GRAIN BOUNDARY PHASE AND MICROSTRUCTURAL STUDY ON NON-OXIDE SI3N4 CERAMICS

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KALANTAR M.

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Journal Paper

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2006 | Volume:13 | Issue:1 Page(s): 129-152

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Information Journal Paper

Title

GRAIN BOUNDARY PHASE AND MICROSTRUCTURAL STUDY ON NON-OXIDE SI3N4 CERAMICS

Author(s)

KALANTAR M. | Issue Writer Certificate

Keywords

THERMALQ3

CHEMICAL AND PLASMA ETCHINGQ3

MICROSTRUCTURAL PARAMETERSQ3

GRAIN BOUNDARY PHASE CRYSTALLIZATIONQ3

Abstract

Engineering ceramics are often difficult to prepare for observation because of their hardness, wear resistance and chemical inertness. Different silicon nitride containing ‎Y2O3 and Al2O3 are prepared and etched using several different techniques and the most efficient methods are identified. The microstructure and grain-boundary composition were examined by electron microscopy (SEM, TEM), electron diffraction and energy-dispersive X-ray microanalysis. A method has been developed to quantify microstructure consisting of elongated, rod like Beta-grains to discuss the interdependence between starting materials composition, processing condition, microstructure and resulting mechanical properties of dense Si3N4 materials. It is shown that post-sintering heat-treatment in air in the temperature between 1100-1450 oC results in substantial crystallisation of the glassy phase.

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References

THERMAL STRESS RESISTANCE TO FRACTURE AND ITS RELATION TO WITH RESISTANCE TO THERMAL FUTIGUE AND SHOCK

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APA: Copy

KALANTAR, M.. (2006). GRAIN BOUNDARY PHASE AND MICROSTRUCTURAL STUDY ON NON-OXIDE SI₃N_{4 CERAMICS. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 13(1), 129-152. SID. https://sid.ir/paper/3794/en}

Vancouver: Copy

KALANTAR M.. GRAIN BOUNDARY PHASE AND MICROSTRUCTURAL STUDY ON NON-OXIDE SI₃N_{4 CERAMICS. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2006;13(1):129-152. Available from: https://sid.ir/paper/3794/en}

IEEE: Copy

M. KALANTAR, “GRAIN BOUNDARY PHASE AND MICROSTRUCTURAL STUDY ON NON-OXIDE SI₃N_{4 CERAMICS,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 13, no. 1, pp. 129–152, 2006, [Online]. Available: https://sid.ir/paper/3794/en}

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