Mărioara Abrudeanu
YOU?
Author Swipe
View article: Assessment of Volatile Radionuclide Release in the ALFRED Lead-Cooled Fast Reactor
Assessment of Volatile Radionuclide Release in the ALFRED Lead-Cooled Fast Reactor Open
This study reviews the release potential of volatile radionuclides in the ALFRED reactor, providing data for source-term evaluations under both normal and postulated accident conditions. Using empirical Henry’s law relations and radionucli…
View article: The Influence of Accidental Overheating on the Microstructure and Hardness of the Inconel 718 Alloy
The Influence of Accidental Overheating on the Microstructure and Hardness of the Inconel 718 Alloy Open
The Inconel 718 alloy is a nickel-based superalloy that can be strengthened through precipitation hardening. Due to its exceptional mechanical properties, high corrosion resistance, and good workability, it is particularly suitable for app…
View article: Radiocarbon Dating of Mortar Fragments from the Fresco of a Romanian Monastery: A Field Study
Radiocarbon Dating of Mortar Fragments from the Fresco of a Romanian Monastery: A Field Study Open
The stone Ensemble from Corbii de Piatrǎ Romania arouses a continuous scientific interest, with the final goal being to obtain an exhaustive and multidisciplinary package of results that will become the support of an extensive restoration …
View article: Evaluation of the Zirconium Hydride Morphology at the Flaws in the CANDU Pressure Tube Using a Novel Metric
Evaluation of the Zirconium Hydride Morphology at the Flaws in the CANDU Pressure Tube Using a Novel Metric Open
The Zr-2.5%Nb alloy used to manufacture the pressure tubes for the CANDU 600 power plant experiences continual corrosion when the reactor’s fuel channels are functioning normally. Analysis of the hydrogen accumulation circumstances, the cr…
View article: Trace-level impurity quantification in lead-cooled fast reactors using ICP-MS: Methodology and challenges
Trace-level impurity quantification in lead-cooled fast reactors using ICP-MS: Methodology and challenges Open
Lead-cooled fast reactors (LFR), such as the ALFRED Demonstrator, are pivotal in advancing nuclear technology. This study presents a method for quantifying trace-level impurities generated through various nuclear reactions in lead coolant.…
View article: Effect of Preliminary Nitric Chemical Treatment on Corrosion Behavior of 316 Stainless Steel in Chloride Solution Contain Glucose
Effect of Preliminary Nitric Chemical Treatment on Corrosion Behavior of 316 Stainless Steel in Chloride Solution Contain Glucose Open
The aim of this study is to analyze the impact of a preliminary nitric acid chemical treatment on the corrosion of 316 stainless steel particularly used in implant applications, in a 0.9% chloride solution containing glucose. The steel 316…
View article: Participation of Polymer Materials in the Structure of Piezoelectric Composites
Participation of Polymer Materials in the Structure of Piezoelectric Composites Open
This review explores the integration of polymer materials into piezoelectric composite structures, focusing on their application in sensor technologies, and wearable electronics. Piezoelectric composites combining ceramic phases like BaTiO…
View article: Experimental Research on the Influence of Repeated Overheating on the Thermal Diffusivity of the Inconel 718 Alloy
Experimental Research on the Influence of Repeated Overheating on the Thermal Diffusivity of the Inconel 718 Alloy Open
The Inconel 718 superalloy, a precipitation-hardenable material, is of particular interest for applications involving components operating under extreme conditions due to its excellent mechanical properties, high corrosion resistance at te…
View article: The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy
The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy Open
The precipitation-hardenable nickel-based superalloy Rene 41 exhibits remarkable mechanical characteristics and high corrosion resistance at high temperatures, properties that allow it to be used in high-end applications. This research pap…
View article: Interdisciplinary Research on Medieval Fresco Subjected to Degradation Processes in the Corbii de Piatră Cave Church
Interdisciplinary Research on Medieval Fresco Subjected to Degradation Processes in the Corbii de Piatră Cave Church Open
This paper presents research on the degradation processes of the fresco painting in the cave church of Corbii de Piatră Hermitage under the influence of meteoric infiltration water and environmental factors. The medieval fresco dates from …
View article: The Characterization of a Fragment of a Medieval Fresco from Corbii de Piatră Cave Church
The Characterization of a Fragment of a Medieval Fresco from Corbii de Piatră Cave Church Open
The fresco of the Corbii de Piatră Cave Church, dating from the end of the 13th century and the beginning of the 14th century, is applied to the sandstone wall. The degradation of the fresco on large surfaces, with many areas of detachment…
View article: Mechanical Properties and Thermal Shock Behavior of Al2O3-YSZ Ceramic Layers Obtained by Atmospheric Plasma Spraying
Mechanical Properties and Thermal Shock Behavior of Al2O3-YSZ Ceramic Layers Obtained by Atmospheric Plasma Spraying Open
Ceramic coatings have many advantages for industrial and medical applications due to their exceptional properties. Ceramic coatings with a thickness of approximately 45 μm, after grinding, were grown using a robotic arm that used the atmos…
View article: Structure and Heat Transfer in Zircaloy-4 Treated at High Temperatures
Structure and Heat Transfer in Zircaloy-4 Treated at High Temperatures Open
Zircaloy-4 has an important role in the construction of generation III nuclear reactors. An important application is the fuel element sheath, which must have excellent corrosion resistance in the working environment, adequate mechanical ch…
View article: Characterization of Archaeological Artefacts Using Methods Specific to Materials Science: The Case Study of Dacian Ceramics from 2nd c. BC to 1st c. AD
Characterization of Archaeological Artefacts Using Methods Specific to Materials Science: The Case Study of Dacian Ceramics from 2nd c. BC to 1st c. AD Open
Combined analysis methods such as optical microscopy (OM), cathodoluminescence (CL) microscopy, X-ray diffraction (XRD), and scanning electron microscopy–energy dispersive X-ray spectrometry (SEM–EDX) have made it possible to obtain the fi…
View article: Activation of CuAlNi SMAs using a solar energy
Activation of CuAlNi SMAs using a solar energy Open
"Shape memory alloys are special materials that can perform mechanical work during martensitic transformation. CuAlNi shape memory alloys have gained attention based on them high transformation temperatures domain and can be considered as …
View article: The influence of thermal shock t high temperature on Zy-4 alloy
The influence of thermal shock t high temperature on Zy-4 alloy Open
"Zy-4 alloy is a basic material in the construction of the current generation nuclear reactors. Due to the diffusion processes and the chemical reactions that take place, the corrosion in air at high temperatures of the zircaloy-4 alloy de…
View article: Influence of thermal shocks at high temperatures on microstructure and hardness of RENE 41 alloy
Influence of thermal shocks at high temperatures on microstructure and hardness of RENE 41 alloy Open
Rene 41, super alloy nickel base with aging hardening, presents an exceptional strength at high temperatures, find used at temperatures above 871°C. After aging, the microstructure of the alloy is made up of solid solution and precipitates…
View article: Preliminary results on microstructure profile of Cu-based shape memory alloy
Preliminary results on microstructure profile of Cu-based shape memory alloy Open
Shape memory alloys represent a perfect solution for noiselessly actuation with possibility of natural activation without extra energy consume. Copper-based shape memory alloy represent a cheap solution of classical Nitinol. After melting …
View article: The Influence of Thermal Shocks on the Thermophisics Properties of the Zircaloy-4
The Influence of Thermal Shocks on the Thermophisics Properties of the Zircaloy-4 Open
This paper presents the researches on the influence of thermal shocks on the heat transfer properties of the zircaloy-4, now used in fuel element cladding of third generation nuclear reactors. Thermal shock testing was performed using sola…
View article: Investigation of the Fracture Mechanics Properties of Small Tubes from Oxide Dispersion Strengthened Steels
Investigation of the Fracture Mechanics Properties of Small Tubes from Oxide Dispersion Strengthened Steels Open
The paper presents one part from the RATEN ICN contribution to the European FP7 MatISSE Project objectives, which is focused on the fracture mechanics properties of small tubes made from ODS steels (Oxide Dispersion Strengthened steels). T…
View article: The Study of the Mechanical Properties of Small Tubes Made from Oxide Dispersion Strengthened Steel by Using the Ring Tension Tests
The Study of the Mechanical Properties of Small Tubes Made from Oxide Dispersion Strengthened Steel by Using the Ring Tension Tests Open
The paper aims to investigate the mechanical properties of tubes having a small diameter and made from new steels called ODS steels Oxide Dispersion Strengthened steels). These new materials are candidate materials for fuel claddings in th…
View article: Heating to thermal shock of Cu-based SMA using a solar concentrator
Heating to thermal shock of Cu-based SMA using a solar concentrator Open
Solar energy represents a renewable energy which is one of the most expected to breakthrough in the next years in many application fields, as a heating source. It is expected that we can use solar energy in order to activate special materi…
View article: The Influence of the High Temperatures Thermal Shocks on the Microstructure and Harness of Zircaloy-4 alloy
The Influence of the High Temperatures Thermal Shocks on the Microstructure and Harness of Zircaloy-4 alloy Open
This study aims at determining the influence of thermal shocks at high temperatures, over the allotropic temperature, on the microstructure, composition and hardness of the Zy-4 sheath. The thermal shocks have been applied at the temperatu…
View article: Preliminary Results on Thermal Shock Behavior of CuZnAl Shape Memory Alloy Using a Solar Concentrator as Heating Source
Preliminary Results on Thermal Shock Behavior of CuZnAl Shape Memory Alloy Using a Solar Concentrator as Heating Source Open
It is highly accepted that martensitic transformation can be induced by temperature variation and by stress solicitation. Using a solar concentrator, we manage to increase the material surface temperature (till 573 respectively 873 K) in v…
View article: Elaboration And Nanostructural Study Of Pure And Al Doped Zno Nanopowders
Elaboration And Nanostructural Study Of Pure And Al Doped Zno Nanopowders Open
In this work we present the results on the synthesis of zinc oxide nanostructured powders pure and doped with Al by different methods: hydrolysis, hydrothermal and physical vapor deposition in solar reactor. The fine nanostructural charact…
View article: Chemical Redistribution and Microstructural Evolution of ODS Fe-Cr Powders During Mechanical Alloying
Chemical Redistribution and Microstructural Evolution of ODS Fe-Cr Powders During Mechanical Alloying Open
The oxide dispersion strengthened ferritic steel powders with chemical composition of Fe-14Cr-3W-0.3Y2O3 were mechanically alloyed from elemental powders in a planetary ball mill. Microstructural and chemical changes at different milling t…
View article: Dissolution Behaviour of Alloying Elements Into Vanadium Matrix During Mechanical Milling
Dissolution Behaviour of Alloying Elements Into Vanadium Matrix During Mechanical Milling Open
Mechanical alloying (MA) is an efficient approach for fabricating ODS alloys and structural materials including vanadium alloys for fusion and fission applications. Dissolution behavior of the alloying elements is a key issue for optimizin…