Commentary on using H/E and H3/E2 as proxies for fracture toughness of hard coatings

Xinjie Chen; Yao Du; Yip Wah Chung

doi:10.1016/j.tsf.2019.04.040

Commentary on using H/E and H³/E² as proxies for fracture toughness of hard coatings

Xinjie Chen, Yao Du, Yip Wah Chung^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

172 Scopus citations

Abstract

While positive correlation between fracture toughness and H/E and H³/E² has been reported for some ceramic coatings, we outline an argument that such correlation cannot be true in general, especially for nanolayer and nanocomposite coatings that present multiple interfaces to impede crack growth. Literature data are presented to support this argument.

Original language	English (US)
Article number	137265
Journal	Thin Solid Films
Volume	688
DOIs	https://doi.org/10.1016/j.tsf.2019.04.040
State	Published - Oct 31 2019

Funding

This work was supported by the US National Science Foundation (Grant No. CMMI-1462850). We wish to thank Prof. Joe Greene for inspiring us in the tackling of such a difficult subject. This work was supported by the US National Science Foundation (Grant No. CMMI-1462850 ). We wish to thank Prof. Joe Greene for inspiring us in the tackling of such a difficult subject.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2019.04.040

Cite this

@article{9451c495507248f4a58885bf4e0c6980,

title = "Commentary on using H/E and H3/E2 as proxies for fracture toughness of hard coatings",

abstract = "While positive correlation between fracture toughness and H/E and H3/E2 has been reported for some ceramic coatings, we outline an argument that such correlation cannot be true in general, especially for nanolayer and nanocomposite coatings that present multiple interfaces to impede crack growth. Literature data are presented to support this argument.",

author = "Xinjie Chen and Yao Du and Chung, {Yip Wah}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = oct,

day = "31",

doi = "10.1016/j.tsf.2019.04.040",

language = "English (US)",

volume = "688",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

}

TY - JOUR

T1 - Commentary on using H/E and H3/E2 as proxies for fracture toughness of hard coatings

AU - Chen, Xinjie

AU - Du, Yao

AU - Chung, Yip Wah

PY - 2019/10/31

Y1 - 2019/10/31

N2 - While positive correlation between fracture toughness and H/E and H3/E2 has been reported for some ceramic coatings, we outline an argument that such correlation cannot be true in general, especially for nanolayer and nanocomposite coatings that present multiple interfaces to impede crack growth. Literature data are presented to support this argument.

AB - While positive correlation between fracture toughness and H/E and H3/E2 has been reported for some ceramic coatings, we outline an argument that such correlation cannot be true in general, especially for nanolayer and nanocomposite coatings that present multiple interfaces to impede crack growth. Literature data are presented to support this argument.

UR - http://www.scopus.com/inward/record.url?scp=85064906548&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064906548&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2019.04.040

DO - 10.1016/j.tsf.2019.04.040

M3 - Article

AN - SCOPUS:85064906548

SN - 0040-6090

VL - 688

JO - Thin Solid Films

JF - Thin Solid Films

M1 - 137265

ER -