Details
| Original language | English |
|---|---|
| Pages (from-to) | 1827-1837 |
| Number of pages | 11 |
| Journal | Journal of Materials Processing Technology |
| Volume | 210 |
| Issue number | 14 |
| Publication status | Published - 1 Jul 2010 |
Abstract
Nacre is a composite material found in the inner layer of sea shells. It consists of soft organic and hard inorganic components arranged in a complex hierarchical structure. Due to this arrangement, nacre exhibits outstanding mechanical properties (elastic modulus: 64.70 ± 3.50 GPa, hardness: 4.41 ± 0.45 GPa, density: 2.6 g/cm3). Therefore, nacreous implant materials have a high potential in many fields. In medical science, these materials might be used for bone replacement. This article provides an insight into the material removal mechanisms occurring in the scratching of natural nacre. Scratch tests are a simplification of the grinding process and are used to investigate the influence of single input parameters on the material removal. Different scratch tool geometries and varying processing parameters are applied, so that the material removal efficiency can be evaluated by analyzing the process forces. Additionally, the scratch geometry is examined by using a scanning electron microscope (SEM) and optical profilometer images as well as photomicrographs. The results of these examinations provide knowledge on the machinability of nacre and also on the machinability of new nacreous materials.
Keywords
- Biomimetics, Implant materials, Material removal mechanisms, Nacre, Scratch tests
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Computer Science(all)
- Computer Science Applications
- Materials Science(all)
- Metals and Alloys
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Journal of Materials Processing Technology, Vol. 210, No. 14, 01.07.2010, p. 1827-1837.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Ductile and brittle material removal mechanisms in natural nacre A model for novel implant materials
T2 - A model for novel implant materials
AU - Denkena, Berend
AU - Koehler, Jens
AU - Moral, Analía
N1 - Funding information: This research project is part of the Collaborative Research Centre 599 “Biomedical Technology - Sustainable bioresorbable and permanent implants of metallic and ceramic materials”, sub-project D9 “Biomimetic Ceramics”. The authors would like to thank the German Research Foundation for the funding and support of the presented work.
PY - 2010/7/1
Y1 - 2010/7/1
N2 - Nacre is a composite material found in the inner layer of sea shells. It consists of soft organic and hard inorganic components arranged in a complex hierarchical structure. Due to this arrangement, nacre exhibits outstanding mechanical properties (elastic modulus: 64.70 ± 3.50 GPa, hardness: 4.41 ± 0.45 GPa, density: 2.6 g/cm3). Therefore, nacreous implant materials have a high potential in many fields. In medical science, these materials might be used for bone replacement. This article provides an insight into the material removal mechanisms occurring in the scratching of natural nacre. Scratch tests are a simplification of the grinding process and are used to investigate the influence of single input parameters on the material removal. Different scratch tool geometries and varying processing parameters are applied, so that the material removal efficiency can be evaluated by analyzing the process forces. Additionally, the scratch geometry is examined by using a scanning electron microscope (SEM) and optical profilometer images as well as photomicrographs. The results of these examinations provide knowledge on the machinability of nacre and also on the machinability of new nacreous materials.
AB - Nacre is a composite material found in the inner layer of sea shells. It consists of soft organic and hard inorganic components arranged in a complex hierarchical structure. Due to this arrangement, nacre exhibits outstanding mechanical properties (elastic modulus: 64.70 ± 3.50 GPa, hardness: 4.41 ± 0.45 GPa, density: 2.6 g/cm3). Therefore, nacreous implant materials have a high potential in many fields. In medical science, these materials might be used for bone replacement. This article provides an insight into the material removal mechanisms occurring in the scratching of natural nacre. Scratch tests are a simplification of the grinding process and are used to investigate the influence of single input parameters on the material removal. Different scratch tool geometries and varying processing parameters are applied, so that the material removal efficiency can be evaluated by analyzing the process forces. Additionally, the scratch geometry is examined by using a scanning electron microscope (SEM) and optical profilometer images as well as photomicrographs. The results of these examinations provide knowledge on the machinability of nacre and also on the machinability of new nacreous materials.
KW - Biomimetics
KW - Implant materials
KW - Material removal mechanisms
KW - Nacre
KW - Scratch tests
UR - http://www.scopus.com/inward/record.url?scp=77956342624&partnerID=8YFLogxK
U2 - 10.1016/j.jmatprotec.2010.06.014
DO - 10.1016/j.jmatprotec.2010.06.014
M3 - Article
AN - SCOPUS:77956342624
VL - 210
SP - 1827
EP - 1837
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
SN - 0924-0136
IS - 14
ER -