The use of the indentation loading curve to detect fracture of coatings

The indentation load P-displacement h-curve and the derivative partial derivativeP/partial derivativeh(2) are used to assess the onset of radial cracking, delamination and substrate yield. Particle filled hybrid organic-inorganic coatings on glass substrates were used as model materials. (C) 2001 Elsevier Science B.V. All rights reserved.