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Micromechanical Hardness of Strontium Tartrate Trihydrate Crystals
Author(s) -
Arora S. K.,
Patel Vipul,
Kothari Anjana,
Chudasama Bhupendra
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00608.x
Subject(s) - materials science , indentation hardness , fracture toughness , composite material , brittleness , yield (engineering) , anisotropy , strontium , crystal (programming language) , mineralogy , microstructure , optics , chemistry , physics , organic chemistry , computer science , programming language
The effect of load variation on the microhardness and microcracks of SrC 4 H 4 O 6 ·3H 2 O (STT) single crystals has been studied. The crystals are grown by using a controlled chemical reaction in silica hydrogel medium. We confirm the applicability of Hays and Kendall's law. There is some anisotropy in the hardness observed on different faces. We show different types of cracking in the crystal during loading. Fracture toughness, brittleness index, and yield strength of the grown crystals have also been determined using the fracture mechanism.