FIELD: non-destructive testing for diagnosing damage to metal coatings.
SUBSTANCE: to determine the degree of local cracking of a plasmonic metal coating deposited on a dielectric substrate, which consists in determining the characteristic parameter: 
where n is the surface density of microcracks in the studied area of the coating; 
is the average length of microcracks in the investigated area of the coating; ne is the surface density of microcracks of the reference coating; 
is the average length of microcracks in the reference coating; I is the intensity of the SERS signal of the reference coverage; Ie is the intensity of the SERS signal of the studied coverage area. To obtain a reference coating, a sample is obtained, which is a dielectric substrate coated with a plasmonic metal with a thickness of 50 to 200 nm, and an external force is applied to it, leading to cracking of the said coating.
EFFECT: increase in the reliability of the results of the study of the metal coating while ensuring the simplicity of survey.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| RENEWABLE CARRIER FOR SURFACE-ENHANCED RAMAN SCATTERING DETECTION | 2012 |
|
RU2543691C2 |
| METHOD FOR MANUFACTURING SERS-ACTIVE SUBSTRATE | 2022 |
|
RU2787341C1 |
| OPTICAL SENSOR WITH MULTILAYERED PLASMON STRUCTURE FOR IMPROVED DETECTION OF CHEMICAL GROUPS THROUGH SERS | 2005 |
|
RU2361193C2 |
| CARTRIDGE FOR COLLECTION AND ANALYSIS OF FINE PARTICLES | 2022 |
|
RU2821797C2 |
| METHOD FOR PRODUCING THIN FILMS FROM COLLOIDAL SOLUTIONS OF NOBLE METAL NANOPARTICLES AND THEIR ALLOYS OBTAINED BY PULSED LASER ABLATION FOR ENHANCED RAMAN SPECTROSCOPY | 2022 |
|
RU2789995C1 |
| CHEMICALLY MODIFIED PLANAR OPTICAL SENSOR, METHOD OF MAKING SAME AND METHOD OF ANALYSING POLYAROMATIC HETEROCYCLIC SULPHUR-CONTAINING COMPOUNDS USING SAME | 2015 |
|
RU2572801C1 |
| DEVICE FOR AMPLIFICATION OF RAMAN SCATTERING OF LIGHT | 2018 |
|
RU2696899C1 |
| METHOD FOR MANUFACTURING SURFACE-ENHANCED RAMAN SPECTROSCOPY TAGS | 2020 |
|
RU2804303C2 |
| DIMERIC OCCLUDANT NANOSTRUCTURE, LABELLED WITH MOLECULE, ACTIVE WITH RESPECT TO RAMAN SCATTERING, LOCATED IN INTER-PARTICLE COMPOUND, APPLICATION AND METHOD OF OBTAINING THEREOF | 2010 |
|
RU2542386C2 |
| PLANAR NANOSTRUCTURED SENSOR BASED ON SURFACE PLASMON RESONANCE TO ENHANCE RAMAN LIGHT SCATTERING OF HUMAN PLATELETS AND METHOD FOR ITS PRODUCTION | 2022 |
|
RU2788479C1 |
