Diamond-coated tools often fail due to coating graphitization and delamination caused by poor adhesion, large contact stress, thermochemical reactions. To address these issues, this research utilized a combination of micro-nano double-layer diamond coating, WS2 micro-textures. The inhibits the through transfer film mechanism, while micro-textures nanocrystalline store WS2, resulting in prolonge...

In this review, the operating principles of nano-impact test technique are described, compared and contrasted to micro- macro-scale impact tests. Impact fatigue mechanisms discussed, behaviour three different industrially relevant coating systems has been investigated in detail. The (i) ultra-thin hard carbon films on silicon, (ii) DLC hardened tool steel (iii) nitrides WC-Co. influence mechani...

This article considers interaction among participation in the Food Stamp Program (FSP), food security status, and the composition of food expenditures. A quadratic almost ideal demand system with a bootstrapping two-step method of estimation is applied to data from the Current Population Survey–Food Security Supplement data and used to estimate the model and account for endogeneity between the ...

Friction stir processing (FSP) was used as a cladding method for the fabrication of a AA2024 clad layer on a AA1050 sheet. Crossover multi pass FSP with 50% overlap was considered as the cladding method. Effects of the number of FSP passes and post heat treatment on the microstructure and properties of clad layers were evaluated. Microstructural evolutions during the FSP and heat treatment were...

Recent advances in the use of plasmonic metamaterials to improve absorption of light in thin-film solar photovoltaic devices has created a demand for a scalable method of patterning large areas with metal nanostructures deposited in an ordered array. This article describes two methods of fabricating ordered 2D nanosphere colloidal films: spin coating and interface coating. The two methods are c...