Highly enhanced aging resistance of rapidly solidified zirconia toughened alumina bioceramics with refined eutectic microstructure

Guangrao Fan; Haijun Su; Jun Zhang; Min Guo; Haifang Liu; Yuan Liu; Di Zhao; Zhonglin Shen; Lin Liu; Hengzhi Fu

doi:10.1016/j.jeurceramsoc.2020.01.060

Highly enhanced aging resistance of rapidly solidified zirconia toughened alumina bioceramics with refined eutectic microstructure

Guangrao Fan, Haijun Su, Jun Zhang, Min Guo, Haifang Liu, Yuan Liu, Di Zhao, Zhonglin Shen, Lin Liu, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

9 Scopus citations

Abstract

A novel zirconia toughened alumina bioceramic (ZTA) with a unique microstructure was prepared by rapid solidification with laser floating melting zone technique. The magnitude of microstructure dimension of the solidified samples is refined at the level of the submicron scale (150 nm∼630 nm). The aging behavior of as-solidified ZTA bioceramic is investigated. The monoclinic ZrO₂ phase content of the solidified samples after 145 h of aging decreases from 30 % to 5.3 % when the solidification rate increases from 8 μm/s to 100 μm/s, lower than that of the sintered sample with the same composition. The growth rate (α_d) and the nucleation rate (N_r) of monoclinic phase of the solidified samples are lower than the sintered sample and the former is the dominant factor determining the aging behavior. Therefore, the solidified ZTA bioceramics exhibit excellent aging resistance that may cast light on extending the clinical application of all-ceramic dental prosthesis.

Original language	English
Pages (from-to)	2497-2503
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	40
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2020.01.060
State	Published - Jun 2020

Keywords

Dental materials
Hydrothermal aging
Laser floating zone melting
Phase transformation
Zirconia toughened alumina bioceramics

Access to Document

10.1016/j.jeurceramsoc.2020.01.060

Cite this

@article{a67223b318ef4fa180b2773d9a920fa3,

title = "Highly enhanced aging resistance of rapidly solidified zirconia toughened alumina bioceramics with refined eutectic microstructure",

abstract = "A novel zirconia toughened alumina bioceramic (ZTA) with a unique microstructure was prepared by rapid solidification with laser floating melting zone technique. The magnitude of microstructure dimension of the solidified samples is refined at the level of the submicron scale (150 nm∼630 nm). The aging behavior of as-solidified ZTA bioceramic is investigated. The monoclinic ZrO2 phase content of the solidified samples after 145 h of aging decreases from 30 % to 5.3 % when the solidification rate increases from 8 μm/s to 100 μm/s, lower than that of the sintered sample with the same composition. The growth rate (αd) and the nucleation rate (Nr) of monoclinic phase of the solidified samples are lower than the sintered sample and the former is the dominant factor determining the aging behavior. Therefore, the solidified ZTA bioceramics exhibit excellent aging resistance that may cast light on extending the clinical application of all-ceramic dental prosthesis.",

keywords = "Dental materials, Hydrothermal aging, Laser floating zone melting, Phase transformation, Zirconia toughened alumina bioceramics",

author = "Guangrao Fan and Haijun Su and Jun Zhang and Min Guo and Haifang Liu and Yuan Liu and Di Zhao and Zhonglin Shen and Lin Liu and Hengzhi Fu",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = jun,

doi = "10.1016/j.jeurceramsoc.2020.01.060",

language = "英语",

volume = "40",

pages = "2497--2503",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "6",

}

TY - JOUR

T1 - Highly enhanced aging resistance of rapidly solidified zirconia toughened alumina bioceramics with refined eutectic microstructure

AU - Fan, Guangrao

AU - Su, Haijun

AU - Zhang, Jun

AU - Guo, Min

AU - Liu, Haifang

AU - Liu, Yuan

AU - Zhao, Di

AU - Shen, Zhonglin

AU - Liu, Lin

AU - Fu, Hengzhi

PY - 2020/6

Y1 - 2020/6

N2 - A novel zirconia toughened alumina bioceramic (ZTA) with a unique microstructure was prepared by rapid solidification with laser floating melting zone technique. The magnitude of microstructure dimension of the solidified samples is refined at the level of the submicron scale (150 nm∼630 nm). The aging behavior of as-solidified ZTA bioceramic is investigated. The monoclinic ZrO2 phase content of the solidified samples after 145 h of aging decreases from 30 % to 5.3 % when the solidification rate increases from 8 μm/s to 100 μm/s, lower than that of the sintered sample with the same composition. The growth rate (αd) and the nucleation rate (Nr) of monoclinic phase of the solidified samples are lower than the sintered sample and the former is the dominant factor determining the aging behavior. Therefore, the solidified ZTA bioceramics exhibit excellent aging resistance that may cast light on extending the clinical application of all-ceramic dental prosthesis.

AB - A novel zirconia toughened alumina bioceramic (ZTA) with a unique microstructure was prepared by rapid solidification with laser floating melting zone technique. The magnitude of microstructure dimension of the solidified samples is refined at the level of the submicron scale (150 nm∼630 nm). The aging behavior of as-solidified ZTA bioceramic is investigated. The monoclinic ZrO2 phase content of the solidified samples after 145 h of aging decreases from 30 % to 5.3 % when the solidification rate increases from 8 μm/s to 100 μm/s, lower than that of the sintered sample with the same composition. The growth rate (αd) and the nucleation rate (Nr) of monoclinic phase of the solidified samples are lower than the sintered sample and the former is the dominant factor determining the aging behavior. Therefore, the solidified ZTA bioceramics exhibit excellent aging resistance that may cast light on extending the clinical application of all-ceramic dental prosthesis.

KW - Dental materials

KW - Hydrothermal aging

KW - Laser floating zone melting

KW - Phase transformation

KW - Zirconia toughened alumina bioceramics

UR - http://www.scopus.com/inward/record.url?scp=85078481668&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2020.01.060

DO - 10.1016/j.jeurceramsoc.2020.01.060

M3 - 文章

AN - SCOPUS:85078481668

SN - 0955-2219

VL - 40

SP - 2497

EP - 2503

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Highly enhanced aging resistance of rapidly solidified zirconia toughened alumina bioceramics with refined eutectic microstructure

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this