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Home » Technologies & Materials » Materials, Additives, Mixes » Almatis Expands its Calcined Aluminas into a Higher Purity Range

Almatis Expands its Calcined Aluminas into a Higher Purity Range

In this article, the authors discuss the need for improved purity levels of specialty alumina for emerging
and developing technical applications. They discuss the impact of the overall purity level of alumina on
its properties and how specific impurities or dopants impact specific properties more severe than other
impurities or dopants. The dielectric loss is given as an example property that is significantly influenced by
specific impurities. The awareness that specific impurities and certain combinations thereof have a larger
impact on the properties of alumina than the overall purity opens up the possibility for a more economical
solution to selectively avoid or remove impurities in alumina that are harmful for the targeted properties,
depending on the application.


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