The high yttria content of a stabilized zirconia (YSZ) (38 wt% Y2O3) coating was deposited by atmospheric plasma spraying (APS) from Metco 207 powders on an Inconel 718 (Ni-based superalloy) substrate. As metal connection, layer cermet powder (Ni-20% Al—410NS) used before the ceramic deposition. electro-chemical corrosion resistance these materials tested using cylinders with diameter 10 mm and thickness 1 mm, without layer. Linear cyclic measurements were obtained in H2SO4 electrolyte media...

ABSTRACT One area of technological advancement has been the shift from stainless steel hand tools to nickel‐titanium (Ni‐Ti) rotary tools. This paper aims perform an in vitro comparative study evaluate efficacy five endodontic manual and instruments such as Kerr files, Orodeka Plex V, ProTaper Flydent NiTi super files combination with ultrasonic E3D Diamantata EMS scaler used for root canal shaping. The following aspects were highlighted: effective removal smear layer (SL) dentinal tubules...

In recent years, biodegradable materials have included magnesium alloys with homogenous disintegration and a controllable degradation rate. Utilized in medical applications, based on been widely explored throughout the years. It is well-known that alloying Mg biocompatible non-toxic elements increases biodegradability of surgical alloys. The purpose this study was to examine microstructure electrochemical response (corrosion resistance) new experimental Mg-based alloy-Mg-0.5%Ca additions Zn...

The use of a biosorbent based on residual biomass from brewing industry (Saccharomyces pastorianus) immobilized in natural biopolymer (sodium alginate) was investigated for Methylene Blue removal aqueous medium. Saccharomyces pastorianus, by simple entrapment technique and microencapsulation alginate characterized using SEM, EDAX, pHPZC the biosorption behavior toward organic pollutant, such as cationic dye. experiments were studied assessing, first stage, influence most important...

Coatings deposited by the cold particle gas spray method have shown significant potential for enhancing properties of metals. We investigated wear characteristics and corrosion behavior 52100 steel coated with a mixture Ni/chromium carbide (Ni/CrC) particles. These coatings exhibited high density were devoid cracks, closely adhering to substrate’s surface. Microscratch resistance testing revealed strong resilience, apparent friction coefficient exhibiting multiple peaks as displacement...

The medical applications of degradable iron-based biomaterials have been targeted by re-searchers due to their special properties that they present after alloying with various elements and different technological methods obtaining. Compared other biodegradable materials, alloys are designed especially for the low production costs, non-magnetism obtained Mn, shape memory effect (SME) following Si, which is necessary in it could replace nitinol successfully. Alloying new improve mechanical...

Background/Objectives: Corrosion resistance of dental alloys, indicated by metal ion release, is a significant concern. The aim this study was to investigate the impact various sandblasting methods on corrosion Co-Cr-W alloy samples in an artificial saliva solution. Materials and Methods: samples, obtained additive manufacturing (selective laser melting) subjected different processes, were evaluated using electrochemical tests potentiostat equipment Carter–Brugirard saliva. All measurements...

A new functional Fe-30Mn-5Si-xCu (x = 1.5 and 2 wt%) biomaterial was obtained from the levitation induction melting process evaluated as a biodegradable material. The degradation characteristics were assessed in vitro using immersion tests simulated body fluid (SBF) at 37 ± 1 °C, evaluating mass loss, pH variation that occurred solution, open circuit potential (OCP), linear cyclic potentiometry (LP CP), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) nano-FTIR. To...

The influence of the chemical composition and structural state Zn–Ti alloys on corrosion behaviour mechanical properties was studied. Zn-based were investigated, more precisely, pure technical Zn with 0.10, 0.25 1.00 wt.% Ti. microstructure these materials analysed using light optical microscopy (LOM), scanning electron (SEM), energy dispersive X-ray spectroscopy (EDS) diffraction (XRD). surface after immersion an EDS detector from Bruker. alloys’ electro-chemical resistance further...

Chitosan-based biosorbents are particularly valuable in environmental applications, such as wastewater treatment for contaminant removal. However, several challenges remain optimizing their production and performance related to improving adsorption efficiency, stability, scalability, cost, sustainable sourcing large-scale applications. The removal of Methylene Blue (MB) Orange 16 (O16) from aqueous solutions was studied using a biosorbent derived the waste biomass brewing industry,...

Background: This study examined how the concentration of calcium (Ca) influences microstructure, mechanical characteristics, and tribological attributes Mg–Ca–Zn–RE–Zr alloys for orthopedic medicine. Materials methods: Experimental with 0.1 0.5 wt% Ca were prepared in a controlled atmosphere induction furnace. The microstructure was investigated by scanning electron microscopy, chemical composition X-ray fluorescence energy-dispersive spectroscopy, properties indentation scratching,...

Special materials are required in many applications to fulfill specific medical or industrial necessities. Biodegradable metallic present attractive properties, especially mechanical ones correlated with good biocompatibility vivant bodies. A biodegradable iron-based material was realized through electric arc-melting and induction furnace homogenization. The new chemical composition obtained presented a special property named SME (shape memory effect) based on the martensite transformation....

Ceramic coatings have many advantages for industrial and medical applications due to their exceptional properties. with a thickness of approximately 45 μm, after grinding, were grown using robotic arm that used the atmospheric plasma spraying procedure. The thermal shock stresses—a common situation in but difficult reproduce under laboratory conditions—of ceramic layers on top metal substrate was achieved solar energy focused by concentrating mirror, based experiments conducted CNRS-PROMES...

Copper-based shape memory alloy (SMA) was obtained through a classic melting method. The material analyzed in heat treated and deformed states using scanning electrons microscopy (SEM), dilatometry (DIL), differential calorimetry (DSC), dynamic mechanical analyzer (DMA) energy dispersive X-ray analyze (EDAX) to establish the microstructure, properties like martensitic transformation domain rate or damping capacity. exhibits good effect high internal friction it is proposed as target pulsed...

The subject of Mg-based biodegradable materials, used for medical applications, has been extensively studied throughout the years. It is a known fact that alloying Mg with biocompatible and non-toxic elements improves biodegradability alloys are being in field surgical applications. aim this research to investigate aspects concerning microstructure, electrochemical response (corrosion resistance) vitro cytocompatibility new experimental alloy—Mg–0.5%Ca controlled addition Gd as follows: 0.5,...

Nowadays, alongside metallic biomaterials, there is increasing interest in using degradable metals an appreciable number of medical applications. There are new kinds biomaterials for applications and many findings have been reported over the past few years. Iron-based materials a solution biodegradable based on their mechanical chemical properties. In order to control corrosion rate Fe10Mn6Si alloy, we proposed use two additional elements, Ca Mg, as promoters. The material was obtained...

The surface condition of the materials involved in dentistry is significant for subsequent operations that are applied oral cavity. Samples Co–Cr–W alloy, obtained through selective laser melting (SLM) 3D printing, with different states were analyzed. Surface analysis after printing process and sandblasting was realized from microstructural, chemical composition, profilometry, droplet adhesion, scratch test, microhardness perspectives. results presented a hardening roughness modification...

This study focuses on the development of a performant formulation for O/W dermato-cosmetic emulsions, which can be incorporated into novel products or used as such. The emulsions contain an active complex based plant-derived monoterpene phenol, bakuchiol (BAK) and signaling peptide named n-prolyl palmitoyl tripeptide-56 acetate (TPA). As dispersed phase, we mix vegetable oils, continuous Rosa damascena hydrosol was employed. Three containing different concentrations were formulated (0.5% BAK...

The development of products with skin-protective effects has been driven by the increasing incidence skin diseases that are exacerbated pollution, urbanization, poor living, working, fatigue, dietary habits, and general treatment. ability antioxidants to protect from oxidative stress its makes them one most important ingredients in today's cosmetics. This article aims first characterize plant extracts obtained Acmella oleracea (A. oleracea) then evaluate preliminary criteria for a new...

Ceramic materials as coatings are known to have very good corrosion resistance properties compared metallic or organic coatings, regardless of environmental conditions. The following samples were used for the experiments: an initial steel substrate and Al2O3 + YSZ (12.5%; 25% 37.5% wt) atmospheric plasma spray-coated samples. open circuit potential showed similar average values all coated with ceramic layers, which slightly higher than original uncoated sample. current densities (icorr) jet...

A new possible method to produce a transdermal patch is proposed in this paper. The study refers the pulsed laser deposition (PLD) applied on turmeric target order obtain thin layers. Under high power irradiation of 532 nm wavelength, films containing curcuminoids were obtained different substrates such as glass and quartz (laboratory investigation) hemp fabric (practical application). Compared FTIR, SEM-EDS LIF analyses proved that film chemical composition mainly demethoxycurcumin...

Methylene Blue, a cationic dye, was retained from aqueous solutions using novel biosorbent made of poly(vinyl alcohol) reticulated with tricarboxi-cellulose produced via TEMPO oxidation (OxC25). The study the Blue biosorption process performed an emphasis on operational parameters that may have impact it (such as concentration, pH media, and temperature). current focused three areas: (i) physic-chemical characterization (scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy...

The degradation of a quenching cooling medium is particularly important technical aspect in the technology primary and final thermal treatments. This paper studied effect cycles heating on tempering type 2.5% carboxymethyl cellulose solution water. main characteristic absorption heat from part, which influenced by physico-chemical characteristics liquid according to degree fatigue. For this, properties environment are analyzed, such chemical composition, corrosion capacity, wetting capacity...