The high energy ball milling technique permits production of composite powders suitable for application in thermal spray processes. Different milling systems are compared concerning their potential for production of composite powder feedstock for spraying processes. Hard phase materials like carbides or oxides are incorporated into various metallic matrices including light weight alloys based o...

The development of modern technology requires a constant increase in reliability and durability products. Widely used the practice domestic foreign engineering coatings from electrolytic chromium for several hundred hours are triggered, they unsatisfactorily working on friction wear at high temperatures. subject study were powder materials based nickel PG-SR3 PG-SR4. work is devoted to formatio...

The paper describes the technology of nickel-alumina composite coatings obtained by low-pressure cold spray (LPCS). content alumina reinforcement was optimized mixing commercial K32, being a mechanical mixture Al2O3 + 50 wt% Ni, with Ni-cladded powders developed in present study. cladded were prepared hydrogen reduction method. Two including Ni-films covering particles developed: 70 Ni (powder ...

In this paper, plate-like NiO nanoparticles were prepared by one-pot solid-state thermal decomposition of nickel (II) Schiff base complex as new precursor. First, the nickel (II) Schiff base precursor was prepared by solid-state grinding using nickel (II) nitrate hexahydrate, Ni(NO3)2∙6H2O, and the Schiff base ligand N,N′-bis-(salicylidene) benzene-1,4-diamine) for 30 min without using any solv...

The nano-crystalline nickel-zinc ferrite was prepared via chemical synthesis. Zinc nitrate, nickel nitrate, iron nitrate hydrate, citric acid and ethylene glycol were used as precursor materials. Crystallization behavior of the precursor was studied by X-ray diffraction (XRD). Nanoparticle phases can change amorphous to spinel ferrite depending on the calcination temperature and crystallite siz...