This weeks Notability subscription announcement sparked a backlash, forcing the makers of the popular note-taking app to do a U-turn on the way they treat existing users. Some existing owners have pointed out that the developer violated App…
The attractive characteristics of nanomaterials in structure, photoelectric and chemical properties have aroused the interest of physicists, materials scientists, and chemists. Since the formation of the concept of nanomaterials in the early…
Artificial graphite, is similar to polycrystals in crystallography. There are many kinds of artificial graphite, and the production process is very different.…
What is silicon nitride?Silicon nitride is a not natural material with the chemical formula Si3N4. Gray, white or grayish white. The loved one molecular weight is 140.28.It is a crucial structural ceramic product with high solidity. It has lubricity ...…
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