Load and directional effects on microhardness and estimation of toughness and brittleness for flux-grown LaBO3 crystals

Jain, Anima; Razdan, Ashok; Kotru, P. N.; Wanklyn, B.M.

doi:10.1007/bf00357358

Cited by 33 publications

(5 citation statements)

References 24 publications

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“…The literature [15,16] also indicates the decrease and increase of H v with rising applied load for materials culminating n < 2 and n > 2, respectively. A plot between log P and log d (Fig.…”

Section: Effect Of Applied Load On Micro-hardnessmentioning

confidence: 96%

Anisotropic lamellae growth and hardness of eutectic composite alloy Pb–Sn

Sharma

2004

Journal of Alloys and Compounds

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Section: Effect Of Applied Load On Micro-hardnessmentioning

confidence: 96%

Anisotropic lamellae growth and hardness of eutectic composite alloy Pb–Sn

Sharma

2004

Journal of Alloys and Compounds

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“…The effect of different chemical environments on the hardness of some polyblends has been studied 9 . The effect of crystal orientation 10,11 as well as aging 12 and curing 13 on hardness of materials has also been reported. The load effect of microhardness is an important study 14,15 that needs to be thoroughly carried out to obtain information on the mechanical properties of materials.…”

Section: Introductionmentioning

confidence: 99%

Micromechanical Hardness of Strontium Tartrate Trihydrate Crystals

Arora

Patel

Kothari

et al. 2005

Journal of the American Ceramic Society

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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.

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“… a The crystal structural data are from Inorganic Crystal Structure Database, and similarly hereinafter unless otherwise noted. b Converted from Mohs value by H v = 0.0325( H m ) 3 (ref ). c Converted from Mohs values d Ref . e Ref . f RE = La, Nd, Gd, and Tb. g Converted from Mohs values h Converted from Mohs values …”

Section: Resultsmentioning

confidence: 99%

Group Electronegativity for Prediction of Materials Hardness

Yang

Niu

et al. 2012

J. Phys. Chem. A

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We have developed a method to predict the hardness of materials containing ultrastrong anionic polyhedra, dense atomic clusters, and layers stacked through van der Waals bonds on the basis of group electronegativity. By considering these polyhedra, clusters, and layers as groups that behave as rigid unities like superatoms bonding to other atoms or groups, the hardness values of materials such as oxysalts, T-carbon, and graphite were quantitatively calculated, and the results are consistent with the available experiments. We found that the hardness of materials containing these artificial groups is determined by the bonds between the groups and other atoms or groups, rather than by the weakest bonds. This work sheds light on the nature of materials hardness and the design of novel inorganic crystal materials.

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Load and directional effects on microhardness and estimation of toughness and brittleness for flux-grown LaBO3 crystals

Cited by 33 publications

References 24 publications

Anisotropic lamellae growth and hardness of eutectic composite alloy Pb–Sn

Anisotropic lamellae growth and hardness of eutectic composite alloy Pb–Sn

Micromechanical Hardness of Strontium Tartrate Trihydrate Crystals

Group Electronegativity for Prediction of Materials Hardness

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