hyperdiamond

plural hyperdiamonds · alternative hyper-diamond

1. Synonym of 24-cell.

   Synonyms: 24-cell

2. A material that has superior durability and density to regular diamonds; an aggregated diamond nanorod.

   Technically, hyperdiamond (diamond nanorod, DNR) is regular diamond, it's just been arranged into an optimal lattice.

   2019 February 26, starcraftre, “How strong is hyperdiamond compared to regular diamonds?”, in reddit.com

   3 more examples

   Fighting his fatigue — it was a black slick lapping at his consciousness — Vargovic said: "I understand perfectly well. I have the samples of hyperdiamond, in my hands..."

   1998, Gardner R. Dozois, The Year's Best Science Fiction: Fifteenth Annual Collection, St. Martin's Press, →ISBN, page 221

   In 2005 scientists at Bayreuth University in Germany created a new material by compressing pure carbon under extreme heat. It’s called hyperdiamond or aggregated diamond nanorods (ADNR) and, although it’s incredibly hard, it looks rather like asphalt or a glittery black pudding.

   2010, Francis Charles Laird, The Second Book of General Ignorance, Faber, →ISBN, pages 7–8

   There are harder substances than diamond - In 2005, physicists Natalia Dubrovinskaia and colleagues compressed carbon fullerene molecules and heating them at the same time to create a series of interconnected rods called Aggregated Diamond Nanorods (ADNRs or "hyperdiamond"). It's about 11% harder than a diamond.

   2010 September 20, Dazzak, “Why Diamonds”, in reddit.com