Fe/SiC hybrid fibers have been fabricated by electrospinning and subsequent high-temperature (1300 °C) pyrolysis in Ar atmosphere using polycarbosilane (PCS) Fe3O4 precursors. It is found that the introduction of Fe has had a dramatic impact on morphology, crystallization temperature, microwave electromagnetic properties fibers. In addition, particles acted as catalyst sites to facilitate growth SiCO nanowires surface As result, permittivity permeability enhanced effectively, high reflection...

The unique magnetic vortex structure allows ferrimagnetic vortex-domain iron oxide nanorings to possess negligible remanence and large hysteresis loss, which not only promotes colloid stability but also maximizes the specific absorption rate. It overcomes super-paramagnetic limitation a new class of nanoparticle agent be designed for high-performance thermal-based biomedical applications. As service our authors readers, this journal provides supporting information supplied by authors. Such...

A two‐step chemical approach to synthesize high quality Fe 3 O 4 nanodisc is reported. The magnetic hyperthermia properties of the and isotropic nanoparticles are investigated systematically. results suggest that shows much higher specific absorption rate (SAR) than nanoparticles. This attributed parallel alignment with respect alternating current field, which confirmed by good agreement between experimental micromagnetic simulation. It found such could enhance SAR value a factor ≈2 randomly...

Hafnium carbide (HfC) phase, with a high melting point, excellent strength, and electrical conductivity, could be suitable addition to enhance the microwave absorption properties of one-dimensional silicon (SiC) nanomaterials without sacrificing its high-temperature thermal stability. In present work, HfC/SiC hybrid nanofiber mats different HfC loading contents are fabricated by electrospinning pyrolysis. hybrids sizes 5–10 nm embedded in SiC nanofibers. As content increases from 0 6.3 wt %,...

A series of nonstoichiometric zinc ferrite (ZndFe3−dO4) nanoparticles with Zn-dopant concentration d ranging from 0 to 0.5 was synthesized via thermal decomposition route employing oleic acid as surfactant. The dopant controlled by the ratio Zn/Fe precursors. High room temperature saturation magnetization 110 emu g−1 obtained for large Zn particles (more than 100 nm) nominal composition Zn0.468Fe2.532O4. origin extraordinary magnetic property revealed substitution Fe atoms at tetrahedral...

Uniform magnetic nanoparticle-loaded polymer nanospheres with different loading contents of manganese ferrite nanoparticles were successfully synthesized using a flexible emulsion process. The MnFe2O4-loaded displayed an excellent dispersibility in both water and phosphate buffer saline. effect ratio size MnFe2O4 within the on specific absorption rate (SAR) under alternating field was investigated. Our results indicate that large (here 18 nm) low are preferable for high SAR. For smaller...

Fiber alignment is a key factor that determines the physical properties of nanofiber mats. In this work, SiC mats with or without fiber are fabricated via electrospinning and microwave electromagnetic their silicone resin composites (5 wt %) investigated in 2–18 GHz. By comparing composite containing whisker, it found show superior dielectric loss minimal reflection (RL) around −49 dB at 8.6 GHz 4.3 mm thickness, associated broad effective absorption (<−10 dB) bandwidth (EAB) about 7.2 2.8...

A novel type of all-ceramic SiC aerogel was fabricated by freeze casting and carbothermal reduction reaction processes using graphene oxide (GO) doped nanowires suspensions as starting materials. The effect GO addition (0, 1, 2, 4 mg/mL) on the porous morphologies, chemical composition, electromagnetic (EM) performance aerogels were investigated. optimum exhibits effective whole X-band attenuation (>90%) at a fixed thickness 3.3 mm from room temperature to 400 °C. It is ultralight with...

Graphene aerogels have gained considerable attention due to their unique physical properties, but poor mechanical properties and lack of functionality hindered advanced applications. In this study, we propose a blend-spinning-assisted freeze-casting (BSFC) strategy incorporate particle-modified carbon fibers into graphene for strengthening functional enhancement. This method offers great deal freedom in the creation customizable multimaterial, multiscale structural aerogels. For example,...

Organosoluble polyimide/silica hybrid materials were prepared using the sol–gel process. The organosoluble polyimide was based on pyromellitic anhydride (PMDA) and 4,4′-diamino-3,3′-dimethyldiphenylmethane (MMDA). silica particle size in is increased from 100–200 nm for containing 5 wt % to 1–2 µm 20 silica. strength toughness of hybrids are improved simultaneously when content below 10 %. As increased, glass transition temperature (Tg) slightly. thermal stability obviously their...

Path generation is an important factor that affects the quality and efficiency of most laminated manufacturing processes such as SLS, SLA FDM. This paper introduces efficient path algorithm. The principle algorithm its implementation are presented. A comparative study used to analyze effectiveness this method. results comparison on both length processing time between traditional method proposed discussed.

Ni-based metal organic framework (MOF) hollow spheres were successfully synthesized by a hydrothermal method. After carbonization in nitrogen at 600 °C, surface layer made of different Ni architectures is formed. The shape and size the (e.g., needles or pillars) can be adjusted effectively controlling duration reaction, leading to variable anisotropy electromagnetic properties. investigation microwave attenuation performance reveals that paraffin wax composite (50 wt %) Ni-MOF with 8 10 h...

Magnetic hyperthermia is a fast emerging, non-invasive cancer treatment method which used synergistically with the existing therapeutics. We have attempted to address current challenges in clinical magnetic hyperthermia-improved biocompatibility and enhanced heating characteristics, through single combinatorial approach. Both superparamagnetic iron oxide nanoparticles (SPIONs) of size 10 nm ferrimagnetic (FIONs) 30 were synthesized by thermal decomposition for comparison studies. Two...

Ultrathin (∼2 μm) reduced graphene oxide (rGO) film embedded with self-aligned Fe3O4 nanodiscs were successfully fabricated through the filtration-assisted self-assembly method. In as-fabricated hybrid film, thin thickness (26 nm) and high aspect ratio (∼9) readily self-assembled aligned in rGO intersheets under assistance of hydrostatic forces. Compared spherical nanoparticles, introducing into paper could not only offer magnetic permeability loss a broad frequency range at gigahertz level,...

An extremely low frequency alternating magnetic field of 20 Hz was proved to be able remarkably accelerate the drug release from optimized ZIF-90 nanospheres with incorporated Fe₃O₄ nanoparticles acting as actuator.