Overview of silicon nitride Si3N4 powder
Silicon nitride is known as Si3N4 powder, it's a super-hard substance, which has lubricity itself, and is resistant to wear and oxidation at high temperatures.…
Silicon nitride is known as Si3N4 powder, it's a super-hard substance, which has lubricity itself, and is resistant to wear and oxidation at high temperatures.…
U.S. natural gas futures rose about 5 percent to a near nine-week high as global energy prices surged on concerns over a pricing plan for energy exports, keeping U.S. LNG export demand near record highs. U.S. natural gas prices have risen despite for…
In this article, the chemical foaming agents of ADC will be talked about.…
The early-strength agent can greatly change the final setting time while ensuring the quality of concrete is reduced. It is changed to demoulding as soon as possible. The sleeve accelerates the turnover of the formwork, saves the amount of formwork,…
Graphite has good conductivity, high crystallinity, and a well-layered structure. It is very suitable for repeated intercalation and deintercalation of lithium ions.…
Weaker overseas demand for durable consumer goods combined with a rebound of the epidemic at home kept China's export growth on a downward trend. The month-on-month growth rate in March was significantly lower than the seasonal trend after excluding…
The properties of the cellular concrete are strongly influenced by the type of foaming agent used.…
According to the United Nations website, in the past week, countries reported an 8% increase in new crown cases to the WHO, with more than 11 million positive tests. Tedros noted that although some countries hav…