus of tape cast nickel-based anode for SOFCs
• Coatings - measure Young's modulus of nylon/silica coatings and titanium/metal coated wires in-situ!.
• Dental Porcelains - measurement of Young's and shear moduli and Poisson's ratios
• Composites - measure Young's modulus of SiC/Ti and Al2O3-Al-Si composites
• Ceramic Foam - measure the elastic properties of SiC/Si and Si3N4 foam (green and fired)
• Paper-derived Composites - measure elastic properties of Si-SiC composites (samples too delicate to measure with ultrasonic velocity)
• Glass-to-metal seals - characterize the bond between glass and metal through internal friction and characteristic resonance frequencies
• Cordierite-mullite honeycombs - measure product quality. Identify weak parts through differences in longitudinal frequencies
• Foam Glass - detect defects
• Grinding/cut-off wheels - measure Young's and shear moduli and correlate to hardness letter grading
• Honing Stones - measure Young's modulus of honing stones to use as a measure of hardness letter grading
• Alumina Grinding Stones - measure Young's modulus. Estimate anisotropy and relate to pressing parameters
• Mesophase Sintered Parts - measure the Young's modulus of mesophase-based sintered parts - studied the influence of pressure and heating rate
• Ti6Al4V - measure the Poisson's ratio, speed of sound, and internal friction (Q-1) of cylinders used in ultrasonic medical applications
• Aluminum - measure resonant frequencies and internal friction to detect cracks in 80 lb blocks
• Cast Iron - measure internal friction to estimate graphite structure
• AlN - measure high modulus materials (~300 GPa)
• Polymers - measure the elastic properties of PEEK, epoxy, epoxy/carbon nanotubes, polyamide...
• Paper - measure Young's and shear moduli - related to processing parameters
• Mixed numerical-experimental technique - analysis of square alumina plates
• Bone-shaped Tensile Specimens - developed a method to measure the Young's modulus of metallic bone-shaped tensile specimens
Buzz-o-sonic is so versatile that it is being used in weather research at the Atmospheric Sciences Center, Desert Research Institute!
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