Sapphire is a high-purity and high-density, single-crystalline form of aluminum oxide that may contain chromia, titania, yttria, or other dopants. Sapphire is usually transparent or translucent.

and the recycled aluminum becomes part of a cycle that can occur over and over again without loss of the aluminum’s properties. Sodium aluminate forms through the chemical reaction of aluminum oxide ...

the electrically insulating nature of aluminium oxide, and the general brittleness of aluminium when twisted. Yet while copper is superior to aluminium in terms of electrical conductivity and ease ...

An international team of scientists have combined cyclic-olefin copolymers with a powder of aluminum oxide to create a ...

Aluminium is unusual because it is a reactive metal that does not react with water. Its surface naturally forms a very thin layer of aluminium oxide that keeps water away from the metal below.

来源：国家自然科学基金委员会2024年不端行为案件处理结果通报（第二批次）近期，经国家自然科学基金委员会监督委员会调查审议，由国家自然科学基金委员会委务会议审定，国家自然科学基金委员会对相关科研不端案件涉事主体进行了处理。现根据有关规定，将有关案情及处理结果予以通报。　　（一）　　国家自然科学基金委员会 ...

Regular old aluminum is an abundant metal with all the expected properties of metals — electrically and thermally conductive, ductile, malleable, and lustrous. You can melt it and cast it into ...

(aq) \rightarrow \mathbf{4}Al\, (s) + \mathbf{3}O_{2}\, (g)\) The equation shows you that for every two moles of aluminium oxide oxidised, four moles of aluminium metal are obtained along with ...

Description: When it comes to improving your digital polishing productivity, our new polishing slurry formulations last longer, remove more substrate in less time and yield better surface clarity than ...

The scientific name for alum became aluminum oxide. It took almost two decades ... With pure samples, scientists were able to ...