Ceramic material advancements have produced many new components to meet the needs of the growing technology requirements. Traditional NDT methods (UT, ET, RT, and PT) often provide incomplete results when used to inspect these components, leading to multiple costly and time consuming inspections. Process Compensated Resonant Testing (PCRT) has been demonstrated as an excellent alternative for inspecting ceramic parts that cannot be inspected with traditional NDT. PCRT goes beyond traditional resonance testing by applying pattern recognition algorithms and process control statistics to precise resonant data. PCRT is a trained method that learns which resonance variation is acceptable, and which is unacceptable, while also monitoring in-control processes. PCRT is used for studying structural integrity and functional performance in a variety of ceramic parts including ceramic balls, seal rings, and armor plates. PCRT is a whole body inspection that detects internal defects such as cracks, voids, and inclusions. PCRT can also perform surface inspection of balls, using Surface Acoustical Waves. PCRT can be performed in real manufacturing time, with inspection times measured in seconds, and computer control eliminates operator error and subjectivity. PCRT is a proven, emerging technique for quality verification and process control.

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