The Analysis of Resistance to Brittle Cracking of Tungsten Doped TiB2 Coatings Obtained by Magnetron Sputtering
Source abstract
Abstract
In this work, the authors present the possibility of characterization of the fracture toughness in mode I (KIC) for TiB2 and TiB2 coatings doped with different concentration of W (3%, 6% and 10%). The Young’s modulus, hardness and fracture toughness of this coatings are extracted from nanoindentation experiments. The fracture toughness was evaluated using calculation of crack length measurement. An important observation is that increasing tungsten concentration in the range 0–10% changes the microstructure of the investigated coatings: from columnar structure for TiB2 coating to nano-composite structure for Ti-B-W (10%) coating. It can be concluded that doping with concentration 10 at.% W causes an increase of the fracture toughness for the tested coatings.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Advanced materials and composites · Advanced ceramic materials synthesis
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Affiliations
Łukasiewicz Research Networks–Institute for Sustainable Technology, 6/10 Pułaskiego St., 26-600 Radom, Poland
References (16)
Show source-provided references
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