NIMP| COMPLEX COMPOSITES WITH ORGANIZED STRUCTURE

COMPLEX COMPOSITES WITH ORGANIZED STRUCTURE

Project Director: Dr. Petre BADICA

Title: Complex composites with organized structure

Acronim: CCOS

Contract 98PCE/2025

PN-IV-P1-PCE-2023-1692

Partners:

National Institute of Materials Physics, NIMP (Institutul Național de Cercetare Dezvoltare pentru Fizica Materialelor, INCDFM) (www.infim.ro)

Project Abstract

The project goal is to integrate and apply in an innovative manner the existing technologies (electrospinning, 3D printing, high magnetic field slip casting, infiltration, spark plasma sintering (SPS), floating zone process (FZ)) for fabrication of complex composite materials with organized structures. Focus will be on ceramic-ceramic, metal-ceramic composites without being limited to them. Green bodies are designed and manufactured. They have organized structures and are further processed to obtain the final composite by sintering or reactive sintering. A second new and innovative approach is to apply floating zone (FZ) for bonding/sintering within and between layers with geometrically organized patterns of the green bodies. Heating in FZ is local, i.e. on the small volume of the layer so that the composite material is fabricated step-by-step by adding processed layers one after another in an additive layer-by-layer sequence. Expectations are to understand processing-properties relationships and advantages and limitations of the proposed concept and approach targeting advancement of future sintering and additive manufacturing technologies.

Project team

INCDFM

Petre Badica

Andrei Alexandru-Dinu

Mihai-Alexandru Grigoroscuta

Mihail Burdusel

Cristina Bartha

Alina Marinela Badea (Ionescu)

Claudiu Locovei

Any Cristina Sergentu

Andrei Kuncser

Maria Monica Enculescu

Nicolae Dan Batalu

Ioana Dinca (Porosnicu)

Recent publications

Magnetic Levitation Performance of Superconducting Silver-Added MgB2 Bulks Obtained by In Situ Spark Plasma Sintering, Sait Barıs Güner, Petre Badica, Muralidhar Miryala, Adv. Eng. Mater. 2025, 27, 2501616 (https://doi.org/10.1002/adem.202501616).
Special Mechanical Properties of Diboride Ceramic Composites with complex microstructures: comparative analysis of three study cases, Badică Petre, Grigoroșcuță Mihai-Alexandru, Kuncser Andrei, Burdușel Mihail, Aldica Gheorghe, Vasylkiv Oleg, trimis la publicat in revista Journal of Engineering Sciences and Innovation (JESI).

Main results

In 2025. Various powders that will be used in the manufacture of composites with complex structures were structurally characterized, in terms of chemical composition, microstructurally, by thermal analysis, mass spectroscopy. Various defects or characteristic details were observed. 3D printing tests were carried out from the raw material powders with different geometries that will be used in the manufacture of complex composites in the next stages of the project. X-ray tomography was used to non-destructively highlight the defects from 3D printing. Also, a dense, superconducting composite of MgB₂ with Ag inclusions was obtained by arc sintering (in Eng. Spark Plasma Sintering) and characterized, which presents high values, of practical interest, of the magnetic levitation force, the results being published in Adv. Eng. Mater (https://doi.org/10.1002/adem.202501616).

Cognitive and socio-economic impact

The project aims to obtain new composite materials with architectures leading to improved functional performance or allowing synergies between properties, offering new possibilities in achieving more efficient or new applications. In 2025: MgB₂-Ag composite has shown high values of levitation force.

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