BrainMap

Mr. Nicanor Cimpoesu

Professor

Professor - UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI

Other affiliations

Researcher - UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (Romania)

Researcher | Teaching staff | Scientific reviewer | PhD supervisor

Prof. habil. Phd. eng. Nicanor Cimpoesu defend his thesis “Research on the properties of internal friction of certain metallic alloys with shape memory” in 2010 is a specialist in Electron Microscopy and chemical analysis of materials. The author has the Hirsh factor 18 in 2023 (WoS), 19 (1236 citations on Google Scholars) and 18 (1070 on Scopus – H index: 12 for citations without the citations of all the co-authors). Last year was the coordinator of an European research project : CeLaTeBa (SURPF2301300009) through H2020 Horizont project 'Solar facilities for the european research area Third phase – SFERA II. Work on biodegradable metallic materials , development and processing of metal materials, advanced ceramics, smart materials and shape memory alloys, corrosion resistance, microstructure investigation and chemical composition analysis. and interested in solid materials for batteries.

Curriculum Vitae (28/09/2019)

Expertise & keywords

New high entopy alloys/composites with superior mechanical and corrosion resistance characteristics, for high temperature applications Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1048 2014 - 2017

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU METALE NEFEROASE SI RARE - IMNR (RO); UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); RANCON S.R.L. (RO); CENTRUL DE CERCETARE PROIECTARE SI PRODUCTIE REFRACTARE S.A. (RO)

Affiliation: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO)

Project website: http://www.headurcor.pub.ro

Abstract:

This project aims to develop metals plastic deformation tools (rolls and bearings mill) processed from an innovative metallic material, high entropy alloys(HEA) and composites. The project is included in the priority research field 7 thematic 7.1.4 Advanced materials for competitive products export.

The project proposes a new approach to the manufacture of plastic deformation tools by replacing steels and superalloys conventional materials with HEA alloys and composites with superior technological characteristics. The raw materials for HEA processing consist in metallic metals and wastes.

The project meets the objectives of the program as follows:

1. The consortium constitution (two prestigious universities, a National Institute for R-D and two SMEs in the materials field) and the joint research activities addressing the Stimulation of research - development activities conducted in partnership objective.

2. By realize tools with enhanced features, processed from metallic materials using new and advanced technologies, the project is part of the Applied research joining requirements to economical environment demands by developing original products, advanced technologies, competitive and with major socio-economic impact objective.

3. Co-financing significant research expenses (16.67%) and active involvement of SMEs contribute to Stimulating private sector expenditure growth in R & D objective.

4. Acquisition of advanced equipment and integration of PhD students in research teams, contribute to Development of infrastructure and human resource skills objective.

Scientific and technical objectives of the project are:

i. Processing of high entropy alloys (HEA) and composites with superior physical and mechanical properties by induction melting/casting, respectively by mechanical alloying/ pressing/ sintering; ii. Obtaining og rolls and bearings mills from HEA alloys/composites; iii. Obtaining technologies for HEA alloys/composites; iv. Demonstrating and verifing the technologies and tool prototypes at pilot level.

The novelty and originality of the project are: a. new metallic materials for plastic deformation tools developing; b. alloys/ composite systems selection with preset technological features.

The main results of the project are: 1. Innovative technologies for obtaining HEA alloys/composites with predefined characteristics; 2. Mill rolls and bearings - prototype tools with superior technological characteristics; 3. Patent applications for products/ technologies; 4. Dissemination: articles in ISI journals, conferences, workshops, seminars.

Project impact/potential benefits: i. strengthening the cooperation between research units and companies; ii. development of research infrastructure and increase capacity of the partners to participate in R&D national and international projects; iii. increasing the competitiveness of SMEs through the tools manufacturing from new materials with high added value (alloys/composites), increased turnover by 5-10%. iv. patents exploitation; v. social impact by increasing the quality of life (reducing the amount of metallic waste containing potentially toxic metals, increasing labor productivity and safety of plastic deformation sections), creation of new working places; vi. environmental impact: metallic waste exploitation, green technology for obtaining alloys / composites, a waste decrease from recycling used tools.

Modular system of multifunctional elements with self-adapting displacement Call name: Joint Applied Research Projects - PCCA-2011 call, Type 1
PN-II-PT-PCCA-2011-3.1-0174 2012 - 2016

Role in this project:

Coordinating institution: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI

Project partners: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); R&D CONSULTANTA SI SERVICII S.R.L. (RO); UNIVERSITATEA "DUNAREA DE JOS" (RO)

Affiliation: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO)

Project website: http://www.pcca-2011-3.1-0174.sim.tuiasi.ro/?lang=ro

Abstract:

The project describes the manufacturing process of an original multifunctional device, generating linear displacements for self-adaptive compensation of the clearance caused in some machine parts under functioning conditions. The prime novelty of the project are the active elements produced by Fe-Mn-Si shape memory alloys (SMAs) with ultrafine/nanometric structure, obtained by severe plastic deformation procedures, meant to enable both fragile-ductile transition and high temperature stability through structural heredity. Fe-Mn-Si SMA elements will undergo “training” thermomechanical processes which induce the final behavior of the materials with temperature or stress variations, thus acquiring a quantifiable multifunctional potential (expressed via work). Strain recovery by shape memory effect, under prescribed temperature conditions, allow displacement development as an effect of the deformation of lamella and/ or disk-like elements. The manufacturing technology of the elements includes the setting of two “shapes” by conventional plastic deformations. The “hot” shape corresponds to the parts deformed within the austenitic domain through deep drawing with a curvature radius r0 which depends on the shape memory properties of the material, while the “cold” shape involves a deformation in martensitic domain with a curvature radius r > r0, inversely to hot deformation. With temperature increase, trained elements behave like actuators which recover their “hot” shape by work development, according to an accurate linear self-adapting displacement. The association of trained elements in the framework of coupled modules provides flexibility and multifunctional character to the developed system. The general purpose of the project is to promote an advanced technological solution for producing some elements with role of self-adaptive actuators and for their assembling within an original functional-constructive variant, able to generate accurate controlled displacements.

The study of polymer-laser radiation interactions in controlled atmosphere. Laser ablation nanostructured thin films layers. Applications. Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0650 2011 - 2016

Role in this project:

Coordinating institution: UNIVERSITATEA ALEXANDRU IOAN CUZA IASI

Project partners: UNIVERSITATEA ALEXANDRU IOAN CUZA IASI (RO)

Affiliation: UNIVERSITATEA ALEXANDRU IOAN CUZA IASI (RO)

Project website: http://spectroscopy.phys.uaic.ro/laser-ablation-project-2011.html

Abstract:

Laser-induced surface polymer deformation, laser-surface polymer relief grating formation (SRG), laser- ablation both of photochemical polymer but also of doped polymer processing, pulse laser deposition (PLD) have been the object of growing interest due to potential in nonlinear optics (NLO), laser direct patterning (LDP), fuel in the micro laser plasma ablation satellite propulsion thruster (μALPT), and biocompatible metal-doped polymers. The laser polymer ablation mechanism is a complex interrelated system where the photochemical and phototermal reactions are very important. The photopolymers which interaction with the coherent laser beam create a diffraction pattern and then by means of intermolecular forces transmit the pattern to the all their surrounding neighbors. This pattern is the active part of the self-organized structure ensuring the exchange information inside the locally domain. The microstructure determination of the photopolymers and the presence of surface relief gratings and micro/nanostructured aggregates in thin films and solutions will be evidenced by fluorescent and absorption UV-Visible spectroscopy, FT IR spectroscopy, AFM technique, SEM and XRD analyze. The evolution and dynamics of the well structured plasma plume will be investigated by means fast ICCD image plasma plume, laser induce fluorescence (LIF), particle image velocimetry (PIV, time-resolved shadowgraphy & interferometry and Langmuir probe electrical plasma diagnosis.

Novel method for improving shape memory properties by atomic migration controlling Call name: Exploratory Research Projects - PCE-2012 call
PN-II-ID-PCE-2012-4-0033 2013 - 2016

Role in this project:

Coordinating institution: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI

Project partners: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO)

Affiliation: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO)

Project website: http://www.novelsmmigratom.tuiasi.ro

Abstract:

The project aims to analyse the limits up to which atomic migration allows the thermally induced reversion to parent phase of stress-induced martensite (SIM), in porous Fe-base shape memory alloys (SMAs). The experiments will be performed on hot-rolled (HR) specimens obtained by powder metallurgy (PM) processing, comprising pressing and sintering as blended elemental powders mixed with various amounts of mechanically alloyed (MA) powders (0-40%MA). Technically, HR PM-MA specimens will be cut by spark erosion into 3 configurations: (i) an original shape for tensile-calorimetric (Tens-DSC) experiments; (ii) “dog bone” profile for tensile tests (Tens) and tensile-X-ray diffraction (Tens-XRD) experiments and (iii) lamellas (Lam) for dynamic mechanical analysis (DMA) tests. All profiled specimens will be solution treated between 800 and 1200 degrees Celsius. After determining tensile behaviour of Tens specimens by means of the failure curves, Tens-DSC and Tens-XRD specimens will be pre-strained between 0-5%, in order to form SIM. Phase structure of Tens-XRD specimens will be analysed on XRD patterns and by optical and electron microscopy, while atomic migration will be investigated by energy dispersion of X-ray and focus ion beam (EDX-FIB). During thermally induced reversion of SIM, thermodynamic response will be analysed by DSC, on Tens-DSC specimens, while thermomechanical response will be emphasized by DMA, on Lam specimens, subjected to strain sweeps at various frequencies.

Growth and characterization of thin shape memory films with high damping capacity through pulsed laser deposition technique Call name: Postdoctoral Research Projects - PD-2011 call
PN-II-RU-PD-2011-3-0186 2011 - 2013

Role in this project:

Coordinating institution: Universitatea "Alexandru Ioan Cuza" Iași

Project partners: Universitatea "Alexandru Ioan Cuza" Iași (RO)

Affiliation: Universitatea "Alexandru Ioan Cuza" Iași (RO)

Project website: http://spectroscopy.phys.uaic.ro/memoria-formei-project-2011.html

Abstract:

Among the prevalent high damping metallic materials, shape memory alloys (SMAs) could be one of the most promising candidates due to their high damping capacity arising from the reversible martensitic phase transition (MT) and the stress induced reorientation of martensite variants. Damping materials have many applications in all domains connected to amortizations, energy dissipation or structures rehabilitation. Thin shape memory alloys films were used in different micro-actuators applications to exhibit memory effect but not until now as layers for damping capacity improve. The project propose few copper based shape memory alloys (CuMnAl, CuZnAl, CuAlNi with nano-particles additions) as targets for a pulsed laser deposition (PLD) equipment to improve a superelastic material properties. PLD process of SMAs represents a difficult target concerning the complex processes that occur during this technique but the resulted layers have very good wearability and adhesion properties. Using thermal, microstructural, chemical and mechanical analysis methods (DSC, DIL, DMA, SEM, AFM, XRD, XPS) the shape memory alloys as bulk for targets, the superelastic substrate and after deposition the new material obtained will be investigates to establish the modifications between these cases of the material. The application author experience in memory effect field and especially in high damping shape memory alloys and the knowledge of the mentor in plasma field sustain this theme finalization.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator	Download (246.5 kb) 31/05/2017
List of research grants as partner team leader
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects