Дніпропетровський Національний Університет Залізничного Транспорту Імені Академіка В. Лазаряна
Днепропетровский Национальный Университет Железнодорожного Транспорта Имени Академика В.Лазаряна
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Priority to UA20041210926UpriorityCriticalpatent/UA10918U/en
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Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves
(AREA)
Investigating Strength Of Materials By Application Of Mechanical Stress
(AREA)
Abstract
Method of determining the stress of irreversible displacement of dislocations at loading of metals, through which in parallel with the diagram of loading is carried out the analysis of emissive acoustic signals within the range of frequencies of 100-150 kHz, which are emitted by moving dislocations. The range of zones are determined by changes in the quantity of signals per unit of time. The stress of the beginning of irreversible displacement of dislocations is defined by appearance of acoustic signals, which are i 50 % of background values.
UA20041210926U2004-12-292004-12-29Method of determining the stress of IRREVERSIble displacement of dislocations at loading of metals
UA10918U
(en)
Nmr-based methods for detecting ligands, where the ligand or target are hyperpolarised and the nmr-spectrum is compared with a reference spectrum of the ligand or target