Tungsten telluride (WTe2) is a transition group metal chalcogenide compound with a layered structure. In its orthogonal unit cell, the tungsten chain is distributed one-dimensionally along the a-axis direction of the tellurium layer, and it is a non-magne
What is Nickel-Copper?Nickel-Copper (Ni-Cu) alloys exhibit simultaneously high strength and toughness, excellent corrosion resistance, and may show good wear resistance. The Ni-Cu system forms the basis for the Monel alloy family. Monel was discovered by Robert Crooks Stanley who was employed by the International Nickel Company (INCO) in 1901. The new alloy was named in honour of the company president, Ambrose Monell. Ni and Cu exhibit very similar atomic characteristics. They both have face cen
Russian President says if the European Union imposes an oil embargo, Europe will buy energy at the most expensive price and economic activity in Europe will weaken. Rosneft needs to change its business model. Russia will help facilitate settlement an
There are many substances that can produce foam, but not all substances can produce foam can be used as the cement foaming agent. The foaming agent shall have sufficient stability to ensure that the foam will not break during mixing with the mortar and will not adversely affect the setting and hardening process of the cementitious material. At present, cement foaming agents mainly include resin soap foaming agent, aluminum powder foaming agent, vegetable protein foaming agent, petroleum aluminum
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