期刊
SURFACE & COATINGS TECHNOLOGY
卷 127, 期 2-3, 页码 265-272出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(00)00640-X
关键词
nano-indentation; elastic properties; sol gel; glass
A theoretical equation to determine the dependence of load P on the displacement h for plastic and elastic deformations under a Berkovich indenter is derived. This theoretical P-h relation was fitted to the experimental data for organic-inorganic hybrid coatings and glass and used to determine the elastic modulus and hardness. Either a plot of P/h(2) vs, hi (or h) or a plot of partial derivative P/partial derivative h(2) vs. h(2) (or h) can be used to assess fracture. Advantages and disadvantages of these approaches are discussed. (C) 2000 Elsevier Science S.A. All rights reserved.
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