Nonstoichiometric Boundary Boron Carbide

Plastic temperature drops to new low

High-pressure sintering introduces grain boundary nonstoichiometry, enabling dense boron carbide to deform plastically at lower temperatures via grain boundary sliding while retaining high strength.

Xu, Haiyue · Ji, Wei · Jiang, Jiawei · Liu, Junliang · Wang, Hao · Zhang, Fan · Yu, Ruohan · Tu, Bingtian · Zhang, Jinyong · Zou, Ji · Wang, Weimin · Wu, Jinsong · Fu, Zhengyi

Nature Communications 2023

Advantages

Plastic deformation temperature lowered by 200 °C

Maintains extraordinary strength before plasticity