@article{gruss_davis_1999, title={Adhesion measurement of zirconium nitride and amorphous silicon carbide coatings to nickel and titanium alloys}, volume={114}, ISSN={["0257-8972"]}, DOI={10.1016/S0257-8972(99)00042-0}, abstractNote={Polycrystalline ZrN and amorphous Si0.57C0.43 coatings were deposited by cathodic arc evaporation and by plasma-assisted chemical vapor deposition (PACVD) respectively on Incoloy 825 (Inc. 825), Hastelloy C22 (Hast. C22) and Titanium Grade 12 (Ti. 12) substrates. Scratch tests were employed to assess the critical load for interfacial failure and fracture mechanisms for the various coating systems. Critical loads, characterized by continuous delamination of the coating, occurred at 41.2 N, 44.1 N and 29.4 N for ZrN deposited on Hast. C22, Inc. 825 and Ti. 12 respectively. Interfacial failure of the Si0.57C0.43-coated metallic substrates was dominated by brittle fracture of the Si0.57C0.43 coating. Critical loads of 2.9 N, 3.9 N and 6.8 N were obtained for Si0.57C0.43 deposited on Inc. 825, Hast. C22 and Ti. 12 respectively. Work of adhesion values were calculated from two well-known models, namely the Bull–Rickerby and Laugier models, and from a model that incorporates elastic–plastic indentation. The ranking of the adhesion for the coating–metal substrate combinations is (from best to worst): ZrN–Inc. 825, ZrN–Hast. C22, ZrN–Ti, Si0.57C0.43–Ti, Si0.57C0.43–Hast. C22 and Si0.57C0.43–Inc. 825.}, number={2-3}, journal={SURFACE & COATINGS TECHNOLOGY}, author={Gruss, KA and Davis, RF}, year={1999}, month={May}, pages={156–168} }
 @article{gruss_zheleva_davis_watkins_1998, title={Characterization of zirconium nitride coatings deposited by cathodic arc sputtering}, volume={107}, ISSN={["0257-8972"]}, DOI={10.1016/S0257-8972(98)00584-2}, abstractNote={Polycrystalline ZrN coatings with a composition of 58.41 at.% Zr and 41.59 at.% N were deposited by cathodic arc evaporation on to Incoloy 825, Hastelloy C22 and Titanium Grade 12 metal substrates. Analyses of the coatings by scanning electron microscopy and Auger electron spectroscopy revealed the presence of 1–8-μm-diameter macroparticles composed of Zr metal. Compressive stresses of 4.06, 3.88 and 2.69 GPa were measured via X-ray diffraction in the coatings deposited on Inc., Hast. and Ti. substrates, respectively. Values for Young's modulus and hardness of 458 and 27.65 GPa, respectively, were obtained via nanoindentation. Studies of the interfacial chemistry via Auger electron spectroscopy and transmission electron microscopy revealed chemically abrupt interfaces and good compositional uniformity throughout the thickness of the zirconium nitride coatings.}, number={2-3}, journal={SURFACE & COATINGS TECHNOLOGY}, author={Gruss, KA and Zheleva, T and Davis, RF and Watkins, TR}, year={1998}, month={Sep}, pages={115–124} }
 @article{tanikella_gruss_davis_scattergood_1997, title={Indentation and microcutting fracture damage in a silicon carbide coating on an incoloy substrate}, volume={88}, DOI={10.1016/S0257-8972(96)02910-6}, abstractNote={The fracture damage morphology for static indentation tests and controlled microcutting tests using a Vickers indentor was investigated for an amorphous silicon carbide coating deposited on an Incoloy substrate. Crack initiation thresholds were detected for both testing modes using an acoustic emission sensor. The fracture damage morphology for static indentation consisted of Hertzian-like cracks surrounding the indentation site with no lateral crack-chipping occurring up to the maximum indentation load of 8 N. In contrast, microcutting generates lateral cracks at the microcutting groove entrance for loads as low as 0.3 N. For loads up to 1 N, the groove damage was confined to the 5 μm thick coating and the fracture response is similar to that occurring in a monolithic brittle solid. At higher loads, extensive lateral crack chipping occurred along the microcutting grooves accompanied by coating decohesion at the root of the chip.}, number={1-3}, journal={Surface & Coatings Technology}, author={Tanikella, B. V. and Gruss, K. A. and Davis, R. F. and Scattergood, R. O.}, year={1997}, pages={119–126} }