The role of percolation threshold for the control of the hardness and thermal stability of super- and ultrahard nanocomposites

A. Niederhofer; T. Bolom; P. Nesladek; K. Moto; C. Eggs; D. S. Patil; S. Veprek

doi:10.1016/S0257-8972(01)01469-4

The role of percolation threshold for the control of the hardness and thermal stability of super- and ultrahard nanocomposites

A. Niederhofer, T. Bolom, P. Nesladek, K. Moto, C. Eggs, D. S. Patil, S. Veprek

Department of Physics

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

130 Citations (Scopus)

Abstract

It is shown that enhancement of the hardness in superhard nanocomposites is due to the percolative nature of phase segregation, which results in approximately 1-ML coverage of the transition metal nanocrystals with the non-polar Si₃N₄. The formation of a nanostructure that is stable against coarsening up to relatively high temperatures is a consequence of the thermodynamically driven segregation of the immiscible phases.

Original language	English
Pages (from-to)	183-188
Number of pages	6
Journal	Surface and Coatings Technology
Volume	146-147
DOIs	https://doi.org/10.1016/S0257-8972(01)01469-4
Publication status	Published - Sep 2001

Keywords

Hardness
Nanocomposite
Percolation threshold

Access to Document

10.1016/S0257-8972(01)01469-4

Cite this

@article{9afaed0d981a435890707d0243aa73f6,

title = "The role of percolation threshold for the control of the hardness and thermal stability of super- and ultrahard nanocomposites",

abstract = "It is shown that enhancement of the hardness in superhard nanocomposites is due to the percolative nature of phase segregation, which results in approximately 1-ML coverage of the transition metal nanocrystals with the non-polar Si3N4. The formation of a nanostructure that is stable against coarsening up to relatively high temperatures is a consequence of the thermodynamically driven segregation of the immiscible phases.",

keywords = "Hardness, Nanocomposite, Percolation threshold",

author = "A. Niederhofer and T. Bolom and P. Nesladek and K. Moto and C. Eggs and Patil, {D. S.} and S. Veprek",

note = "Funding Information: This work was supported in part by the NATO Science for Peace Project SfP 972379 and by the German Science Foundation. D.S. Patil thanks the German Space Agency (DLR) for providing him with a grant during his stay at the Technical University Munich.",

year = "2001",

month = sep,

doi = "10.1016/S0257-8972(01)01469-4",

language = "English",

volume = "146-147",

pages = "183--188",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

}

TY - JOUR

T1 - The role of percolation threshold for the control of the hardness and thermal stability of super- and ultrahard nanocomposites

AU - Niederhofer, A.

AU - Bolom, T.

AU - Nesladek, P.

AU - Moto, K.

AU - Eggs, C.

AU - Patil, D. S.

AU - Veprek, S.

N1 - Funding Information: This work was supported in part by the NATO Science for Peace Project SfP 972379 and by the German Science Foundation. D.S. Patil thanks the German Space Agency (DLR) for providing him with a grant during his stay at the Technical University Munich.

PY - 2001/9

Y1 - 2001/9

N2 - It is shown that enhancement of the hardness in superhard nanocomposites is due to the percolative nature of phase segregation, which results in approximately 1-ML coverage of the transition metal nanocrystals with the non-polar Si3N4. The formation of a nanostructure that is stable against coarsening up to relatively high temperatures is a consequence of the thermodynamically driven segregation of the immiscible phases.

AB - It is shown that enhancement of the hardness in superhard nanocomposites is due to the percolative nature of phase segregation, which results in approximately 1-ML coverage of the transition metal nanocrystals with the non-polar Si3N4. The formation of a nanostructure that is stable against coarsening up to relatively high temperatures is a consequence of the thermodynamically driven segregation of the immiscible phases.

KW - Hardness

KW - Nanocomposite

KW - Percolation threshold

UR - http://www.scopus.com/inward/record.url?scp=0035465769&partnerID=8YFLogxK

U2 - 10.1016/S0257-8972(01)01469-4

DO - 10.1016/S0257-8972(01)01469-4

M3 - Article

AN - SCOPUS:0035465769

VL - 146-147

SP - 183

EP - 188

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

ER -

The role of percolation threshold for the control of the hardness and thermal stability of super- and ultrahard nanocomposites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this