EP 0731908 A1 19960918 - METHODS AND APPARATUS FOR INDENTATION, SCRATCH OR TRIBOLOGICAL TESTING
Title (en)
METHODS AND APPARATUS FOR INDENTATION, SCRATCH OR TRIBOLOGICAL TESTING
Title (de)
VORRICHTUNG UND VERFAHREN FÜR EINDRUCK-, RITZ- ODER TRIBOLOGISCHE PRÜFUNGEN
Title (fr)
PROCEDES ET APPAREILS D'ESSAIS DE PENETRATION, DE RAYURE OU TRIBOLOGIQUES
Publication
Application
Priority
- GB 9502331 W 19951002
- GB 9419724 A 19940930
- GB 9514366 A 19950713
Abstract (en)
[origin: WO9610737A1] A scratch tester is described, in which a film or coating on a sample (10) is scratched by a stylus (14) in order to examine qualities such as its cohesion or adhesion to the substrate. Simultaneously or subsequently, the scratched surface is illuminated by laser light, e.g. through a microscope (42), in order to generate Raman scattered light. The Raman scattered light passes back through the microscope (42) and is analysed to determine stresses or strains present in the scratched region. This enables the determination of quantitative information about the quality of the film or coating. Similar Raman analysis methods may be used in indentation testing and tribological testing.
IPC 1-7
IPC 8 full level
G01J 3/44 (2006.01); G01N 3/46 (2006.01); G01N 3/02 (2006.01); G01N 3/06 (2006.01)
CPC (source: EP)
G01J 3/44 (2013.01); G01N 3/46 (2013.01); G01N 2203/0286 (2013.01); G01N 2203/0641 (2013.01)
Citation (search report)
See references of WO 9610737A1
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
DOCDB simple family (application)
GB 9502331 W 19951002; EP 95932849 A 19951002