In this research, the nickel oxide was dissolved in cryolite at temperatures of 880, 940 and 1000°C. In order to reduce the nickel oxide, aluminum was added to the salt. Simultaneously the nickel oxide was reduced and Al3Ni2 intermetallic compound was formed. In the duration intervals of 2.5-40 minutes samples of the salt and metallic phases were taken. The variation of the nickel content in me...

This work investigates plastic deformation around non-metallic inclusions in rolling contact fatigue applications. Subsurface stresses from Hertzian theory are applied form of far-field loading on an elasto-plastic micro-mechanical model isolated inclusion. Initial and cyclic micro-scale plasticity quantified, assuming linear kinematic hardening for the steel matrix elastic or perfectly behavio...

Hydroxyapatite coatings have been used on metallic substrates in a variety of applications, including modifying the surface of human implants, bone osseointegration and biological fixation. In this paper, the effects of various kinds of metallic substrate on clinical and pathological results of in vivo tests are presented. Four kinds of endodontic implants i.e, stainless steel, cobalt base all...

Hydroxyapatite coatings have been used on metallic substrates in a variety of applications, including modifying the surface of human implants, bone osseointegration and biological fixation. In this paper, the effects of various kinds of metallic substrate on clinical and pathological results of in vivo tests are presented. Four kinds of endodontic implants i.e, stainless steel, cobalt base all...

conclusions anesthetic and surgical management was difficult due to the inability to position in supine and rapidly progressing hemorrhagic shock. surgical management for extraction of this iron bar and intensive monitoring and resuscitation resulted in an uneventful successful outcome. introduction penetrating thoracoabdominal injuries are potentially life threatening due to the associated hem...

Metallic glasses are kinetically metastable materials. Metallic glass is defined as “A liquid, which has been cooled into a state of rigidity without crystallizing”. Properties of metallic glasses differ form non metallic glasses. Ordinary glasses are made up of silica while metallic glasses are made of alloy metals. Ordinary glasses are transparent whereas metallic glasses are opaque. In ordin...

objectives: this paper reviews the current literature on acquired brain injury (abi) with a focus on abi burden, importance of community integration, and community integration definitions suggested by the literature. methods: literature review results: acquired brain injury (abi) is referred to a diverse range of disabilities resulted of injury in different parts of the brain. people with abi a...

this study presents the influence of hydroxypropyl-β-cyclodextrin (hpbcd) on the aqueous solubility of acyl esters of cyproterone. first, a number of esters of cyproterone were synthesized. then the phase solubility analysis of the compounds in the presence of hpbcd was investigated in phosphate buffer solution at a ph of 7.4. to gain a better understanding of the complexation mechanism, the sy...