Investigation of the process of ferrite formation in the Li2CO3–ZnO–Fe2O3 system under high-energy actions

Study of the Radio-Wave Absorbing Properties of a Lithium-Zinc Ferrite Based Composite

“…In [14] it was shown that to synthesize lithium-zinc ferrite Li 0.4 Fe 2.4 Zn 0.2 O 4 with homogeneous phase composition, those fabrication regimes are optimal that include mechanical activation of the mixture of starting reagents for 60 min, compaction of the powders in the form of pellets under a pressure of 200 MPa followed by radiationthermal synthesis in an electron beam at a temperature of 600°С for 60 min. The ferrite ceramic was baked in air in a resistance furnace at a temperature of 1050°С for 2 h. Mechanical activation of the mixture of starting reagents was carried out at room temperature in an AGO-2S planetary mill [15] using steel grinding bowls and balls.…”

“…It was shown in [11][12][13] that the most effective means of enhancing the homogeneity and intensifying the solidphase interactions is radiation-thermal synthesis of mechanically activated mixtures followed by baking of the ferrite materials in an accelerated electron beam. It was found that this heating method makes it possible not only to shorten the synthesis time and to lower the synthesis temperature substantially, but also to improve the characteristics of lithium and lithium-substituted ferrites.…”

Capacitance Control on the Wire Production Line

“…The wire capacitance depends on the characteristics of in-process insulation applying; therefore, the capacitance control is to be carried out during extrusion [1,2,[6][7][8]10]. The only possible embodiment of the measuring transducer in this case is the use of the tubular electrode [11] immersed in cooling water together with the test wire.…”

Mobile Complex For Rapid Diagnosis of the Technological System Elements

“…The vibration that occurs in the production equipment, leads not only to a positive effect, useful for various technological tasks [1][2][3][4][5][6][7][8], but also negative effect. In terms of metal working vibration can have a significant effect on the accuracy of the equipment operation of (accuracy and surface roughness), the reliability of its operation, the protection level of installed in close proximity the precision manufacturing equipment, the safety of the personnel on the consequences of possible emergency situations.…”