Nanotwinned diamond with unprecedented hardness and stability

Ultrahard nanotwinned cubic boron nitride

(2013) Yongjun Tian et al.   NATURE

Tian et al. reply

(2013) Yongjun Tian et al.   NATURE

Creation of Nanostuctures by Extreme Conditions: High-Pressure Synthesis of Ultrahard Nanocrystalline Cubic Boron Nitride

(2012) Vladimir L. Solozhenko et al.   ADVANCED MATERIALS

Microscopic theory of hardness and design of novel superhard crystals

(2012) Yongjun Tian et al.   INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS

The gram-scale synthesis of carbon onions

(2011) Mohammad Choucair et al.   CARBON

Distinctive mechanical properties of nano-polycrystalline diamond synthesized by direct conversion sintering under HPHT

(2011) H. Sumiya et al.   DIAMOND AND RELATED MATERIALS

Dislocation nucleation governed softening and maximum strength in nano-twinned metals

(2010) Xiaoyan Li et al.   NATURE

Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale

(2009) K. Lu et al.   SCIENCE

Revealing the Maximum Strength in Nanotwinned Copper

(2009) L. Lu et al.   SCIENCE

Size-Dependent Temperature−Pressure Phase Diagram of Carbon

(2008) C. C. Yang et al.   Journal of Physical Chemistry C