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Scratch Test

ScratchScratch

Gli scratch tester della CSM Instruments sono strumenti dedicati alla caratterizzazione delle proprietà meccaniche di film sottili e ricoprimenti, quali l'adesione, la deformazione e la rottura. La capacità degli scratch tester di caratterizzare i sistemi film/substrato e di quantificare parametri quali la forza d'attrito e l'adesione, usando vari metodi complementari li rende strumenti preziosi per la ricerca, lo sviluppo e il controllo qualità.

Scratch

La tecnica consiste nella creazione di un graffio sul campione in esame ottenuto con una punta. Il materiale della punta (di solito diamante o carburo di tungsteno) è guidato sulla superficie con carico costante, incrementale o progressivo. A un certo carico critico la superficie si segna, a un altro il film di ricoprimento comincia a rompersi e a un terzo cede completamente. I carichi critici sono rilevati in modo molto preciso per mezzo o di un sensore acustico o attraverso l'osservazione di un microscopio ottico incomporato. I valori dei carichi critici sono utilizzati per quantificare le proprietà di adesione di diverse combinazioni film/substrato. Oltre all'emissione acustica, gli scratch tester misurano la forza normale applicata, la forza tangenziale (attrito) e lo spessore di penetrazione. Questi parametri forniscono una caratterizzazione specifica del sistema substrato-film.

 

Catalogo sullo Scratch...

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Scratch Catalog
Products catalogs
Application Bulletin n°33

Applications of the ConScan Surface Profilometer
Application Bulletin n°32

Characterization of thermal spray coatings by  instrumented indentation and scratch testing Part II:  Indentation of plasma sprayed coatings
Application Bulletin n°30

Nanoindentation and Nanoscratch of Oxide Coatings on Thin Film Polymer Substrates

Measurement of Acoustic Emission during Microindentation
Application Bulletin n°28

Characterization of thermal spray coatings by instrumented indentation and scratch testing: Part l
Application Bulletin n°27

Mechanical properties of ultrananocrystalline diamond (UNCD) films with an influence of the nucleation density on the structure
Application Bulletin n°26

The Influence of the Rockwell Indenter Tip Geometry on the Progressive Load Scratch Test
Application Bulletin n°25

Influence of indenter tip radius on the scratch resistance of an automotive clearcoat
Application Bulletin n°18

Indentation, Tribology and Scratch Test Standards
Application Bulletin n°16

- Automotive Applications
- Tribometer Lifetime Study of Wheel Bearings
- Elasto-plastic properties of polymeric varnishes
- Wear properties of rubber seals
- Friction and wear on Brake Pads
- Hardness of DLC-coated tappets
- Controlled lubricant studies
- Scratch resistance of chrome-plated trim
- Adhesion of polymeric bumper paint
- Mechanical properties of automotive tyre
Application Bulletin n°15

- Characterization of Polymers
- Quality Control of Minidisk polymer topcoat with Nano Scratch Tester and Tribometer
- Nano Scratch method developed as reference test for polymeric automobile topcoats
- Failure properties of nail varnish investigated with the Micro Scratch Teste

Application Bulletin n°14

- Measurement of hardness as a function of depth in nitrided 316L stainless steel
- Scratch Test Atlas of typical failure modes obtained in scratch testing with the Revetest instrument
- High-Temp. Tribometer for friction comparison of automobile brake pad materials
Application Bulletin n°13

- Influence of tip size on the critical load during scratch testing with the Micro Scratch Tester
- Failure of TiN-coated polymer measured with the Pin-on-Disk Tribometer
- Nano-Scratch Tester (NST) for measurement of dielectric thin films

Application Bulletin n°12

- Micro-Electronic Applications
- Nano-Scratch Tester (NST) for characterizing anti-stiction coatings for Microsystems
- In-situ Integrated Circuit (IC) characterization with the Nano Hardness Tester (NHT)
- Quality control of Micro-Slit reflective coating with the Nano-Scratch Tester (NST)
Application Bulletin n°11

- Nanoindentation with spherical indenters for characterization of stress-strain properties
- Characterization of IC bonded gold wires with the Nano Hardness Tester (NHT)
- New Nano-Scratch Tester (NST) allows better magnetic hard disk characterization
Application Bulletin n°09

- MST Swinging Module for variable frequency scratch testing
- Combined NHT/SFM for investigation the mechanical properties of Cr2O3 thin films
- New Industrial Calotest allows greater fl exibility for measuring over/undersized samples
Application Bulletin n°08

- New Industrial Calotest for improved coating thickness determination
- Micro Hardness Tester (MHT) for fracture toughness determination of brittle materials
- New Tribometer option for reciprocating wear testing of plasticised tickets
- Low-load Micro Scratch Tester (MST) for characterization of thin polymer films
Application Bulletin n°07

- Forthcoming Nano Scratch Tester (NST) for characterization of ultra-thin films
- Micro structured silicon wafers compared with the CSM Tribometer
- Combined NHT/SFM for investigating the tip defect of common indenters
Application Bulletin n°06

- Micro Scratch Tester (MST) for assessing the scratch resistance of SiO2 passivation layers
- High-Vacuum Tribometer for MoS2 alloy characterization
- Combined NHT/SFM for characterization of Silicon materials
Application Bulletin n°04

- Modified Pin-on-Disc Tribometer for controlled lubricant studies
- Diamond knife for MST characterization of coated optical fibers
- Controlling magnetic hard disk adhesion to ceramic substrates with the MST
- Scanning force microscopy of low load indentations into aluminum thin films
Application Bulletin n°03

- New integrated SFM objective for better characterization of NHT indentations
- Modified Micro Scratch Tester (MST) for im­proved force resolution at low loads
- Hard coating characterisation with the CSM Tribometer
Application Bulletin n°01

- New Nano-Hardness Tester (NHT) for characterization of MoS2 thin films
- Automobile bumper paint adhesion analyzed using Micro Scratch Tester (MST)
- Using CSM's Revetest (RVT) scratch-tester for Rockwell indentation
- Hard coating characterization with the Revetest (RVT) scratch tester
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