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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The present research focuses on the effects of different processing routes on the physical and mechanical properties of nano Ti(CN)-based cermets with metallic binders. Tungsten carbide (WC) is added as a secondary carbide and Ni-Co is added as a metallic binder to nano Ti(CN)-based cermet processed via conventional and spark plasma sintering (SPS). A systematic comparison of the composition and sintering conditions for different cermets’ systems was carried out to design novel composition and sintering conditions. Nano TiCN powder was prepared by 30 h of ball milling. The highest density of >98.5% was achieved for the SPS-processed cermets sintered at 1200 °C and 1250 °C for 3 min at 60 MPa of pressure in comparison to the conventionally sintered cermets at 1400 °C for 1 h with a two-stage compaction process—uniaxially at 150 MPa and isostatically at 300 MPa of pressure. Comparative X-ray diffraction (XRD) analysis of the milled powders at different time intervals was performed to understand the characteristics of the as-received and milled powders. Peak broadening was observed after 5 h of ball milling, and it increased to 30 hr. Also, peak broadening and a refined carbide size was observed in the XRD and scanning electron microscope (SEM) micrographs of the SPS-processed cermet. Transmission electron microscope (TEM) analysis of the milled powder showed that its internal structure had a regular periodic arrangement of planes. SEM base scattered electron (BSE) images of all the cermets primarily showed three major microstructural phases of the core–rim–binder with black, grey, and white contrast, respectively. With the present sintering conditions, a high hardness of ~16 GPa and a fracture toughness of ~9 MPa m1/2 were obtained for SPS-processed cermets sintered at higher temperatures.

Details

Title
Effect of Processing Routes on Physical and Mechanical Properties of Advanced Cermet System
Author
Verma, Vikas 1   VIAFID ORCID Logo  ; García-Hernández, Margarita 2 ; Luna-Domínguez, Jorge Humberto 3 ; Suárez-Domínguez, Edgardo Jonathan 4   VIAFID ORCID Logo  ; Samuel Monteiro Júnior 5 ; Ronaldo Câmara Cozza 6   VIAFID ORCID Logo 

 Aqila Technologies and Integration Solutions Private Limited, Department of Aerospace Design & Operations, Noida 201301, Uttar Pradesh, India; [email protected] 
 Instituto Politécnico Nacional, CECyT 16 “Hidalgo” Distrito de Educación, Salud, Ciencia, Tecnología e Innovación, Carretera Pachuca Actopan Km 1 + 500, San Agustín Tlaxiaca C.P. 42162, Hidalgo, Mexico; [email protected] 
 Facultad de Odontología, Universidad Autónoma de Tamaulipas, Av. Universidad esq. con Blvd. Adolfo López Mateos s/n, Tampico C.P. 89337, Tamaulipas, Mexico 
 Facultad de Arquitectura, Diseño y Urbanismo, Universidad Autónoma de Tamaulipas, Av. Universidad esq. con Blvd. Adolfo López Mateos s/n, Tampico C.P. 89337, Tamaulipas, Mexico; [email protected] 
 Centro Universitário das Faculdades Metropolitanas Unidas—FMU, Departamento de Engenharia Mecânica, Rua Afonso Braz 889, São Paulo 04511-011, SP, Brazil; [email protected] 
 CEETEPS—State Center of Technological Education “Paula Souza”, Department of Mechanical Manufacturing, Av. Antônia Rosa Fioravante 804, Mauá 09390-120, SP, Brazil; [email protected] 
First page
625
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
25716131
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3072274616
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.