FIELD: instrumentation.
SUBSTANCE: sound emission measurements of signals indicating fracture formation in fragile strained coat with additional measurement of aerosol concentration in near-surface layer of fragile stained coat are carried out. Concentration of micro particles depending on oxide film depth is defined by the formula: Ω=Kδ·lg(δ/δ10), where δ10 is oxide film minimum depth arbitrary taken to make 10 mcm; Kδ is the factor defined by strain indicator film depth and determined by experiments.
EFFECT: possibility to record structural material reconfiguration long before destruction.
2 cl, 5 dwg
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