Boron: Another Form

@article{Wentorf1965BoronAF,
  title={Boron: Another Form},
  author={Robert H. Wentorf},
  journal={Science},
  year={1965},
  volume={147},
  pages={49 - 50}
}
A hitherto undescribed form of boron can be prepared by subjecting ordinary forms of boron to pressures exceeding about 100 kilobars and temperatures between about 1500� to 2000�C. The new form has a density of about 2.52 g/cm3 and yields a characteristic DeBye-Scherrer pattern. No large crystals have been prepared. 
Synthesis of an orthorhombic high pressure boron phase
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TLDR
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Borides and boranes
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Comparative review of theoretical and experimental equations of state of orthorhombic boron γ-B28
AbsractVarious theoretical and experimental 300 K equations of state of γ-B28, a new ultrahard high pressure orthorhombic phase of boron, have been reviewed. Throughout analyses and critical
Boron Modifications Produced in an Induction-Coupled Argon Plasma
TLDR
Most of the small particles of microcrystalline β-rhombohedral boron that quickly transit an argon plasma maintained within a radio-frequency induction-coupled torch emerge as better crystallized spheroids of the same crystalline form and nearly the same size as the starting material.
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TLDR
At pressures above about 125 kbar and temperatures in the 3000°K range it is found that graphite spontaneously collapses completely to polycrystalline diamond which may be retrieved quantitatively.
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Nach einem Uberblick uber die bisher bekannten Bor-Modifikationen werden Versuche beschrieben, durch gemeinsames Zersetzen von BBr3 BeBr2 am gluhenden Tantaldraht Borkristalle mit eingelagertem
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