Theoretical description of zirconia ceramics aging kinetics

Theoretical description of zirconia ceramics aging kinetics An analytical approach for fraction calculation of monoclinic phase on zirconia surface under aging conditions was developed. The approach is based on a model of nucleation and growth of areas which underwent tetragonal to monoclinic transformation. Nucleation in this model takes place only at the material surface with nucleation rate proportional to the area of non-transformed zone. The nuclei are conical in shape; their initial dimensions and growth rate are constant. The resulting equations describe factual and observed monoclinic phase content on the surface of zirconia ceramics. The equations correlate well with experi- mental data on tetragonal zirconia ceramics aging kinetics. . . . Keywords Zirconia TZP Aging Modeling Introduction of tetragonal to monoclinic (t-m) transformation with increase in temperature is observed [8, 9]. On the other hand, uncon- Zirconia ceramics are structural materials renowned for their trolled t-m transformation in humid environment, especially in outstanding combination of hardness, fracture toughness, flex- the temperature range 100–400 °C, takes place—phenomenon ural strength, and corrosion resistance [1, 2]. Fracture tough- known as LTD (low-temperature degradation). LTD is partic- ness and bending strength associated with zirconia ceramics ularly important for zirconia ceramics used in dental restor- resistance to crack propagation can indeed http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Australian Ceramic Society Springer Journals

Theoretical description of zirconia ceramics aging kinetics

Loading next page...
 
/lp/springer_journal/theoretical-description-of-zirconia-ceramics-aging-kinetics-737ZuuBxrM
Publisher
Springer Singapore
Copyright
Copyright © 2018 by Australian Ceramic Society
Subject
Materials Science; Ceramics, Glass, Composites, Natural Materials; Materials Engineering; Inorganic Chemistry
ISSN
2510-1560
eISSN
2510-1579
D.O.I.
10.1007/s41779-018-0211-6
Publisher site
See Article on Publisher Site

Abstract

An analytical approach for fraction calculation of monoclinic phase on zirconia surface under aging conditions was developed. The approach is based on a model of nucleation and growth of areas which underwent tetragonal to monoclinic transformation. Nucleation in this model takes place only at the material surface with nucleation rate proportional to the area of non-transformed zone. The nuclei are conical in shape; their initial dimensions and growth rate are constant. The resulting equations describe factual and observed monoclinic phase content on the surface of zirconia ceramics. The equations correlate well with experi- mental data on tetragonal zirconia ceramics aging kinetics. . . . Keywords Zirconia TZP Aging Modeling Introduction of tetragonal to monoclinic (t-m) transformation with increase in temperature is observed [8, 9]. On the other hand, uncon- Zirconia ceramics are structural materials renowned for their trolled t-m transformation in humid environment, especially in outstanding combination of hardness, fracture toughness, flex- the temperature range 100–400 °C, takes place—phenomenon ural strength, and corrosion resistance [1, 2]. Fracture tough- known as LTD (low-temperature degradation). LTD is partic- ness and bending strength associated with zirconia ceramics ularly important for zirconia ceramics used in dental restor- resistance to crack propagation can indeed

Journal

Journal of the Australian Ceramic SocietySpringer Journals

Published: Jun 6, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off