Non destructive quality control

- CIR Laboratory's NDT
The non destructive testing (NDT) techniques can be major tools for industrial materials quality control.
However, the success of NDT relies on the awareness of available techniques as well as the properties of the material to characterize.
CIR Laboratory expertise in materials science as well as its experience in the field of NDT are available to you for organizing and realizing successful trials adapted to your company's requirements.
CIR Laboratory applies and develops NDT procedures according to the type and geometry of the material to be analysed, and to the quality criteria established in a preliminary analysis.
The SonicByteTM technology, co developed by Dr. Claude Allaire, makes NDT applicable both to homogenous (ex.: metals and ceramics) and heterogeneous (ex.: refractories and carbon products) materials, at ambient or high temperature.
- Offered services
Testing methods
We specialize in NDT services using the following techniques:
- Optical methods
- Visual observations
- Microscopic observations
- Mechanical vibration
- Acoustic resonance (SonicByteTM)
- Non linear acoustic (SonicByteTM)
- Acoustic attenuation and dispersion(SonicByteTM)
- Acoustic signature (SonicByteTM)
- Ultrasounds (V-meter)
- Offered NDT services
- At laboratory
- In plant
- At construction site
Industrial activities
Our NDT services apply to the following industrial activities:
- Research and development
- Manufacturing and shaping processes optimization
- Effect of thermal treatments on the residual properties of metals
- Mechanical properties monitoring during concretes curing and/or firing
- Quality control
- Surface defects
- Internal defects
- Cracks, porosity, grain boundaries
- Delaminations, separations
- Various heterogeneities
- Anisotropy
- Post-mortem (Failure analysis)
- Simulation testing
- Thermal shock resistance
- Mechanical impact resistance
- Optical methods
- SonicByteTM Technology
This novel technology:
- Is designed for the characterization of both homogeneous and heterogeneous materials
- Is based on the relationship between the acoustic behavior of materials (resonance frequencies) and their mechanical properties
- Young's (or elastic) modulus
- Coulomb's (or shearing) modulus
- Is the result of several years of R&D on the characterization of refractory materials which contains
- Pores
- Cracks
- A matrix and multiphased aggregates
- Allows characterizing pieces having small dimensions (ex.: laboratory samples) or large dimensions (ex.: carbon electrodes used in electric arc furnaces)
- Allows characterizing materials behavior at room and high temperature to evaluate the effect of
- The curing
- The firing
- The sintering
- The thermal fatigue
- Thermal shock
- Thermal cycling
- The mechanical fatigue
- Impacts
- Abrasion
- Erosion
- Allows identifying damage orientation and estimating defects size
- Allows identifying the nature of the critical defects
- Microstructural defects
- Microcracking
- Phases distribution heterogeneity
- Chemical attack
- Porosity
- Macrocracks and delaminations
- Microstructural defects
- Allows characterizing materials in function of 4 quality estimators
- Resonance frequency
- Non linear acoustic behavior
- Acoustic attenuation and dispersion
- Acoustic signature
- Do not use FFT (Fast Fourrier transform) for signal analysis since this mathematical function:
- Requires high amount of active memory (RAM)
- Is applicable only to materials presenting a linear behavior (ex.: metals and fine ceramics)
- Is affected by the surrounding noise
- Can lead to false results with damaged materials
(For more details about this technology, see SonciByteTM)
| → See: | (1) - Examples of works conducted in plant and in laboratory with SonicByteTM; |
| (2) - Examples of companies using our services. |
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