Microhardness indentation size effect in flux-grown crystals of rare earth aluminates

J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (S1): 85-88.

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Microhardness indentation size effect in flux-grown crystals of rare earth aluminates

Jianghong GONG, Zhenduo GUAN

State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China

Received:2000-12-22 Revised:1900-01-01 Online:2001-10-28 Published:2009-10-10
Contact: Jianghong GONG

Abstract

Abstract: The previously reported results of microhardness measurements on flux-grown crystals of rare earth aluminates were re-examined in this paper to explore the applicability of the proportional specimen resistance (PSR) model to describe the indentation size effect. It was found that the PSR model is insufficient for describing the experimental data and a modified form of this model was proposed based on the consideration of the effect of surface stress state on hardness testing.

Key words:

Jianghong GONG, Zhenduo GUAN. Microhardness indentation size effect in flux-grown crystals of rare earth aluminates[J]. J Mater Sci Technol, 2001, 17(S1): 85-88.

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Microhardness indentation size effect in flux-grown crystals of rare earth aluminates

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