The 3D printing revolution that has upended modern manufacturing |

3D printing produces very little waste compared to traditional manufacturing methods that use material reduction. Also, the direct forming features of this manufacturing method reduces the amount of equipment needed in the production. Metal powder is used as the raw material in metal 3D-printing. Its properties have a strong relationship with the quality of final products. The main requirements for metal powder 3D-printing are chemical composition and particle shape. They also include particle s

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Trend of boron

The average cost of crystalline elemental Boron is US$5/g. Elemental Boron is chiefly used in making boron fibres, which are deposited by chemical vapour deposition on a tungsten core (see below). Boron fibres are used in lightweight composite applications, such as high-strength tapes. This use is a tiny fraction of total boron use. Boron is introduced into semiconductors as boron compounds by ion implantation. The estimated global consumption of Boron (almost entirely as boron compounds) was ab

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Market trend of Boron

What is Boron?Boron is rare in the Universe and solar system due to trace formation in the Big Bang and stars. It is formed in minor amounts in cosmic ray spallation nucleosynthesis and may be found uncombined in cosmic dust and meteoroid materials. In the high oxygen environment of Earth, boron is always found fully oxidized to borate. Boron does not appear on Earth in elemental form. Minimal traces of elemental boron were detected in the Lunar regolith. Although boron is a relatively rare elem

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Dependence of foam concrete properties on technological factors

The dependences of foam concrete properties on various factors, which are divided into four groups, are considered. The dependence of physical and mechanical properties on the properties of materials, conditions for maintaining foam concrete, on the brand and mineralogical composition of cement was revealed. Joint and separate methods of preparing a foam concrete mixture are considered using pressure-chamber turbulence cavitation mixers and modernized standard forced-action mortar mixers. The im

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ATO nanoparticles directly depends of the size and morphology

Generally, transparent conducting oxides (TCOs) like antimony tin oxide and its nanoscale crystals combine transparency quality in the visible range of electromagnetic waves with high electrical conductivity making them considerable materials for several optoelectrochemcial applications. TCOs like antimony tin oxide nanoparticles are produced predominantly and extensively as thin layers and coatings. However, there has been a fast-growing trend and interest in obtaining nanosized crystals as sma

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The MoS2 film on the wear track tended to build up around the highest metallic asperities

The MoS2 film on the wear track on the sandblasted substrate tended to build up around the highest metallic asperities. A typical region on the track. Smooth, compacted M0S2 and flat, metallic asperity plateaus can be seen. As in moist air, the interaction of the sharp, sandblasted asperities (during run-in) with the rider was the most likely reason for the greater initial rider wear when sliding on the sandblasted substrate. After the run-in, the lubrication mechanism was the plastic flow of th

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A known procedure is to render fumed silica hydrophobic

A known procedure is to render fumed silica hydrophobic, grind it in a pinned-disc mill, and then classify it (U.S. 2004/0110077 A1). This known silica is used as an external additive in toner mixtures. Reducing the agglomerate size by dispersing outside a liquid system, in other words, in practice, in the air, or by grinding in the conventional sense, is possible only to a limited extent since in the case of material with a given propensity to agglomerate the comminution is followed immediately

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Dependencies of Quartz Powder Formation on Gelation Time

The effect of the gelation time in the chemical reaction to change the phase from sol to gel on the gel and quartz powder states was investigated by observing the absorbance spectra of the gels and powders at wavenumbers of 500–4000 cm−1. In the case of the gel state, four peaks appeared in the absorbance spectrum, i.e., a broad OH stretching peak at 3000–3700 cm−1 derived from the OH group, an OH bending peak at ~1640 cm−1, an asymmetric Si−O−Si stretching (VasSi−O−Si) peak at ~1075 cm−1, and a

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Chemical Properties of Potassium Silicate Solutions Depending on KOH and SiO2 Concentration

The water glass typically used in industry is synthesized using sodium and potassium silicate. In our experiment, as the selective adsorption of the strongly acidic cation exchange resin is greater when the valence of the ion is larger, the water glass was synthesized via a KOH solution rather than a NaOH solution to use a potassium ion with a relatively large valence in terms of efficiency. When synthesizing fumed silica-based quartz powder, we prepared a potassium silicate solution mixed with

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Copper oxide subnanoparticles of three specific sizes were synthesized within tree-like structures called dendrimers.

X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (IR) were used to analyze the synthesized SNPs' structures, and the results were supported by density functional theory (DFT) calculations. The XPS analysis and DFT calculations revealed increasing ionicity of the copper–oxygen (Cu–O) bonds as SNP size decreased. This bond polarization was greater than that seen in bulk Cu–O bonds and the greater polarization was the cause of the enhanced catalytic activity of the CunOx SNPs. Tanab

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Is silica fume environmentally friendly

The partial substitution of silica fume instead of cement has multiple environmental advantages: reducing pollution due to its release in nature, conserving energy and natural resources, decreasing greenhouse gas emissions, and enhancing microbial carbonate precipitation, which leads to more sustainable concrete. Silica fume is one of the most popular pozzolanas, whose addition to concrete mixtures results in lower porosity, permeability, and bleeding because their oxides (SiO2) react with and c

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The unique "three-dimensional dendritic" structure of gaseous silica

In the production process of vapour silica, halosilane is first hydrolyzed and condensed into a single silica Particle. It then gradually grows into a 7-40 nm spherical particle called the "Primary Particle" of silica. The "primary particles" continue to move forward in the direction of the flame in the reactor and collide with each other. Due to the relatively high temperature in the reactor, the particles are still close to a melting state. After the collision, the particles are fused to form

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Polycarboxylate superplasticizer is used primarily in cement concrete to act as a dispersant. It is composed of polymers containing sulfonic acid group (-SO3H) and carboxyl groups (-COOH) or derivatives of them and features high efficacy, environmental protection, and security.

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TR-40 Foam Concrete Blocks Making Machine

Large-scale foam concrete backfilling projects such as highway roads and bridges, backfills of bridge abutments, replacement and heightening above tunnels, large-scale coal mine filling, and road widening soft foundation backfilling.

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Tricetylmonium chioride CAS 52467-63-7

The hair will be moderately plump and soft after using the shampoo. Tricetylmonium Chloride CAS No. 52467-63-7 After use, it can be used in shampoos, hair care products and other products that give hair moderate plumpness and softness. The suggested dosage is 0.5-1.5%. To dissolve it, heat the 6501 solution to about 60°C. It is a global trusted brand Tricetylmonium chioride CAS 52467-63-7 . Send an inquiry for the latest. Prices of Tricetylmonium chioride CAS 52467-63-7 You can buy

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