The Effect of Vibration Frequency on the Physical and Mechanical Properties of the Material and the Phase Structure of the Pump Part [PDF]
Archives of Metallurgy and MaterialsThe article solves the scientific and technical problem of studying the effect of vibration loads on the phase structure of the material and the durability of a centrifugal pump. It was found that the natural frequencies of the impeller (>100 Hz) are 75%
O.V. Ivanova +4 more
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Causal structure and degenerate phase boundaries [PDF]
, 1999 Timelike and null hypersurfaces in the degenerate space-times in the Ashtekar theory are defined in the light of the degenerate causal structure proposed by Matschull. Using the new definition of null hypersufaces, the conjecture that the "phase boundary"
A. Ashtekar +14 more
core +3 more sources
Phase structure and thermal properties of bismaleimide/polyethersulfone multi-phase resin system
Journal of Aeronautical Materials, 2019 The effect of micro phase morphology of bismaleimide (BMI)/polyethersulfone (PES) multi-phase system on the thermal properties was studied by SEM, DMA and TGA.
DONG Huimin +6 more
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Phase Morphology and Chemorheology during Curing of Polyethersulfone/Bismaleimide Multi-phase System
Journal of Aeronautical Materials, 2018 Curing characteristic of bismaleimide (BMI)/polyethersulfone (PES) multi-phase systems was studied by differential scanning calorimetry (DSC) using the non-isothermal method under different heating rates.
DONG Huimin +6 more
doaj +1 more source
Phase Structure and Magnetic Properties of Intermetallic Cu-Ni Alloy Nanopowders Synthesized by the Electrical Explosion of Wire [PDF]
Archives of Metallurgy and Materials, 2019 Cu-Ni composite nanoparticles were successfully synthesized by electrical explosion of wire (EEW) method. Cu-Ni alloy and twisted wires with various Ni contents were used as the feeding material for a 3 kV charging voltage EEW machine in an ethanol ...
Minh Thuyet-Nguyen, Jin-Chun Kim
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Chaos Near Structural Phase Transition
Zeitschrift für Naturforschung A, 1990 Abstract An experimental model of a Duffing oscillator is presented. It consists of a linear inductance, a resistance and a ferroelectric nonlinear capacitance. A computer controlled measuring system recorded quantitatively the phase portrait of this series-resonance circuit.
H. Beige +4 more
openaire +1 more source
QCD Phase Structure Under Rotation [PDF]
, 2021 We give an introduction to the phase structure of QCD matter under rotation based on effective four-fermion models. The effects of the magnetic field on the rotating QCD matter are also explored. Recent developments along these directions are overviewed, with special emphasis on the chiral phase transition.
Chen, Hao-Lei +2 more
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Finding the structure of phosphorus in the phase IV [PDF]
, 2005 We have explored the unknown structure of the phosphorus in the phase IV (P-IV phase) based on the first-principles calculations using the metadynamics simulation method.
Ishikawa Takahiro +7 more
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Laboratory Evaluation of Rejuvenating Agent on Reclaimed SBS Modified Asphalt Pavement
Applied Sciences, 2017 To evaluate the effect of rejuvenating agent on reclaimed SBS (styrene-butadiene-styrene) modified asphalt pavement (RSMAP) material, different tests of asphalt and mixtures were conducted.
Jie Wang +4 more
doaj +1 more source
Impact of Phase Structure on Piezoelectric Properties of Textured Lead-Free Ceramics
Crystals, 2020 The impact of phase structure on piezoelectric performances of textured Na0.5Bi0.5TiO3 (NBT) based lead-free ceramics was studied, including 0.88NBT-0.08K0.5Bi0.5TiO3-0.04BaTiO3 (88NBT) with morphotropic phase boundary (MPB) composition and 0.90NBT-0 ...
Xiaoyi Gao +6 more
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