ADVANCED AND NANOSTRUCTURED MATERIALS

Technology consultant development of nanostructured powder synthesis technologies:

  • synthesis of ceramic nanopowders and inorganic-organic hybrids by hydrothermal / solvotermal process (nanostructured powders based on: pure and doped TiO2, pure ZrO2 and doped with Y2O3 and rare earths, ZnO doped with Ag or Al, hydroxyapatite-based hybrid powders and synthetic or natural polymers);
  • synthesis of ceramic and composite powders by hydrolytic processes (precipitation and co-precipitation): pure ZrO2-doped and doped with Y2O3 and rare earth powders, composite metal-ceramic powders with core / shell structure, etc.

Technology consultancy for obtaining thin films.

Technological consultancy for nanostructured powder processing.

Thermal analysis of advanced materials by differential scanning calorimetry.

Granulometric analysis and electro-kinetic potential of nanoparticles.

Structural analysis of advanced and nanostructured materials by FT-IR and UV-VIS spectroscopy.

Technology Transfer Services (Technological Assistance, Technological Audit)

in the field of nanomaterial synthesis in collaboration with the Technology Transfer Center for Advanced Materials – CTT AVANMAT.

Technological consulting regarding metal matrix composite materials

synthesis- in-situ elaboration of metal matrix composites reinforced with ceramic particles through novel and efficient methods.

Technological consulting regarding the obtaining of thin films based on metallic alloys.

  • Advantages: films with low thickness and enhanced physical-chemical and structural properties are obtained; economical and eco-friendly processes, with reduced energy consumption and inexpensive raw materials (salts, oxides); regular experimental conditions, low temperature processes, common equipments. Thin films for various applications (corrosion and tribological protective coatings, solar energy harvesting) by electrochemical deposition from aqueous solutions. Optimization of electrochemical processes. Development of laboratory and pilot level electrochemical deposition installations.

Technological consulting for technologies of recycling of nonferrous metals.

Development of innovative and ecological technologies for the processing of various types of wastes and the recycling of nonferrous and precious metals by hydrometallurgical, pyrometallurgical and electrochemical methods.

Technological consulting for technologies of obtaining reactive metals and alloys

  • by melting in electric and induction furnaces, in vacuum or controlled atmosphere (obtaining multi-component high-entropy alloys -HEAs, AB2-23,5Ti11,2Zr38,3Cr27Mn and AB5-64,1Ni33,3Mn2,6Al type hydrogen storage alloys, ecological soldering and brazing alloys based on Ag, Cu, Sn, with no contents of Cd, Pb or other toxic metals, copper and copper alloys, various types of steel, including stainless steels). Advantages: very good physical-mechanical and technological characteristics (HEAs, soldering, brazing, joining), good hydrogen storage capacities, high efficiency and stability in absorption/desorption cycles, low temperature and pressure hydrogen absorption, wide range of applications in various industrial domains (electric and electronic equipments, food industry equipment, mechanical engineering etc.). Obtaining micro and nanostructured alloys by rapid solidification (melt-spinning). Thermodynamic and kinetic assessment of alloy systems and synthesis processes. Design of laboratory experimental installations.

Consultanță tehnologică pentru tehnologii de obținere metale reactive și aliaje

  • by molten salts electrolysis (technologies for obtaining Li and Li-Na, Al-Li, Pb-Ca alloys by electrochemical co deposition in chlorinated and oxifluorochlorinated media; technologies for obtaining lanthanides (Ce, Nd, Pr, Sm) and Al-RE alloys, mischmetall, Mg-Nd, Nd-Fe-B, by electrolysis in oxifluorurated media, technologies for obtaining rare metals, titanium, zirconium, refractory metal alloys, by unconventional electrochemical techniques – ionization-electrochemical reduction in chlorine media). Advantages: continuous process, high energy and current efficiency (over 90%), use of inexpensive and common raw materials, high purity obtained products (min.99%), alloy obtaining in a single technological step, eco-friendly technological processes.

Analysis Laboratory Services

The Analysis Laboratory can offer a wide range of services, such as:

  • establishing the materials and products chemical composition and structure.
  • determination of major elements and impurities in metals, alloys, metal powders, inorganic chemicals, ores, ceramic, refractory, composite, slag, minerals;
  • determination of rare earth contents in different matrices in metallic and non-metallic products;
  • determination of environmental pollution: water, soil;
  • thermal analysis for different types of materials.

Laboratory analysis can provide a wide range of services such as:

X-RAY DIFFRACTION

RENAR accredited laboratory (certificate LI No.1056/16.04.2015) for qualitative phase analysis by X-ray powder diffraction of inorganic polycrystalline materials.

Equipment name: Bruker-AXS D8 ADVANCE Diffractometer, Bragg-Brentano method for X-ray diffraction on powders having a CuKα radiation source and a SOL X detector, in vertical geometry θ – θ. The software SLEVE + and PDF-4+ database.

Applications:

  • Crystalline phase identification and quantification;
  • Crystallinity determination;
  • Average crystallites size determination;
  • Micro deformation determination;
  • Crystalline structure characterization: indexing, crystallization system, cell parameters.

Interest fields:

  • Chemistry;
  • Metals and alloys;
  • Geology – Mineralogical analyzes: asbestos, rocks, clays, zeolites, ores;
  • Environmental protection: industrial waste, by-products;
  • Construction materials;
  • Pigments;
  • Inorganic fertilizers.

ATOMIC ABSORPTION SPECTROMETRY

RENAR accredited laboratory (certificate LI No.1056/16.04.2015) for content determination of Cd, Ca, Pb, Au and Ag, by flame atomic absorption spectrometry from ores, concentrates and technological solutions.

Other elements in the non-accredited system can be determined.

Atomic absorption spectrometry ensures the quantitative determination of metal contents in a wide range of concentrations.

Equipment name: Atomic absorption spectrometer – AAS ZEEnit 700, Analytic Jena AG, with:

  • flame;
  • graphite furnace for liquid samples;
  • hydride and cold vapor generator.

Quantitative determination of metal content in a wide range of concentrations: from ppb to tens of %, using several measurement techniques.

Flame module equipped with double beam optics and background correction, for achieving determinations in both the absorption and atomic emission for alkaline metals. With this module, the following elements can be determine: Cu, Co, Cd, Pb, Sb, Zn, Ni, Fe, Cr, Mg, Ca, Na, K, Rb, Li, Sr, Ga, In, such as Au, Ag, Pt, Pd, Rh.

Graphite furnace module determine traces ad ultra- traces of metals.

Hydride and cold vapor generator have low detection limits for elements hydrides As, Bi, Sb, Se, Sn, Te.

THERMAL ANALYSIS SetSys Evolution

SETSYS Evolution, Setaram, France, can perform DSC/TG thermal analysis. Specification: temperature range between 20°C – 1600°C; heat flow 1°/min – 40°/min; gases: argon, helium or air. The amount required for an analysis is approximately 20 mg. Alumina crucibles are used.

Applications:

  • determination of thermal behaviour of metals, alloys or oxides;
  • determination of heat flow;
  • kinetic studies.

MINERAL ANALYSIS BY OPTICAL MICROSCOPY in polarized, reflected and transmitted light, on the following types of samples: minerals; sedimentary rocks, metamorphic rocks, magma rocks, ore deposits, mining concentrates; slags and volatile dusts in the metallurgical industry; etc.

METALLOGRAPHY BY OPTICAL MICROSCOPY on the following types of samples: metals, special alloys, metallic composites, hybrid composites, ceramic and metal coatings, semiconductors.

VICKERS MICROHARDNESS tests

SCANNING ELECTRON MICROSCOPY SEM-EDAX

CHEMICAL ANALYSIS Volumetry and gravimetry

Laboratory perform quantitative and semi-quantitative determinations using the following methods:

VOLUMETRY:

 

Volumetry by neutralization reactions

 

Acidimetry

• dosage of strong acids with strong bases,

Alkalimetry

• dosage of strong bases with strong acids

• dosage of free ammonia;

• dosage of free ammonia from ammonia salts;

 

Volumetry by redox reactions

 

Permanganometry

• Ca dosing

• Ca activ dosing

• Mn (metoda Volhard) dosing

 

Iodometry

• Sn dosing

• sulphides dosing

• Sb dosing

 

Bicromatometrie

• Fe dosing

 

Bromatometrie

• Sb dosing

 

GRAVIMETRY:

 

Gravimetric dosing

Sn, Si, Ba, SO42-, CO2,

Moisture content

 

Calcination loss, carbon content, volatile substances, ashes.

 

Metal Resource Valorisation Technologies Services

Development of a new vision of the by-products (slag, gypsum, accompanying microelements) and residual energy, respectively: promoting efficient processes of stabilization of dangerous substances in (depositing) materials that are to be deposited; management for microelements (with high economic value) existing in wastes: In, Ge, V, Ga, Sn, etc.; more advances recovery of the process heat; slag classifying as non-dangerous wastes.

Use of simple and efficient procedures for waste processing and characterization: control of waste generation; adaption of available processes for a wide variety of wastes; mechanical, automated or chemical dismantling; New equipments for melting and recovery; new intensive hydro-electrical processes; on-line analysis (XRF).

Application of the newest identification techniques of waste waters: new equipments, software, characterization and analysis techniques of the waste waters; creating of a map of water pollution on the entire territory; application of new techniques for water purification, oxidation with ultraviolet rays, electro-plasma, electro-flotation, electro-coagulation; determining the effect of impure water with metallic ions on the health of people and the social effects caused by the lack of pure water sources.

Use of the best technologies for the exploitation and processing of raw materials (envisaged in the european document „Best Available Technologies – BAT”), such as the following will be assured: metals recovery from raw materials at yields greater than 95 %; promoting the vertical development strategy of the same company: mining – metallurgy – recycling – goods in order to make possible an easy implementation of environment, material and risk management etc.

Application of the newest techniques and technologies of reuse / recycling / recirculation of the metals and materials from wastes, according to “bat” for nonferrous metallurgy .

CTT AVANMAT CENTRE Services

The Technology Transfer Centre for Advanced Materials – CTT AVANMAT provides specific services in the field of technological transfer:

  • consultancy in the field of intellectual property protection;
  • technological transfer in the field of advanced materials and nanomaterials (technological information, technical assistance for procurement, technology transfer);
  • assistance and consultancy for technology implementation (assistance in transfer of knowledge and skills, technology watch, consultancy, research);
  • verification and testing programs (evaluation and technological audit, assistance and consultancy, design of reference systems, verifications and tests, reporting);
  • resource planning (business plan, market analysis, company strategy, cost and investment assessment);
  • technical and economic analysis (market studies, bid updates);
  • dissemination (digital support, leaflets, posters, workshops).

The AVANMAT Publishing House provides publishing services for books, magazines, brochures, event publications, business cards, flyers, posters, etc.

În cadrul centrului funcţionează Editura AVANMAT care oferă servicii de editare cărţi, reviste, broşuri, publicaţii cu ocazia unor evenimente, cărţi de vizită, foi cu antet, fly-ere, pliante, prezentări cu spiră, postere etc.

HighPTMet Services

ELECTRON BEAM INSTALLATION

  • manufacturing high temperature ceramic functionally graded materials;
  • manufacturing high entropy alloys and composite materials (including thin films depositions for the AlFeNiMnCrMe1Me2 B,C system, with high mechanical properties at elevated temperatures);
  • manufacturing biocompatible coatings based on HAP, beta-TCP;
  • manufacturing inter-metallic compounds based layers;
  • studies regarding the structure-properties correlation in micro and nanostructured materials based on non-ferrous metals, inter-metallic compounds and composites.

THERMAL EVAPORATION DEPOSITION INSTALLATION

  • deposition of thin films for solar cells of CIS (CuInSe, CuInSeTe, CuInGaSe) and CZTS (CuZnSnS, CuZnSnSSe) systems, including on flexible substrates;
  • deposition of thin films of high entropy alloys (HEA) from the CuFeNiAlCrTi system with anti-corrosion and wear-resistant properties for high temperature applications;
  • deposition of metallic conductive layers for sensors;
  • deposition of organic and hybrid structures on metallic, textile and paper substrates.

CONTINUOUS AND DISCONTINUOUS FLOW AUTOCLAVE

  • oxidation-reduction processes (oxidation of the non-ferrous metal sulphides from sulphide concentrates in aqueous medium, acidic or basic, at high temperatures and pressures in oxidative atmosphere);
  • reducing the concentration of Fe in Cu and Zn solutions by precipitation;
  • non-ferrous metals solubilisation from sub-products (fly dust, slags, red mud) which result in non-ferrous metals primary and secondary extractive metallurgy, and from electronic and electric scraps;
  • obtaining carbon from vegetal bio-mass.

SPRAY – DRYER

  • microencapsulation;
  • drying of hybrid organic-inorganic nanocomposites;
  • rapid drying and control of flow-ability of nanocrystalline powders obtained by wet chemical procedures.

ICP-OES SYSTEM WITH LASER ABLATION FOR SOLIDS ANALYSIS

  • analysis of minor or toxic elements in nanobiomaterials, foods, pharmaceuticals, sediments;
  • analysis of heavy metals in soils, waters or wastes
  • analysis of major elements and impurities in polymers, oxides, salts;
  • analysis of major, minor and trace elements in metals, alloys, geological samples, ores;
  • surface analysis with laser ablation.

HYDROTHERMAL SYNTHESIS AUTOCLAVE

  • synthesis of nanocrystalline powders: YTZP, YSZ, doped ZrO2 for high T coatings; doped TiO2 for photocatalytic films; Ag-ZnO antiseptic/antifungal; doped ZnO/TiO2 for superhydrophobic coatings; transition metal doped ZnO/TiO2 for magnetic films; doped-BST for gas sensors; doped PZT for piezoelectric materials; core-shell composite powders; other nanopowders on demand.

HIGH PRESSURE AUTOCLAVE

  • synthesis of nanocrystalline powders: YTZP, YSZ, doped ZrO2 for high T coatings; doped TiO2 for photocatalytic films; Ag-ZnO antiseptic/antifungal; doped ZnO/TiO2 for superhydrophobic coatings; transition metal doped ZnO/TiO2 for magnetic films; doped-BST for gas sensors; doped PZT for piezoelectric materials; core-shell composite powders; other nanopowders on demand.
  • synthesis of nanocrystalline powders at high pressures and temperatures up to 180°C for other applications (on demand);
  • studies regarding the mechanism and kinetics of the reaction between inorganic and organic components in solution at high pressures and low temperatures;
  • isostatic press for nanopowders consolidation.

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