Atomic force microscopy observations of debonding in 304 L stainless steel thin films

Talea, Mohamed; Boubeker, B.; Cleymand, Franck; Coupeau, C.; Grilhé, J.; Goudeau, P.

doi:10.1016/s0167-577x(99)00127-5

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…They studied both C-lean and C-alloyed films. However, other works pointed out impaired susceptibility to film cracking and delamination of SS films when exposed to contact loads [26][27][28] . Talea et al 26 and Colin et al 27 reported debonding induced by compressive loads in 304L stainless steel films deposited onto polycarbonate substrates.…”

Section: Introductionmentioning

confidence: 96%

“…However, other works pointed out impaired susceptibility to film cracking and delamination of SS films when exposed to contact loads [26][27][28] . Talea et al 26 and Colin et al 27 reported debonding induced by compressive loads in 304L stainless steel films deposited onto polycarbonate substrates. Eymery and Boubeker studied film-to-substrate adherence for SS films sputtered from 304L targets onto a wide variety of substrates 28 , pointing out impaired film capacity to bear contact and scratch loads 28 and emphasizing the role of high compressive stresses observed in the films on the impaired film adherence 28 .…”

Section: Introductionmentioning

confidence: 96%

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The Effect of Nitrogen Flow Rate on the Loadbearing Capacity from Nano- to Macro-Hardness of Austenitic Stainless Steels Magnetron Sputtering-Coated with Stainless Steel Films

2020

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UNS S31603 stainless steel (SS) substrates were covered by reactive magnetron-sputtering with protective SS coatings of the same steel specification. A mechanical characterization study (through nano-, micro-and macro-hardness tests) of samples obtained under two different sputtering conditions and varying the N 2 gas flow rate was carried out. This contribution aimed at appraising the effects of varying the nitrogen flow rate on hardness, elastic modulus, and susceptibility to indentation-induced crack formation of the coated SSs. Nitrogen-free samples displayed body-centered cubic (BCC) films with 9.0-9.4 GPa hardness and 203-206 GPa elastic modulus, while their susceptibility to indentation-induced cracking varied between superior and moderated among the two sets of sputtering conditions studied. Samples alloyed with 4-6 N at-% displayed a predominantly face-centered cubic (FCC) structure, 9.4 GPa hardness, 196-218 GPa elastic modulus, and superior resistance to crack formation. Samples with 11.5-22.0 N at-% were fully composed of the FCC structure, displayed 12.4-15.2 GPa hardness, 188-193 GPa elastic modulus, and moderated resistance to indentation-induced crack formation. Samples with 47.0 N at-% displayed FCC compound nitride structure, for which hardness and elastic modulus were 8.1 GPa and 139 GPa, respectively. These samples displayed low resistance to crack formation.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 96%

The Effect of Nitrogen Flow Rate on the Loadbearing Capacity from Nano- to Macro-Hardness of Austenitic Stainless Steels Magnetron Sputtering-Coated with Stainless Steel Films

2020

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“…The stress magnitude is often very high (larger than the elastic limit of the same material in the bulk state) and thus spontaneous delamination phenomenon such as buckling (2D) or wrinkling (1D) may appear for a critical film thickness (relaxation of the stored elastic energy) when extracting the sample out side the deposition chamber [1][2][3][4]. Although a lot of theoretical works have been done [5] to develop mechanical models and calculations (elasticity of thin plates, fracture mechanic, finite element, analytical calculation) with the aim to get a better understanding of driven mechanisms giving rise to this phenomenon, only a few experimental works [1][2] have been done on this subject to support these theoretical results and nothing concerning local stress/strain measurement mainly because of the small dimension of the buckling (few tenth µm).…”

Section: Introductionmentioning

confidence: 99%

Residual stress mapping by micro X-ray diffraction: Application to the study of thin film buckling

et al. 2002

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: Thin films deposited by Physical Vapour Deposition techniques on substrates generally exhibit large residual stresses which may be responsible of spontaneous detachment of the film from its substrate and in the case of compressive stresses, thin film buckling. Although these effects are undesirable for future applications, one may take benefit of it for thin film mechanical properties investigation. Since the 80's, a lot of theoretical works have been done to develop mechanical models with the aim to get a better understanding of driven mechanisms giving rise to this phenomenon and thus to propose solutions to avoid such problems. Nevertheless, only a few experimental works have been done on this subject to support these theoretical results and nothing concerning local stress/strain measurement mainly because of the small dimension of the buckling (few tenth µm). This paper deals with the application of micro beam x-ray diffraction available on synchrotron radiation sources for stress/strain mapping analysis of gold thin film buckling.Résumé : Les films minces déposés par des techniques de dépôt physique sous vide sur substrats présentent généralement des contraintes résiduelles très élevées qui peuvent être responsables du délaminage spontané du film et dans le cas de contraintes de compression, de l'apparition de cloques. Bien que ces décollements soient indésirables pour les applications technologiques futures, ils peuvent être mis à profit pour analyser les propriétés mécaniques locales dans ces systèmes. Depuis le début des années 80, un grand nombre d'études théoriques ont permis de développer des modèles dans le soucis de mieux comprendre ces phénomènes de flambage. Néanmoins, la validation de ces modèles repose sur une confrontation avec des études expérimentales qui demeurent jusqu'à présent très rares. Ainsi, les champs de déformations associés à ces structures de décollements n'ont pas été déterminés du fait principalement de la faible taille des objets à analyser (quelques dizaines de microns). Cet article présente les premières expériences de diffraction des rayons X en micro faisceau réalisées sur une source de rayonnement synchrotron pour cartographier les déformations/contraintes associées à une cloque sur un film d'or.

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“…The stress magnitude is often very high (larger than the elastic limit of the same material in the bulk state) and thus spontaneous delamination phenomenon such as 1D -wrinkling (see figure 1) or 2D -buckling (figure 2) may appear for a critical film thickness (relaxation of the stored elastic energy) when extracting the sample out side the deposition chamber [1][2][3][4]. Although a lot of theoretical works have been done [5] to develop mechanical models and calculations (elasticity of thin plates, fracture mechanic, finite element and analytical calculations) with the aim to get a better understanding of driven mechanisms giving rise to this phenomenon, only a few experimental work [1][2] has been done on this subject to support these theoretical results and nothing concerning local stress/strain measurement mainly because of the small dimension of the buckling (few tenth µm).…”

Section: Introductionmentioning

confidence: 99%

Macro Stress Mapping on Thin Film Buckling

Goudeau

Villain

Renault

et al. 2002

MSF

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: Thin films deposited by Physical Vapour Deposition techniques on substrates generally exhibit large residual stresses which may be responsible of thin film buckling in the case of compressive stresses. Since the 80's, a lot of theoretical work has been done to develop mechanical models but only a few experimental work has been done on this subject to support these theoretical approaches and nothing concerning local stress measurement mainly because of the small dimension of the buckling (few 10 th µm). This paper deals with the application of micro beam Xray diffraction available on synchrotron radiation sources for stress mapping analysis of gold thin film buckling.

show abstract

Atomic force microscopy observations of debonding in 304 L stainless steel thin films

Cited by 9 publications

References 10 publications

The Effect of Nitrogen Flow Rate on the Loadbearing Capacity from Nano- to Macro-Hardness of Austenitic Stainless Steels Magnetron Sputtering-Coated with Stainless Steel Films

The Effect of Nitrogen Flow Rate on the Loadbearing Capacity from Nano- to Macro-Hardness of Austenitic Stainless Steels Magnetron Sputtering-Coated with Stainless Steel Films

Residual stress mapping by micro X-ray diffraction: Application to the study of thin film buckling

Macro Stress Mapping on Thin Film Buckling

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