1. 1 D. He , Y. Zhao , L. Daemen , J. Qian , T. D. Shen , and T. W. Zerda , “Boron Suboxide: As Hard as Cubic Boron Nitride,” Appl. Phys. Lett., 81 [4] 643-5 (2002).
2. 2 P. F. McMillan , “Pressing On: The Legacy of Percy W. Bridgman,” Nat. Mater., 4, 715-8 (2005).
3. 3 D. Nieto-Sanz , P. Loubeyre , W. Crichton , and M. Mezouar , “X-Ray Study of the Synthesis of Boron Oxides at High Pressure: Phase Diagram and Equation of State,” Phys. Rev. B, 70 [21] 214108-16 (2004).
4. 4 H. Werheit , A. Leithe-Jasper , T. Tanaka , H. W. Rotter , and K. A. Schwetz , “Some Properties of Single-Crystal Boron Carbide,” J. Solid State Chem., 177, 575-9 (2004).
5. 5 H. Hubert , L. A. J. Garvie , B. Devouard , P. R. Buseck , W. T. Petuskey , and P. F. McMillan , “High-Pressure, High-Temperature Synthesis, and Characterization of Boron Suboxide (B6O),” Chem. Mater., 10, 1530-7 (1998).