2018
DOI: 10.1016/j.ceramint.2017.11.115
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Residual stress relief of hard a-C films though buckling

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Cited by 11 publications
(3 citation statements)
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“…energy outputs (40% and 50% laser outputs), it is inferred that TiC, characterized by relatively higher formation energy, is likely to be the primary phase formed. The sp 2 /sp 3 ratio was calculated to be 2.34 at 20% laser output in Table 2, while the 40% and 50% laser outputs showed ratios of 3.07 and 3.19, respectively; this is attributed to the accumulation of residual stress within the lattice due to the high thermal energy and carbon doping, leading to the formation of amorphous carbon over the solubility limit of carbon within the coating [39,40]. Figure 3 indicates the microstructural variation in the coatings using TEM images and SAED (selected area electron diffraction) patterns.…”
Section: Resultsmentioning
confidence: 99%
“…energy outputs (40% and 50% laser outputs), it is inferred that TiC, characterized by relatively higher formation energy, is likely to be the primary phase formed. The sp 2 /sp 3 ratio was calculated to be 2.34 at 20% laser output in Table 2, while the 40% and 50% laser outputs showed ratios of 3.07 and 3.19, respectively; this is attributed to the accumulation of residual stress within the lattice due to the high thermal energy and carbon doping, leading to the formation of amorphous carbon over the solubility limit of carbon within the coating [39,40]. Figure 3 indicates the microstructural variation in the coatings using TEM images and SAED (selected area electron diffraction) patterns.…”
Section: Resultsmentioning
confidence: 99%
“…However, after reaching 40% thermal energy, amorphous carbon began to form in the nitrogen vacancies or grains of TiZrN because the carbon solid solution limit had been exceeded. It was considered to be the result of the combination of thermal energy and incremental residual stress in the carbon-doped TiZrN coatings by the formation of carbides [22,23]. Using HR-XRD, Figure 4 shows the effect of doped carbon on TiZrN coatings according to the laser thermal energy applied.…”
Section: Resultsmentioning
confidence: 99%
“…Nevertheless, a similar Lc2, of 73 N, was achieved by Liu et al (2018) for a hydrogenated coating with thickness of 50 µm, deposited by anode layer ion source. For that case, the adhesion improvement was explained by a highly energetic chromium and carbon ion treatment that produced a graded interfacial structure.…”
Section: Adhesion Testmentioning
confidence: 76%