Effect of pulsed electron beam treatment on the physico-mechanical properties of hydroxyapatite-coated titanium

Сурменева, М. А.; Chudinova, Ekaterina; Grubova, Irina Yu.; Корнева, О. С.; Шулепов, И. А.; Тересов, А. Д.; Koval, N. N.; Mayer, Joachim; Oehr, Christian; Surmenev, Roman A.

doi:10.1016/j.ceramint.2015.09.092

Cited by 10 publications

(3 citation statements)

References 27 publications

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“…Before the simulation, the energy of the system is minimized, and then the whole system is maintained for 80 ps in a certain temperature hot bath by using the canonical ensemble (NVT) to achieve the required temperature for the simulation. The initial physical state of the material is then obtained by continuing 70 ps under isothermal isobaric ensemble (NPT) to maintain a constant temperature and applying a pressure of 1 Pa 16 . In region C, the NVT canonical ensemble is used to maintain the region for 70 ps in a hot bath at a specific temperature to reach the required temperature for simulation again.…”

Section: Methodsmentioning

confidence: 99%

Interfacial mechanical properties of graphene/titanium in composites based on beam search algorithm

Zhang

Liang

2020

Asia-Pacific J Chem Eng

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The interface mechanical properties of graphene and titanium composites in traditional studies lack molecular dynamics simulation and cannot construct composite interface model. A method for studying the interfacial mechanical properties of graphene/titanium in composite materials based on beam search algorithm is proposed, using the beam search algorithm to simulate the tensile deformation of graphene and titanium to establish the graphene/titanium single and dual interface model. Using the molecular dynamics method to simulate the mechanical behavior of multilayer graphene interface, the interface model of graphene/titanium composites is constructed according to the simulation results, and the calculation formula of interface interaction energy is obtained. The experimental results show that using the proposed method, the graphene/titanium dual interface model has higher interlayer electron density than the single interface model, the electronic characteristics are smoother at the interface transition, and the interface is more stable. Graphene has an interfacial interaction with the titanium atoms adjacent to the upper and lower layers, and has the strongest covalent interaction with the nearest titanium atom layer, which is beneficial to reduce the energy of the composite system and improve the stability of the graphene/titanium composites.

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Section: Methodsmentioning

confidence: 99%

Interfacial mechanical properties of graphene/titanium in composites based on beam search algorithm

Zhang

Liang

2020

Asia-Pacific J Chem Eng

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“…Different methods have been developed to apply biocompatible coatings including plasma spray [3][4][5], mechanical milling [6], pulse laser [7][8][9], aerosol [10,11], sol-gel [12,13], electro-deposition [14], pulse electron [15,16], EPD method [17]. These methods can be employed as processing techniques for the fabrication of coatings and small parts with complicated shapes [17].…”

Section: Introductionmentioning

confidence: 99%

Processing of the yttria stabilized zirconia-bioactive glass nano composite produced by electrophoretic deposition method

2022

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The yttria-stabilized zirconia (YSZ) is added to a bioactive glass coating through the electrophoretic deposition (EPD) method to significantly improve the mechanical properties, in particular the bonding strength of the coating on the Ti substrate. In this study, suspensions of bioactive glass and YSZ powder (at the same ratio, 20 g/l) are prepared in ethanol solvent; and tri-ethanol-amine is used as the stabilizer. The effects of the EPD parameters such as deposition time and voltage are studied. The optimum coating quality is achieved at a voltage of 60 V for 10 min. After coating, sintering is performed at three different temperatures (800, 850, and 900 °C). The XRD is used to identify the structure and phase of yttria-stabilized zirconia powders and the coated samples. FE-SEM is also employed to assess the microstructure of the specimens. The highest adhesion strength ($$\sim$$ ∼ 4.38 MPa) is obtained at the sintering temperature of 850 °C.

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“…Nevertheless, the scientiic community is devoting great eforts looking for new alternative methods in order to obtain hydroxyapatite ceramics with improved microstructural and corrosion properties. In this way, laser-assisted bioprinting and pulsed laser deposition techniques are very promising methods to obtain this kind of hydroxyapatite ceramics and thin ilms [11][12][13][14]. Also, alternating current electric ield modiied synthesis [15] and magnetron sputering techniques (MST) [16,17].…”

Section: Introductionmentioning

confidence: 99%

Controlled Rate Thermal Analysis (CRTA) as New Method to Control the Specific Surface in Hydroxyapatite Thin Coatings

Peón¹,

hadad²,

García-Galván³

et al. 2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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The control of the texture in synthetic hydroxyapatite ceramics had limited their application in the ield of the materials for bone implantation, even more when it is used as a illing in cements and other formulations in orthopedic surgery. The present article shows preliminary results demonstrating the efectiveness of a modiication of the controlled rate thermal analysis (CRTA), developed by J. Rouquerol, used for the preparation of ceramic materials with controlled textural characteristics, during the formation of ceramic powders of synthetic hydroxyapatite at low temperatures. The thermal treatments of the hydroxyapatite were carried out in a device connected to a computer, to control temperature and pressure system, keeping the decomposition speed constant. Results, reported when preparing ceramic powders of hydroxyapatite at 300 and 850°C under controlled pressure, using synthetic hydroxyapatite with a Ca/P molar ratio equal to 1.64, were checked using IR spectroscopy and X-ray difraction, showed that the formed phase corresponds to that of crystalline hydroxyapatite, even at 300°C of maximum temperature. Values of speciic surface (BET) between 17 and 66 m 2 /g, with pore size in the range of 50-300 Å in both cases are obtained by N 2 absorption isotherms, when analyzing the isotherms of nitrogen absorption.

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Effect of pulsed electron beam treatment on the physico-mechanical properties of hydroxyapatite-coated titanium

Cited by 10 publications

References 27 publications

Interfacial mechanical properties of graphene/titanium in composites based on beam search algorithm

Interfacial mechanical properties of graphene/titanium in composites based on beam search algorithm

Processing of the yttria stabilized zirconia-bioactive glass nano composite produced by electrophoretic deposition method

Controlled Rate Thermal Analysis (CRTA) as New Method to Control the Specific Surface in Hydroxyapatite Thin Coatings

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