Gagan Kukreja’s Post

Purple fluorite is a very valuable mineral. It is not only used for viewing and collection, but also widely used in industry. In the field of optics, due to its very low dispersion, camera lenses made of it have less chromatic aberration. It also has medicinal value in the medical field. Purple fluorite resources are very rare, and it is very important to improve its recovery rate. Artificial intelligence photoelectric sorting equipment can effectively remove impurities and select high-grade fluorite concentrate.#fluorite #optical #sensorbasedsorting #sortingmachine #mininginnovation #chemical #mineralprocessing #sortingsolution #mineplanning #miningengineering

Core–Shell Inorganic/Organic #Composites Composed of #Polypyrrole Nanoglobules or #Nanotubes Deposited on MnZn #Ferrite #Microparticles: Electrical and Magnetic Properties by Marek Jurča et al. J. Compos. Sci. 2024, 8(9), 373; https://lnkd.in/dps7YdD9 Abstract Core–shell inorganic/organic composites have often been applied as fillers in electromagnetic interference shielding. Those composed of conducting polymers and ferrites are of particular interests with respect to their electrical and magnetic properties. Pyrrole was oxidized in aqueous medium in the presence of manganese-zinc ferrite microparticles with ammonium peroxydisulfate or iron(III) chloride to yield polypyrrole-coated, core–shell microstructures. The effect of methyl orange dye on the conversion of globular polypyrrole to nanotubes has been demonstrated by electron microscopy when iron(III) chloride was used as an oxidant. The formation of polypyrrole was proved by FTIR spectroscopy. The completeness of ferrite coating was confirmed by Raman spectroscopy. The resistivity of composite powders was determined by four-point van der Pauw method as a function of pressure applied up to 10 MPa. The conductivity of composite powders was determined by a polypyrrole matrix and only moderately decreased with increasing content of ferrite. The highest conductivity of composites, 13–25 S cm−1, was achieved after the deposition of polypyrrole nanotubes. Magnetic properties of composites have not been affected by the polypyrrole moiety, and the magnetization of composites was proportional to the ferrite content. Keywords: conducting #polymer; #conductivity; #resistivity; #ferrite #microparticles; hybrid #composite; globular #polypyrrole; polypyrrole #nanotubes; magnetic properties

#MOFs 🧪🔬The main characteristic of surfactants is their amphiphilic structure consisting of a long hydrocarbon chain and a hydrophilic functional group (ionic or nonionic). Because of this structure, surfactants are often used as structure directing agents or capping agents for the preparation of materials, inducing many interesting effects such as formation of high-index facets, transformation of crystal shape, affecting the crystal size . The amphiphilic properties of the surfactants also induce the ability to self-assemble in the solution and form micellar aggregates, allowing them to provide a soft template for morphology-defined nanocrystals (structure directing ability). On the other hand, surfactants can selectively adsorb on specific crystal surfaces via diverse interactions, such as dipole−dipole, van der Waals forces, etc. Thereby, surfactants can control the crystal growth, facilitate the formation of different morphologies, prevent the aggregation of crystals to larger and intergrown ones during synthesis and storage, and promote the formation of the uniform structure . #metal_organic_framework #van_der_waals_forces #sorfactant #dipole_dipole #nanocrystal #surface_morphology

From the chemical structure point of view, ionic porous materials contain non-polar, polar and Ion exchange multiple functional structural units, which can identify neutral or charged target guest molecules through multiple interaction modes such as reversed phase, polarity and electrostatic interaction, and have great potential in the application field of mixed-mode solid phase extraction adsorbents. P7 https://lnkd.in/gnTGmJ4H

Strontium aluminate is a common phosphorescent material due to its ability to emit a long-lasting and bright glow after being exposed to light Here it is combined with resin epoxy to make a ring 📹 secret.wood #metallurgicalengineering #metallurgy #materialscience #mechanicalengineering #materialsengineering

To combine or not to combine….That is the question. We all know that cookies can’t exist without cream, but pickles with peanut butter??? 🤢🤢🤢🤮🤮🤮 Well, that topic is left for another day. But the perfect combination is the latest ARL X’TRA Companion with Thermo Fisher's ARL #WDXRF product line, the OPTIM’X and PERFORM’X Spectrometers. ➡️ X-ray Fluorescence (#XRF) is used for chemical characterization (#elementalanalysis) of solids or liquids, crystalline or amorphous and mostly inorganic ➡️ X-ray Diffraction (#XRD) is used for structural characterization (phase analysis) in inorganic or organic crystalline materials ➡️ One sample prep = 2 Analyses (no need to prepare 2 separate samples because the Sample Holder fits perfectly across the ARL product line) This perfect combination of both techniques can provide a more complete analysis of your material! 🥳👏🎉 Video made by Glenn Williams and Thanh Nguyen #CAD #spectroscopy #elementalanalysis #cement #plastics #pharmaceuticalindustry #metals #mining @thermofisherscientific

Chemical short-range ordering accompanies shear band initiation in CrCoNi medium entropy alloy https://lnkd.in/gjWNXX3H

Sulfide solid electrolytes are usually divided into glassy, glass-ceramic and crystalline states according to their crystal structure. Among them, Li3.25Ge0.25P0.7S4 belongs to thio-LISICON type sulfide solid electrolytes, Li6PS5X (X=Cl, Br, I) belongs to Li-argyrodite type solid electrolytes, and Li10GeP2S12 belongs to LGPS type solid electrolytes. Glassy sulfide solid electrolytes are obtained by mechanical ball milling or high-temperature melting followed by rapid cooling, and there are no obvious peaks under XRD characterization. Glass-ceramic sulfide solid electrolytes are usually obtained after ball milling and then one-step low-temperature sintering. They belong to a metastable phase mixed with glassy and crystalline states, and have a small number of peaks under XRD characterization. Studies have shown that glassy solid electrolytes are mainly composed of four types of tiny crystals: orthothiophosphate, pyrophosphate, metathiophosphate, and hypothiophosphate, and their ion conduction mechanism is not yet very clear. Crystalline sulfide solid electrolytes are usually obtained by high-energy ball milling followed by high-temperature sintering. Some studies also use high-energy ball milling, grinding followed by sintering, and liquid phase methods to prepare them. Crystalline sulfide solid electrolytes are mainly divided into thio-LISICON type, Liargyrodite type, and LGPS type according to their crystal structure. These three types of electrolytes have specific crystal structures and lithium ion transmission channels, and their structural composition and ion migration mechanism are relatively clear. #Solidstatebattery #All #solid #state #battery #Fullsolidstatebattery

💧 Compared to traditional PVDF membranes, the CONSEPTEC ceramic membrane features a narrow distribution of pore sizes that ensures high precision. #watertreatment #desalination #membrane #waterreuse

Technologies like this have massive implications for geometallurgy. It is tough to find an orebody. It is equally tough to tailor a method that optimizes recovery, so, we are not loosing ores which is not only sub-optimal in corporate finance but it is also not very good environmental practice.