The effect of 3mol% Y 2O 3 stabilized ZrO 2 produced by a steric entrapment method on the mechanical and sintering properties of Cr 3C 2 based cermets

Ali Özer; Waltraud M. Kriven; Yahya Kemal Tür

doi:10.1016/j.msea.2012.07.083

The effect of 3mol% Y ₂O ₃ stabilized ZrO ₂ produced by a steric entrapment method on the mechanical and sintering properties of Cr ₃C ₂ based cermets

Ali Özer, Waltraud M. Kriven, Yahya Kemal Tür

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

Abstract

The aim of the study was to increase the toughness and strength of the Cr ₃C ₂ based cermets without compromising other mechanical properties by reinforcing Cr ₃C ₂-NiCr with yttria stabilized tetragonal zirconia particles (3Y-TZP). The TZPs were produced by a steric entrapment process. Cr ₃C ₂-NiCr (master) and 2wt% 3Y-TZP reinforced Cr ₃C ₂-NiCr "73C2Z3" cermets were sintered and the sintering kinetics and resulting mechanical properties were determined. The master cermets were sintered to 97% of theoretical density at 1350°C while 73C2Z3 cermets achieved a relative density of 98.5% even at 1300°C. Elastic modulus, transverse rapture strength, hardness, and fracture toughness values were measured. For the master cermets, all mechanical properties showed an increasing trend by increasing the sintering temperature to 1350°C. On the other hand, the mechanical properties of 73C2Z3 cermets reached maximum or near maximum values at 1300°C. Moreover, 73C2Z3 cermets had higher strength and fracture toughness compared to that of the master cermets and this observation was attributed to smaller carbide grains, a homogeneous 3-D network structure of Ni-Cr metal binder phase and a good distribution of fine 3Y-TZPs.

Original language	English (US)
Pages (from-to)	878-884
Number of pages	7
Journal	Materials Science and Engineering A
Volume	556
DOIs	https://doi.org/10.1016/j.msea.2012.07.083
State	Published - Oct 30 2012

Keywords

3Y-TZP
Carbides
Cermet
Fracture
SEM
Sintering

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Online availability

10.1016/j.msea.2012.07.083

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Cite this

@article{cdf1ae5f78f44c10a07db94ac20be6c9,

title = "The effect of 3mol% Y 2O 3 stabilized ZrO 2 produced by a steric entrapment method on the mechanical and sintering properties of Cr 3C 2 based cermets",

abstract = "The aim of the study was to increase the toughness and strength of the Cr 3C 2 based cermets without compromising other mechanical properties by reinforcing Cr 3C 2-NiCr with yttria stabilized tetragonal zirconia particles (3Y-TZP). The TZPs were produced by a steric entrapment process. Cr 3C 2-NiCr (master) and 2wt% 3Y-TZP reinforced Cr 3C 2-NiCr {"}73C2Z3{"} cermets were sintered and the sintering kinetics and resulting mechanical properties were determined. The master cermets were sintered to 97% of theoretical density at 1350°C while 73C2Z3 cermets achieved a relative density of 98.5% even at 1300°C. Elastic modulus, transverse rapture strength, hardness, and fracture toughness values were measured. For the master cermets, all mechanical properties showed an increasing trend by increasing the sintering temperature to 1350°C. On the other hand, the mechanical properties of 73C2Z3 cermets reached maximum or near maximum values at 1300°C. Moreover, 73C2Z3 cermets had higher strength and fracture toughness compared to that of the master cermets and this observation was attributed to smaller carbide grains, a homogeneous 3-D network structure of Ni-Cr metal binder phase and a good distribution of fine 3Y-TZPs.",

keywords = "3Y-TZP, Carbides, Cermet, Fracture, SEM, Sintering",

author = "Ali {\"O}zer and Kriven, {Waltraud M.} and T{\"u}r, {Yahya Kemal}",

note = "Funding Information: The authors would like to acknowledge the partial support of the National Science Foundation of USA under the grant number of 919 NSF DMR 07-06606 and the Air Force Office of Scientific Research of USA under the grant number of 919 AF FA9550-09-1-0322 . The support of this work was also carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, at the University of Illinois at Urbana-Champaign . Authors thank to G.I.T. Research Council for supporting this work under a grant number of 2011-A-25 . Authors also thank Ahmet NAZIM and Adem {\c S}EN, for their assistance in SEM and XRD analysis of this work, respectively. ",

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doi = "10.1016/j.msea.2012.07.083",

language = "English (US)",

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journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

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TY - JOUR

T1 - The effect of 3mol% Y 2O 3 stabilized ZrO 2 produced by a steric entrapment method on the mechanical and sintering properties of Cr 3C 2 based cermets

AU - Özer, Ali

AU - Kriven, Waltraud M.

AU - Tür, Yahya Kemal

N1 - Funding Information: The authors would like to acknowledge the partial support of the National Science Foundation of USA under the grant number of 919 NSF DMR 07-06606 and the Air Force Office of Scientific Research of USA under the grant number of 919 AF FA9550-09-1-0322 . The support of this work was also carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, at the University of Illinois at Urbana-Champaign . Authors thank to G.I.T. Research Council for supporting this work under a grant number of 2011-A-25 . Authors also thank Ahmet NAZIM and Adem ŞEN, for their assistance in SEM and XRD analysis of this work, respectively.

PY - 2012/10/30

Y1 - 2012/10/30

N2 - The aim of the study was to increase the toughness and strength of the Cr 3C 2 based cermets without compromising other mechanical properties by reinforcing Cr 3C 2-NiCr with yttria stabilized tetragonal zirconia particles (3Y-TZP). The TZPs were produced by a steric entrapment process. Cr 3C 2-NiCr (master) and 2wt% 3Y-TZP reinforced Cr 3C 2-NiCr "73C2Z3" cermets were sintered and the sintering kinetics and resulting mechanical properties were determined. The master cermets were sintered to 97% of theoretical density at 1350°C while 73C2Z3 cermets achieved a relative density of 98.5% even at 1300°C. Elastic modulus, transverse rapture strength, hardness, and fracture toughness values were measured. For the master cermets, all mechanical properties showed an increasing trend by increasing the sintering temperature to 1350°C. On the other hand, the mechanical properties of 73C2Z3 cermets reached maximum or near maximum values at 1300°C. Moreover, 73C2Z3 cermets had higher strength and fracture toughness compared to that of the master cermets and this observation was attributed to smaller carbide grains, a homogeneous 3-D network structure of Ni-Cr metal binder phase and a good distribution of fine 3Y-TZPs.

AB - The aim of the study was to increase the toughness and strength of the Cr 3C 2 based cermets without compromising other mechanical properties by reinforcing Cr 3C 2-NiCr with yttria stabilized tetragonal zirconia particles (3Y-TZP). The TZPs were produced by a steric entrapment process. Cr 3C 2-NiCr (master) and 2wt% 3Y-TZP reinforced Cr 3C 2-NiCr "73C2Z3" cermets were sintered and the sintering kinetics and resulting mechanical properties were determined. The master cermets were sintered to 97% of theoretical density at 1350°C while 73C2Z3 cermets achieved a relative density of 98.5% even at 1300°C. Elastic modulus, transverse rapture strength, hardness, and fracture toughness values were measured. For the master cermets, all mechanical properties showed an increasing trend by increasing the sintering temperature to 1350°C. On the other hand, the mechanical properties of 73C2Z3 cermets reached maximum or near maximum values at 1300°C. Moreover, 73C2Z3 cermets had higher strength and fracture toughness compared to that of the master cermets and this observation was attributed to smaller carbide grains, a homogeneous 3-D network structure of Ni-Cr metal binder phase and a good distribution of fine 3Y-TZPs.

KW - 3Y-TZP

KW - Carbides

KW - Cermet

KW - Fracture

KW - SEM

KW - Sintering

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