Today'' s concrete superplasticizers are essentially prepared by compounding numerous products such as polycarboxylate water-reducing mother liquor and also polycarboxylate slump-preserving mother liquor plus retarders, air-entraining agents, as well…
What is zinc stearate emulsion?Zinc stearate is a fine white light powder, insoluble in water, ethanol, and ether, and also soluble in hot ethanol, turpentine, benzene, and various other organic solvents and also acids. Zinc stearate is heated and di…
Superplasticizer admixture for concrete is one of the most used concrete admixtures, which can increase the plasticity of concrete and change the strength of concrete. But do you know how it can change the strength of concrete?…
US President recently decided to invoke a Cold War-era defense law to encourage domestic graphene powder. While graphene-based materials have potential as adsorption materials, their performance may be hampered by aggregation and lack of…
Commodity prices are on track for their biggest rally in more than a century, while fixed-income assets have seen their longest run of outflows as the war in Ukraine adds to inflationary pressures in the global economy emerging from the coronavirus l…
GH4049 is a nickel-based superalloy, which is an age-hardening alloy. The corresponding grade is GH49. Its nickel content is about 70%.…
In fact, in essence, nickel-based alloys are also a kind of stainless steel. They are just special stainless steels. The chemical composition is also different from ordinary stainless steel.…
Using concrete additives is the most effective, economical, and simple technical way to reduce the cement dosage, improve the utilization rate of industrial waste residue, and realize the high durability and performance improvement of concrete.…
The effects of boron and silicon elements: significantly reduce the melting point of the alloy, expand the temperature range of the solid-liquid line, and form a low-melting eutectic…
Nickel-based superalloys are the most widely used. The main reason is that, one is that more alloying elements can be dissolved in the nickel-based alloy, and it can maintain good structural stability…
The creep rupture strength can be a good indication that the creep rupture life/γ-initial fraction diagram of each alloy series is different, but each series may have a maximum value or exceed 75% (volume) in the vicinity.…
Nickel-based alloys refer to a class of alloys that have high strength and a certain degree of oxidation and corrosion resistance at a high temperature of 650 to 1000 ℃.…