in this study, ultrafine grained 2024 al alloy based b4c particles reinforced composite was produced by mechanical milling and hot extrusion. mechanical milling was used to synthesize the nanostructured al2024 in attrition mill under argon atmosphere up to 50h. a similar process was used to produce al2024-5%wt. b4c composite powder. to produce trimodal composites, milled powders were combined w...

Ultrafine polydivinylbenzene nanofiber composites are obtained by adding a small amount of Fe 3 O 4 nanoparticles during polymerization. Through ultrasonic disruption and magnetic separation, we can obtain purified ultrafine nanofibers without nanoparticles.

The objectives of this study were to confirm the non-absorbability and the reproducibility of faecal excretion kinetics of orally administered rare earth elements, and to investigate the excretion profiles of rare earth elements and stable isotopic tracers of Fe and Zn to establish the extent to which rare earth element markers duplicate the behaviour of isotopic tracers. Two investigations wer...

Abstract In this work a ternary Al-Fe-SiC metal matrix composites were reinforced using Zr particles through powder metallurgy process. The Al and the reinforcements mixed in high energy ball mill at speed of 250 rpm over period 5 h so as to develop homogenously dispersed composite material. powders are then pressed 500 MPa hydraulic press. compressed green compacts sintered °C for 2 allowed co...

Revealing the interactions of sound waves with both SiC particles and internal defects is crucial for facilitating detectability defect features in SiCp/Al by using ultrasonic testing (UT). In present work, we demonstrate feasibility UT flat-bottom holes diameters ranging from 0.2 mm to 2 composites through combination finite element (FE) simulations experiments. Specially, a 2D FE model consis...

Abstract Shape-memory polymer (SMP)-based functional structures may now be produced more efficiently via four-dimensional (4D) printing, benefiting from the recent advances in multi-material three-dimensional printing technologies. Composite material design using 4D has opened new possibilities for customizing shape memory property of smart polymers. This work studies a strategy to harness desi...

In this study, MIL-101(Fe), MIL-101(Fe,Cu), and graphene oxide (GO)/MIL-101(Fe,Cu) were synthesized to compose a novel sorbent. The adsorption properties of these three MOF-based composites compared toward the removal phosphate. Furthermore, influencing factors including time, pH, temperature, initial concentration on capacity phosphate materials as well reusability material discussed. structur...

The zero valent iron doped polypyrrole (Ppy/Fe) was synthesized via chemical oxidative polymerization method in diethylene glycol medium for the first time this study. characterization of Ppy and Ppy/Fe composites realized by using fourier transform infrared spectrometer (FTIR), UV-visible diffuse reflectance (DRS), scanning electron microscope (SEM), elemental dispersion X-ray analysis (EDX), ...

Metallic-glass-reinforced metal matrix composites are a novel class of composite materials, in which particles alloys with an amorphous structure play the role reinforcement. During fabrication these composites, crystalline is contact multicomponent alloy structure. In present work, morphological features reaction products formed upon interaction Fe66Cr10Nb5B19 metallic glass aluminum were stud...