Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites-Reference-Cited by-同舟云学术

Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites

Published:2022 Issue:1 Volume:54 Page:1-9
ISSN:0350-820X
Container-title:Science of Sintering
language:en
Short-container-title:SCI SINTER

Author:

Gürcan Kübra¹,Ayas Erhan¹,Yurdabak İlker¹,Güngören Safa¹

Affiliation:

1. Department of Material Science & Engineering, Eskişehir Technical University, Eskişehir, Turkey

Abstract

In the present study, the addition of Y3Al5O12 (YAG) into the ZrB2-SiC composites was investigated. Composites were densified by spark plasma sintering (SPS) at 1850?C under a uniaxial pressure of 50 MPa for 20 min. Microstructural evaluation and mechanical properties were evaluated with a various content of YAG (1-5 wt%). Obtained results showed that sintering mechanism changed from solid state to liquid phase sintering with incorporation of YAG. The highest density (99.81 % RD) and fracture toughness (6.44 ? 0.23 MPa.m1/2) were obtained for the composite containing 5 wt% YAG after the SPS process. Although hardness and elastic modulus of samples were decreased with the increasing of YAG amount, measured values were comparable with the literature.

Publisher

National Library of Serbia

Subject

Materials Chemistry,Metals and Alloys,Condensed Matter Physics,Ceramics and Composites

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