Acta Stereologica Acta Stereologica -  Volume 12 (1993)  Number 1 - Sep. 1993 

Stereology in quantitative microstructural analysis: the orientation factor

Aldo R. Boccaccini
Rheinisch-Westfälische Technische Hochschule Institut für Gesteinshüttenkunde - Glas, Bio- und Verbundwerkstoffe - Mauerstraβe 5, W-5100 Aachen, Germany
Jörg Bossert
Rheinisch-Westfälische Technische Hochschule Institut für Gesteinshüttenkunde - Glas, Bio- und Verbundwerkstoffe - Mauerstraβe 5, W-5100 Aachen, Germany
Asif Malik
Rheinisch-Westfälische Technische Hochschule Institut für Gesteinshüttenkunde - Glas, Bio- und Verbundwerkstoffe - Mauerstraβe 5, W-5100 Aachen, Germany

Abstract

In order to describe orientation effects on the properties of multiphase engineering materials one needs more than a mathematically defined orientation factor. For practical purposes it is necessary that this orientation factor reflects three-dimensional orientation and can be derived from measurements made in two-dimensional cross sections by quantitative microstructural analysis. Furthermore it has to have a real meaning. This is what the present paper provides: an orientation factor which describes the orientation of particles or fibres in composites or other multiphase materials as a function of the angle between those features and a defined preferential direction (reference direction) as a spatial average and which results from values measured in two-dimensional sections via stereological relationships. Its derivation also implies, that the orientation factor reflects the orientation effect in microstructure-property-equations in agreement with experimental results.

Keywords : composites, microstructure-property-correlations, multiphase materials, orientation factor, quantitative microstructure analysis, stereology

Pour citer cet article

Aldo R. Boccaccini, Jörg Bossert & Asif Malik, «Stereology in quantitative microstructural analysis: the orientation factor», Acta Stereologica [En ligne], Volume 12 (1993), Number 1 - Sep. 1993, 17-30 URL : https://popups.uliege.be/0351-580x/index.php?id=1358.