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Purpose: Wood infiltrated with nano-silica hydrosol forms a “weak”, irregular composite of components bound with hydrogen bonds only. The purpose of this study was to investigate the influence of low-energy ions bombardment on the structure and properties of the surface of this composite. The aim of these investigations was to produce a shallow “buried” layer of a dense wood-ceramic composite on a...
Purpose: The plasma assisted surface treatment processes may be conducted at lowered temperatures thanks to shallow ion implantation influencing the driving force of diffusion. The low-temperature d.c. glow discharge assisted nitriding (LTN) method allows the process to be applied to steel grades irrespective of their tempering temperature but does not promote the formation of thick nitrided layers...
Badania azotowania jarzeniowego stali HSS18 w temperaturze 350°C wykazały osobliwości budowy chemicznej tak azotowanej warstwy: obecność nierównowagowej fazy Fe3N i zwiększonej koncentracji N przy powierzchni. Wyniki zinterpretowano jako rezultat płytkiej implantacji jonów. Noże azotowane w temperaturze 350°C charakteryzowały się wysoką twardością powierzchniową i ciągliwością lepszą niż azotowane...
Low alloy steel (LAS) is a commonly used material for producing knives in wood and pulp industry. In some application specific advantageous features of LAS make it impossible to replace it by other harder and more resistant to abrasion materials such as: HSS, carbide or stellites. The aim of this study was to improve the resistance to wear of knives' edges made of LAS covered with composite coatings...
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