Mechanical properties of HfB2.7 nanocrystalline thin films

被引：19

作者：

Dub, S. N. ^{[1
]}

Goncharov, A. A. ^{[2
]}

Ponomarev, S. S. ^{[3
]}

Filippov, V. B. ^{[3
]}

Tolmacheva, G. N. ^{[4
]}

Agulov, A. V. ^{[2
]}

机构：

[1] Natl Acad Sci Ukraine, Bakul Inst Superhard Mat, UA-04074 Kiev, Ukraine

[2] Donbass State Machine Bldg Acad, UA-84313 Kramatorsk, Ukraine

[3] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, UA-03680 Kiev, Ukraine

[4] Kharkiv Inst Phys & Technol, Natl Sci Ctr, UA-61108 Kharkov, Ukraine

来源：

JOURNAL OF SUPERHARD MATERIALS | 2011年 / 33卷 / 03期

关键词：

hafnium diboride; nanoindentation; hardness; elastic modulus; INDENTATION; BEHAVIOR; HARDNESS; HAFNIUM; LOAD;

D O I：

10.3103/S1063457611030026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper describes comparative nanoindentation tests of an HfB2 single crystal and an HfB2.7 nanocrystalline thin film deposited on a steel substrate by magnetron sputtering. The boron superstoichiometry and small grain size are shown to result in a significant increase in hardness and decrease of elastic modulus of the thin HfB2.7 film in comparison to the bulk single crystal. The abnormally high (for inorganic materials) value (87%) of elastic recovery of the impression depth in the thin HfB2.7 film upon the indenter unloading suggests that the film can be considered as a promising wear-resistant coating.

引用

页码：151 / 158

页数：8

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