Jong Hak Lee, N Duane Loh, Zhen Yuan Yeo, Yong Kang Ong, Deepan Balakrishnan, Carlos Maria Alava Limpo, Abhik Datta, Cagdas Cetin, Shoucong Ning, Clarissa Wong, Jian Shi, Fuchen Hou, Junhao Lin, Tadahiro Minamikawa, Tomonori Ito, Hiroyuki Kamisuki, Stephen Pennycook, Paul Matsudaira, Barbaros Özyilmaz
We report a new nanoporous amorphous carbon (NAC) structure that achieves both ultrahigh strength and high electrical conductivity, which are usually incompatible in porous materials. By using modified spark plasma sintering, we create three amorphous carbon phases with different atomic bonding configurations. The composite consists of an amorphous sp2-carbon matrix mixed with amorphous sp3-carbon and amorphous graphitic motif. NAC structure has isotropic electrical conductivity of up to 12,000 S/m, a Young's modulus of up to ∼5 GPa, and Vickers hardness of over 900 MPa...
April 26, 2024: Advanced Materials