Microstructural design for high-strain-rate superplastic oxide ceramics

Keijiro Hiraga; Byung Nam Kim; Koji Morita; Tohru S. Suzuki; Yoshio Sakka

doi:10.2109/jcersj.113.191

Microstructural design for high-strain-rate superplastic oxide ceramics

Keijiro Hiraga, Byung Nam Kim, Koji Morita, Tohru S. Suzuki, Yoshio Sakka

Research output: Contribution to journal › Review article

20 Citations (Scopus)

Abstract

Factors limiting the strain rate available to superplastic deformation in oxide ceramics are discussed from existing knowledge about high-temperature plastic deformation and cavitation mechanisms. Simultaneously controlling these factors is essential for attaining high-strain-rate superplasticity (HSRS). This is shown in monolithic tetragonal zirconia and composite materials consisting of zirconia, α-alumina and a spinel phase: at strain rates higher than 10^-2 s^-1, tensile ductility reached 300-600% in the monolithic material and 600-2500% in the composite materials. Post-deformation microstructure indicates that certain secondary phases should be effective in suppressing cavitation damage and thereby enhancing HSRS.

Original language	English
Pages (from-to)	191-197
Number of pages	7
Journal	Journal of the Ceramic Society of Japan
Volume	113
Issue number	1315
DOIs	https://doi.org/10.2109/jcersj.113.191
Publication status	Published - 2005 Mar
Externally published	Yes

Keywords

Accommodation
Cavity growth
Cavity nucleation
Dynamic grain growth
Grain-boundary sliding
High-strain-rate superplasticity
Stress relaxation

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.2109/jcersj.113.191

Fingerprint Dive into the research topics of 'Microstructural design for high-strain-rate superplastic oxide ceramics'. Together they form a unique fingerprint.

Cite this

Hiraga, K., Kim, B. N., Morita, K., Suzuki, T. S., & Sakka, Y. (2005). Microstructural design for high-strain-rate superplastic oxide ceramics. Journal of the Ceramic Society of Japan, 113(1315), 191-197. https://doi.org/10.2109/jcersj.113.191

@article{74abf33c5c4347e9be8517ff921e1fe9,

title = "Microstructural design for high-strain-rate superplastic oxide ceramics",

abstract = "Factors limiting the strain rate available to superplastic deformation in oxide ceramics are discussed from existing knowledge about high-temperature plastic deformation and cavitation mechanisms. Simultaneously controlling these factors is essential for attaining high-strain-rate superplasticity (HSRS). This is shown in monolithic tetragonal zirconia and composite materials consisting of zirconia, α-alumina and a spinel phase: at strain rates higher than 10-2 s-1, tensile ductility reached 300-600% in the monolithic material and 600-2500% in the composite materials. Post-deformation microstructure indicates that certain secondary phases should be effective in suppressing cavitation damage and thereby enhancing HSRS.",

keywords = "Accommodation, Cavity growth, Cavity nucleation, Dynamic grain growth, Grain-boundary sliding, High-strain-rate superplasticity, Stress relaxation",

author = "Keijiro Hiraga and Kim, {Byung Nam} and Koji Morita and Suzuki, {Tohru S.} and Yoshio Sakka",

year = "2005",

month = mar,

doi = "10.2109/jcersj.113.191",

language = "English",

volume = "113",

pages = "191--197",

journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",

issn = "1882-0743",

publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

number = "1315",

}

TY - JOUR

T1 - Microstructural design for high-strain-rate superplastic oxide ceramics

AU - Hiraga, Keijiro

AU - Kim, Byung Nam

AU - Morita, Koji

AU - Suzuki, Tohru S.

AU - Sakka, Yoshio

PY - 2005/3

Y1 - 2005/3

N2 - Factors limiting the strain rate available to superplastic deformation in oxide ceramics are discussed from existing knowledge about high-temperature plastic deformation and cavitation mechanisms. Simultaneously controlling these factors is essential for attaining high-strain-rate superplasticity (HSRS). This is shown in monolithic tetragonal zirconia and composite materials consisting of zirconia, α-alumina and a spinel phase: at strain rates higher than 10-2 s-1, tensile ductility reached 300-600% in the monolithic material and 600-2500% in the composite materials. Post-deformation microstructure indicates that certain secondary phases should be effective in suppressing cavitation damage and thereby enhancing HSRS.

AB - Factors limiting the strain rate available to superplastic deformation in oxide ceramics are discussed from existing knowledge about high-temperature plastic deformation and cavitation mechanisms. Simultaneously controlling these factors is essential for attaining high-strain-rate superplasticity (HSRS). This is shown in monolithic tetragonal zirconia and composite materials consisting of zirconia, α-alumina and a spinel phase: at strain rates higher than 10-2 s-1, tensile ductility reached 300-600% in the monolithic material and 600-2500% in the composite materials. Post-deformation microstructure indicates that certain secondary phases should be effective in suppressing cavitation damage and thereby enhancing HSRS.

KW - Accommodation

KW - Cavity growth

KW - Cavity nucleation

KW - Dynamic grain growth

KW - Grain-boundary sliding

KW - High-strain-rate superplasticity

KW - Stress relaxation

UR - http://www.scopus.com/inward/record.url?scp=17144386671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144386671&partnerID=8YFLogxK

U2 - 10.2109/jcersj.113.191

DO - 10.2109/jcersj.113.191

M3 - Review article

AN - SCOPUS:17144386671

VL - 113

SP - 191

EP - 197

JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

SN - 1882-0743

IS - 1315

ER -