Influence of Loading Conditions on the Deformation Behaviour of Human Enamel Studied by Instrumented Indentation

被引：0

作者：

Halgas, Radoslav ^{[1
,2
]}

Dusza, Jan ^{[2
]}

Kaiferova, Jana ^{[3
]}

Kovacsova, Lucia ^{[3
]}

Markovska, Neda ^{[3
]}

机构：

[1] Fac Mat Sci & Technol STU, Inst Mat Sci, Paulinska 16, Trnava 91724, Slovakia

[2] Inst Mat Res, SAS, Kosice 04001, Slovakia

[3] UPJS, Dept Stomatol, Kosice 04166, Slovakia

来源：

LOCAL MECHANICAL PROPERTIES IX | 2014年 / 586卷

关键词：

human enamel; nanoindentation; loading rate; holding time; ISE; MECHANICAL-PROPERTIES; TOOTH ENAMEL; DENTIN; TEETH; NANOINDENTATION; JUNCTION; MODULUS; SCALE;

D O I：

10.4028/www.scientific.net/KEM.586.27

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this contribution the influence of loading conditions on the deformation behaviour of human enamel is investigated using instrumented indentation and Berkovich tip indenter. The used samples were fresh intact human premolars, extracted due to orthodontic reasons. Hardness tests were performed with different loading regimes. To study the influence of loading rates three different loading rates have been used with 10, 100 and 1000 mN/min. and maximum applied load of 200 mN. The indentation size effect (ISE) was studied using maximal loads from 5 mN to 400 mN, without holding time. The creep was investigated at constant load of 400 mN. The indents have been studied using atomic force microscopy and scanning electron microscopy.

引用

页码：27 / +

页数：2

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