Strain tomography of polycrystalline zirconia dental prostheses by synchrotron X-ray diffraction

Korsunsky, Alexander M.; Baimpas, Nikolaos; Belnoue, Jonathan P.-H.; Hofmann, Felix; Abbey, Brian; Xie, Mengying; Andrieux, J.; Buslaps, T.; Neo, Tee K.

doi:10.1016/j.actamat.2010.12.054

Cited by 44 publications

(40 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is probably due to the thin affected surface layer at the micron scale, which makes many methods insensitive [57]. Both x-ray and neutron beams have been used for internal stress measurement of zirconia materials [58,59]. Synchrotron x-ray diffraction may be the useful for mapping the strain tomography of zirconia surfaces [58].…”

Section: Discussionmentioning

confidence: 99%

“…Both x-ray and neutron beams have been used for internal stress measurement of zirconia materials [58,59]. Synchrotron x-ray diffraction may be the useful for mapping the strain tomography of zirconia surfaces [58]. These techniques require very complex data interpretation and tomographic reconstruction of strain, and have not been used for machined surface residual stress measurement in zirconia.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Engineered Zirconia Surfaces in Biomedical Applications

et al. 2017

View full text Add to dashboard Cite

Zirconia is widely used for load-bearing functional structures in medicine and dentistry. The quality of engineered zirconia surfaces determines not only the fracture and fatigue behaviour but also the low temperature degradation (ageing sensitivity), bacterial colonization and bonding strength of zirconia devices. This paper reviews the current manufacturing techniques for fabrication of zirconia surfaces in biomedical applications, particularly, in tooth and joint replacements, and influences of the zirconia surface quality on their functional behaviours. It discusses emerging manufacturing techniques and challenges for fabrication of zirconia surfaces in biomedical applications.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A Review of Engineered Zirconia Surfaces in Biomedical Applications

et al. 2017

View full text Add to dashboard Cite

show abstract

“…2a), guaranteeing that the same position could be detected during the compressive deformation of the dentine. Changes in the d-spacing between the lattice planes in the HAp were used to determine the elastic strain in the mineral HAp phase [33]. The apparent lattice elastic strain e was computed from the definition:…”

Section: Waxs Data Analysismentioning

confidence: 99%

Multiscale modelling and diffraction-based characterization of elastic behaviour of human dentine

et al. 2013

Self Cite

View full text Add to dashboard Cite

Human dentine is a hierarchical mineralized tissue with a two-level composite structure, with tubules being the prominent structural feature at a microlevel, and collagen fibres decorated with hydroxyapatite (HAp) crystallite platelets dominating the nanoscale. Few studies have focused on this two-level structure of human dentine, where the response to mechanical loading is thought to be affected not only by the tubule volume fraction at the microscale, but also by the shape and orientation distribution of mineral crystallites, and their nanoscale spatial arrangement and alignment. In this paper, in situ elastic strain evolution within HAp in dentine subjected to uniaxial compressive loading along both longitudinal and transverse directions was characterized simultaneously by two synchrotron X-ray scattering techniques: small- and wide-angle X-ray scattering (SAXS and WAXS, respectively). WAXS allows the evaluation of the apparent modulus linking the external load to the internal HAp crystallite strain, while the nanoscale HAp distribution and arrangement can be quantified by SAXS. We proposed an improved multiscale Eshelby inclusion model that takes into account the two-level hierarchical structure, and validated it with a multidirectional experimental strain evaluation. The agreement between the simulation and measurement indicates that the multiscale hierarchical model developed here accurately reflects the structural arrangement and mechanical response of human dentine. This study benefits the comprehensive understanding of the mechanical behaviour of hierarchical biomaterials. The knowledge of the mechanical properties related to the hierarchical structure is essential for the understanding and predicting the effects of structural alterations that may occur due to disease or treatment on the performance of dental tissues and their artificial replacements.

show abstract

“…"Rich tomography" serve to investigate nondestructively such complex quantities as internal strain distributions, grain shapes and lattice orientation, and even sub-grain crystal misorientations within bulk objects. While standard tomography is widely used for 3D imaging of density distributions, the new techniques that we describe below are referred to e.g., as "strain tomography" [Korsunsky et al (2011)] and "Laue orientation tomography" [Hofmann et al (2012)]. Mathematically, these techniques can employ standard tomographic algorithms to reconstruct the complex tensor and vector quantities of interest, or can rely on more sophisticated algorithmic tools.…”

Section: Introductionmentioning

confidence: 99%

Rich Tomography Techniques for the Analysis of Microstructure and Deformation

Baimpas

Xie

Song

et al. 2014

Int. J. Comput. Methods

Self Cite

View full text Add to dashboard Cite

Until very recently, the three-dimensionality of the material world presented numerous challenges in terms of characterization, data handling, visualization, and modeling. For this reason, 2D representation of sections, projections, or surfaces remained the mainstay of most popular imaging techniques, such as optical and electron microscopy and X-ray radiography. However, the advent of faster computers with greater memory capacity ensured that large 3D matrices can now not only be stored and manipulated efficiently, but also that advanced algorithms such as algebraic reconstruction techniques (ART) can be used to interpret redundant datasets containing multiple projections or averages across the object obtained by some suitable analytical measurement technique. These tools open up unprecedented opportunities for numerical simulation. Model formulation can be accomplished semi-automatically on the basis of microstructurally-informed 3D imaging, while model validation can be achieved by direct comparison of 3D maps of complex quantities, such as displacement vectors or strain tensor components. In this paper, we review several modalities of what can be referred to as "rich" tomography: strain tomography in the bulk of a load bearing structural component; Laue orientation tomography for nondestructive mapping of grain orientation within a polycrystal, and * * Corresponding author. 1343006-1 Int. J. Comput. Methods 2014.11. Downloaded from www.worldscientific.com by MONASH UNIVERSITY on 04/11/15. For personal use only. N. Baimpas et al. the use of sequences of tomographic reconstructions for digital volume correlation (DVC) analysis of in situ deformation.

show abstract

Strain tomography of polycrystalline zirconia dental prostheses by synchrotron X-ray diffraction

Cited by 44 publications

References 22 publications

A Review of Engineered Zirconia Surfaces in Biomedical Applications

A Review of Engineered Zirconia Surfaces in Biomedical Applications

Multiscale modelling and diffraction-based characterization of elastic behaviour of human dentine

Rich Tomography Techniques for the Analysis of Microstructure and Deformation

Contact Info

Product

Resources

About