Special Issue "New Progresses in the Development, Microstructure and Properties of Ceramic-Metal Composites (Cermets)"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced and Functional Ceramics".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editor

Prof. Dr. Ernesto Chicardi
E-Mail Website
Guest Editor
Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, University of Seville, Sevilla, Spain
Interests: cermets; cemented carbides; powder metallurgy; ceramics; combustion reactions; high entropy alloys

Special Issue Information

Dear Colleagues,

Ceramic–metal composites (cermets) are materials formed by at least a hard ceramic and a tough metallic binder phase, designed to achieve specific properties for particular applications when it is impossible to obtain them by monophasic materials.

Particularly, for the machining industry, the cermet cutting tools based on WC–Co (usually called hard metal) are widely employed due to their exceptional toughness and damage tolerance under cyclic loadings. However, they fail when it comes to the most demanding applications, such as high-speed machining and difficult-to-cut materials, because of their lack of chemical stability and oxidation resistance. Alternative to them are cermets based on TiC and Ti(C,N) with high wear resistance, chemical stability, and mechanical strength at high temperature. Nevertheless, to become a real alternative to WC–Co, their fracture toughness and damage tolerance must be significantly improved.

Therefore, this Special Issue is focused on contributions related to experimental and theoretical studies based on the design, production technologies, development, processing, synthesis, and characterization of cermets, with new clear progresses in their microstructure and/or properties that increase their potential role as materials to be successfully applied for high-speed machining or similar applications.

Special attention will be considered for cermets based on High Entropy Alloys (HEAs) and/or High Entropy Ceramics (HECs) and, in addition, contributions focused on other different cermets would also be welcome.

Prof. Dr. Ernesto Chicardi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Cermets
  • Cemented carbides
  • Hard metals
  • High entropy alloys
  • Binder
  • Ceramic
  • Titanium carbide
  • Titanium carbonitride
  • Powder metallurgy
  • High-speed machining

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Open AccessArticle
Performance of Ceramic-Metal Composites as Potential Tool Materials for Friction Stir Welding of Aluminium, Copper and Stainless Steel
Materials 2020, 13(8), 1994; https://doi.org/10.3390/ma13081994 - 24 Apr 2020
Cited by 4 | Viewed by 718
Abstract
The aim of the research was to disclose the performance of ceramic-metal composites, in particular TiC-based cermets and WC-Co hardmetals, as tool materials for friction stir welding (FSW) of aluminium alloys, stainless steels and copper. The model tests were used to study the [...] Read more.
The aim of the research was to disclose the performance of ceramic-metal composites, in particular TiC-based cermets and WC-Co hardmetals, as tool materials for friction stir welding (FSW) of aluminium alloys, stainless steels and copper. The model tests were used to study the wear of tools during cutting of metallic workpiece materials. The primary focus was on the performance and degradation mechanism of tool materials during testing under conditions simulating the FSW process, in particular the welding process temperature. Carbide composites were produced using a common press-and-sinter powder metallurgy technique. The model tests were performed on a universal lathe at the cutting speeds enabling cutting temperatures comparable the temperatures of the FSW of aluminium alloys, stainless steels and pure copper. The wear rate of tools was evaluated as the shortening of the length of the cutting tool nose tip and reaction diffusion tests were performed for better understanding of the diffusion-controlled processes during tool degradation (wear). It was concluded that cermets, in particular TiC-NiMo with 75–80 wt.% TiC, show the highest performance in tests with counterparts from aluminium alloy and austenitic stainless steel. On the other hand, in the model tests with copper workpiece, WC-Co hardmetals, in particular composites with 90–94 wt.% WC, outperform most of TiC-based cermet, including TiC-NiMo. Tools from ceramic-metal composites wear most commonly by mechanisms based on adhesion and diffusion. Full article
Show Figures

Figure 1

Back to TopTop