Effectiveness of amorphous silica encapsulation technology on welding fume particles and its impact on mechanical properties of welds

Wang, Jun; Wu, Chang Yu; Franke, G. L.

doi:10.1016/j.matdes.2013.08.002

Cited by 3 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fe 3 O 4 nanoparticles with a siliceous shell were used for removing heavy metal ions from water [ 34 , 35 ]. A gas-phase silica encapsulation technology was applied to reduce the toxicity of fumes generated by flame [ 36 ] or welding [ 37 ]. Ultrafine diamonds, used for ultra-precision grinding, were coated with silica to improve their oxidation resistance [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of WS2@SiO2 and WS2@PANI Core-Shell Nanocomposites

Sade

Lellouche

2018

Nanomaterials

View full text Add to dashboard Cite

Two tungsten disulfide (WS2)-based core-shell nanocomposites were fabricated using readily available reagents and simple procedures. The surface was pre-treated with a surfactant couple in a layer-by-layer approach, enabling good dispersion of the WS2 nanostructures in aqueous media and providing a template for the polymerization of a silica (SiO2) shell. After a Stöber-like reaction, a conformal silica coating was achieved. Inspired by the resulting nanocomposite, a second one was prepared by reacting the surfactant-modified WS2 nanostructures with aniline and an oxidizing agent in an aqueous medium. Here too, a conformal coating of polyaniline (PANI) was obtained, giving a WS2@PANI nanocomposite. Both nanocomposites were analyzed by electron microscopy, energy dispersive X-ray spectroscopy (EDS) and FTIR, verifying the core-shell structure and the character of shells. The silica shell was amorphous and mesoporous and the surface area of the composite increases with shell thickness. Polyaniline shells slightly differ in their morphologies dependent on the acid used in the polymerization process and are amorphous like the silica shell. Electron paramagnetic resonance (EPR) spectroscopy of the WS2@PANI nanocomposite showed variation between bulk PANI and the PANI shell. These two nanocomposites have great potential to expand the use of transition metals dichalcogenides (TMDCs) for new applications in different fields.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of WS2@SiO2 and WS2@PANI Core-Shell Nanocomposites

Sade

Lellouche

2018

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Due to their unique structures and properties, amorphous materials have attracted the extensive attention of researchers [3][4][5]. At present, with science and technology changing with each passing day, the new material industries have been greatly developed.…”

Section: Introductionmentioning

confidence: 99%

The Evolution of Microstructures and the Properties of Bulk Metallic Glass with Consubstantial Composition Laser Welding

Tao

Zhang

et al. 2016

Metals

View full text Add to dashboard Cite

A Zr 55 Cu 30 Ni 5 Al 10 plate-like bulk metallic glass (BMG) was prepared using copper mold suction casting. Additionally, alloy powders with the same nominal composition were synthesized. The alloy powders were welded or melted to the cleaned surface of the BMG with a laser beam acceleration voltage of 60 kV, a beam current range from 60 to 100 mA, a welding speed of 60 mm/s, as well as an impulse width of 3.0 ms. The effect of consubstantial composition welding on the microstructures and properties was investigated. The molten and subsequently solidified metallic mixtures remain an amorphous structure, but the enthalpy of the welded or melted position varies due to the combination of the micro-structural relaxation and nano-crystals precipitated during the energy inputs. The surface layers of the BMG can be significantly intensified after welding processes; however, the heat-affected zones (HAZs) exhibit a slight degradation in mechanical properties with respect to the BMG matrix. This study has important reference value for specialists working on the promotion of applications of BMGs.

show abstract

Mimicking the human respiratory system: Online in vitro cell exposure for toxicity assessment of welding fume aerosol

Ward

Tilly

Mazhar

et al. 2020

Journal of Hazardous Materials

View full text Add to dashboard Cite

Effectiveness of amorphous silica encapsulation technology on welding fume particles and its impact on mechanical properties of welds

Cited by 3 publications

References 39 publications

Preparation and Characterization of WS2@SiO2 and WS2@PANI Core-Shell Nanocomposites

Preparation and Characterization of WS2@SiO2 and WS2@PANI Core-Shell Nanocomposites

The Evolution of Microstructures and the Properties of Bulk Metallic Glass with Consubstantial Composition Laser Welding

Mimicking the human respiratory system: Online in vitro cell exposure for toxicity assessment of welding fume aerosol

Contact Info

Product

Resources

About