We report a systematic study of room-temperature ferromagnetism (RTFM) in pristine MgO thin films in their amorphous and nano-crystalline states. The as deposited dc-sputtered films of pristine MgO on Si substrates using a metallic Mg target in an O₂ containing working gas atmosphere of (N₂ + O₂) are found to be X-ray amorphous. All these films obtained with oxygen partial pressure (PO₂) ~10% t...

In this study, the effect of variety of Nano- additives doping on the hydration resistance of the MgO-CaO system was investigated. Samples were prepared from calcined dolomite and magnesite. Nano-additives that contained cations with various valences (trivalent and tetravalent) used as  a dopant. The bulk density, apparent porosity and hydration resitance were studied and evaluated. Also, phase...

In this study, olive oil residue (OR) biomass was pyrolyzed in the presence of bulk MgO (B-MgO), nano-MgO (N-MgO), ZnO (B-ZnO)), and nano-ZnO (N- ZnO) metal oxides at different temperatures (400, 600, 800 ºC). Significant results were obtained terms synthesis gas formation CO2 reduction. The efficiency distribution products as a result oxide-based pyrolysis process effects examined detail. Nano...

nowadays, magnesia carbon refractories are very important for the iron and steel industries. it is dueto their unique properties, such as low wet ability with melt iron and steel. therefore, it is importantto extend the life of the refractory. in this research, the effect of calcined alumina and nano carbon onmechanical strength and corrosion resistance against slag in magnesia carbon refractor...

Abstract Nano-MgO was prepared by microwave irradiated ionic liquid method. The influence of the volume ([BMIM]Ac), radiation power and temperature on morphology nano-MgO were investigated. characterized TG, XRD, EDS SEM. results showed that this method has a short rod-like shape, uniform particle size, good dispersibility. average diameter rod-shaped 25 nm, length 67 specific surface area 48.2...

Nowadays, SiC is one of the refractory materials which is used widespread because of its unique properties like structural stability in high temperatures. SiC nano whiskers are important in reinforcement of different kinds of composites like ceramic base materials, thanks to their outstanding mechanical, thermal, and chemical properties like low expansion coefficient, high thermal resistant, hi...

Extremely high capacity hard carbon for Na-ion battery, delivering 478 mAh g−1, is successfully synthesized by heating a freeze-dried mixture of magnesium gluconate and glucose MgO-template technique. Influences synthetic conditions nano-structures on electrochemical Na storage properties in the are systematically studied to maximize reversible capacity. Nano-sized MgO particles formed matrix p...

In order to explore the modification effect of carbonization time on nano-MgO-modified cement soil, unconfined compressive strength tests soil with times 0 h, 6 1 d, 2 d and 4 were carried out. A method for normalizing stress–strain curve was proposed, influence nano-MgO content investigated from three aspects strength, peak strain energy dissipation. The test results show following: (1) modifi...

Silica exists in Rice husk, an agriculture waste, as a naturally occurring phase. In first step, acidic pre-treatment and calcination of the rice husk were performed to obtain nano-silica, in which various sizes of the nano-silica, totally with sizes under 80 nm, were achieved. Second, to reduce nano-silica to elemental Si and subsequently formation of the composite, Mg used as the reducing age...

Regeneration of complex orthopedic tissues (such as ligament, bone, and the tendon-to-bone insertion site) is problematic due to a lack of suitable biomaterials with the appropriate chemical and mechanical properties to elicit the formation of tissues with similar structure, organization, and functionality to natural tissues. Additionally, a non-trivial fraction of implanted biomaterials acquir...