Surf Wiki
Save to docs
general/borides

From Surf Wiki (app.surf) — the open knowledge base

Aluminium dodecaboride

soluble in nitric acid (decomposes), soluble in sulfuric acid (decomposes) Orthorhombic (β-form)

Aluminium dodecaboride () is a superhard chemical compound with 17% aluminium content by weight.

It is the hardest boride of the aluminium-boron system, which also includes , , and AlB.

Properties

There are two crystalline forms, α-, and γ-. Both forms are very similar and consist of a framework with three-dimensional networks of and units. The phase β- is now believed to be the ternary boride .

Preparation

The β-form can be prepared by the reaction of boron(III) oxide with sulfur and aluminium, then adding carbon to the mixture.

Uses

The extreme hardness of makes it a favorable component of PCBN inserts, which are mainly used in cutting and grinding to replace diamond or corundum.

Footnotes

References

  1. {{RubberBible92nd
  2. (2005). "Springer Handbook of Condensed Matter and Materials Data". Springer-Verlag.
  3. Rebekoff Reeve, Martin (1991) [https://patents.google.com/patent/EP0130016B1/en Method of producing an aluminium boride]. EP 0130016 B1
  4. (2000). "Crystal chemistry of α-AlB12 and γ-AlB12". Journal of Solid State Chemistry.
  5. (1965). "Phases and twinning in C2Al3B48 (β-AlB12)". Zeitschrift für Kristallographie.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

borides aluminium-compounds
Want to explore this topic further?

Ask Mako anything about Aluminium dodecaboride — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report