Ultrahigh hardness and improved ductility for nanotwinned mercury cadmium telluride

Authors :: Guojun Ma
Fangyuan Li
Xiaoguang Guo
Zhenyu Zhang
Renke Kang
Source :: Scripta Materialia. 69:231-234
Publication Year :: 2013
Publisher :: Elsevier BV, 2013.
Abstract: Unidirectionally coherent and boundary-free nanotwinned (nt) mercury cadmium telluride (HgCdTe or MCT) was achieved under plastic deformation of nanoindentation. The hardness of nt-MCT is up to 47.2 GPa, which is two orders magnitude higher than that of monocrystalline MCT. This increased hardness originates from the unique composite nt structure, which exhibits a repeated pattern comprising a lamellar twin >11.5 nm thick, followed by one or several lamellar twins with thicknesses

Subjects :: Materials science
Mechanical Engineering
Metallurgy
Composite number
Metals and Alloys
Nanoindentation
Condensed Matter Physics
Monocrystalline silicon
chemistry.chemical_compound
chemistry
Mechanics of Materials
General Materials Science
Lamellar structure
Mercury cadmium telluride
Ductility

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