Details
| Original language | English |
|---|---|
| Pages (from-to) | 15891-15898 |
| Number of pages | 8 |
| Journal | Ceramics international |
| Volume | 43 |
| Issue number | 17 |
| Publication status | Published - 26 Aug 2017 |
Abstract
A detailed and systematic comparison of the residual strength, after indentation and grinding, of three different zirconia-based materials is reported. The materials analyzed were: yttria-stabilized zirconia (Y-TZP “MZ111”), alumina-toughened zirconia (ATZ “TZ-3Y20AB”), and a newly-developed strontium hexaaluminate-toughened zirconia (“HTZ500”). HTZ500 showed higher residual strength after indentation and grinding than the reference materials MZ111 and TZ-3Y20AB. HTZ500 combines an initial strength exceeding 1700 MPa, fracture toughness of 8.6 MPa·√m, and an elastic modulus of 213 GPa. The strain to failure was 1.7 times that of the reference materials. These features make the newly-developed material a desirable alternative to the commonly-used materials Y-TZP and ATZ, for example for use in medical implants. The damage tolerance, in particular, may be attributed to the strengthening mechanisms applied. Beside the phase transformation, the addition of dispersed strontium hexaaluminate platelets into the zirconia microstructure provides a supplementary strengthening mechanism.
Keywords
- Damage tolerance, Grinding, Indentation, Residual strength, Zirconia
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Ceramics and Composites
- Chemical Engineering(all)
- Process Chemistry and Technology
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Materials Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Ceramics international, Vol. 43, No. 17, 26.08.2017, p. 15891-15898.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of strontium hexaaluminate addition on the damage-tolerance of yttria-stabilized zirconia
AU - Gottwik, L.
AU - Wippermann, A.
AU - Kuntz, M.
AU - Denkena, B.
N1 - Funding information: This project was funded by the Collaborative Research Center 599 for Biomedical Technology , a Center of the German Research Foundation (DFG) , within the project T5 “Development of Methods for the Production and Automated Processing of Damage Tolerant, Sintered ZrO2 Ceramics for Dental Applications”, a Cooperation between the Institute of Production Engineering and Machine Tools (IFW) and CeramTec GmbH ( SFB 599 T5 ). All ceramic specimens used in this work were provided by CeramTec GmbH.
PY - 2017/8/26
Y1 - 2017/8/26
N2 - A detailed and systematic comparison of the residual strength, after indentation and grinding, of three different zirconia-based materials is reported. The materials analyzed were: yttria-stabilized zirconia (Y-TZP “MZ111”), alumina-toughened zirconia (ATZ “TZ-3Y20AB”), and a newly-developed strontium hexaaluminate-toughened zirconia (“HTZ500”). HTZ500 showed higher residual strength after indentation and grinding than the reference materials MZ111 and TZ-3Y20AB. HTZ500 combines an initial strength exceeding 1700 MPa, fracture toughness of 8.6 MPa·√m, and an elastic modulus of 213 GPa. The strain to failure was 1.7 times that of the reference materials. These features make the newly-developed material a desirable alternative to the commonly-used materials Y-TZP and ATZ, for example for use in medical implants. The damage tolerance, in particular, may be attributed to the strengthening mechanisms applied. Beside the phase transformation, the addition of dispersed strontium hexaaluminate platelets into the zirconia microstructure provides a supplementary strengthening mechanism.
AB - A detailed and systematic comparison of the residual strength, after indentation and grinding, of three different zirconia-based materials is reported. The materials analyzed were: yttria-stabilized zirconia (Y-TZP “MZ111”), alumina-toughened zirconia (ATZ “TZ-3Y20AB”), and a newly-developed strontium hexaaluminate-toughened zirconia (“HTZ500”). HTZ500 showed higher residual strength after indentation and grinding than the reference materials MZ111 and TZ-3Y20AB. HTZ500 combines an initial strength exceeding 1700 MPa, fracture toughness of 8.6 MPa·√m, and an elastic modulus of 213 GPa. The strain to failure was 1.7 times that of the reference materials. These features make the newly-developed material a desirable alternative to the commonly-used materials Y-TZP and ATZ, for example for use in medical implants. The damage tolerance, in particular, may be attributed to the strengthening mechanisms applied. Beside the phase transformation, the addition of dispersed strontium hexaaluminate platelets into the zirconia microstructure provides a supplementary strengthening mechanism.
KW - Damage tolerance
KW - Grinding
KW - Indentation
KW - Residual strength
KW - Zirconia
UR - http://www.scopus.com/inward/record.url?scp=85028438263&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2017.08.163
DO - 10.1016/j.ceramint.2017.08.163
M3 - Article
AN - SCOPUS:85028438263
VL - 43
SP - 15891
EP - 15898
JO - Ceramics international
JF - Ceramics international
SN - 0272-8842
IS - 17
ER -