Sintering of WC-Ni nanocomposite powder: Experimental and artificial neural networks modeling study

Mohammadzadeh, Hurieh; Aghaeinejad‐Meybodi, Abbas

doi:10.1016/j.ceramint.2021.03.323

Cited by 6 publications

(2 citation statements)

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“…Due to their small size, nanomaterials have a high surfaceto-volume ratio, which causes considerable changes in material properties, such as decreasing the thermal conductivity coefficient, improving the ability of the material to store energy and the malleability of brittle materials. [1][2][3] Regarding the mechanical properties of materials, it is reported that the hardness has increased up to seven times in the nanoscale. 3 In addition, composite materials can be employed to improve the material properties and achieve the required characteristics.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Mohammadzadeh,

Jafari,

Azargoon

2024

Int J Applied Ceramic Tech

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Ceramic composites are suitable materials to improve the surface characteristics of steel. Therefore, in this research, Ni–Cr oxide nanocomposite was coated on 304 stainless steel (SS304) by the electrophoretic approach. The effect of chemical composition and coating parameters (time and voltage) was investigated on morphology, corrosion, microhardness, and wear behavior. The nanocomposites were successfully synthesized in three different compositions (Ni–Cr oxides of 70–30, 60–40, and 50–50). The products were coated on the SS304 in 1, 2, and 3 min and 90, 110, and 130 V. Fourier‐transform infrared spectroscopy, X‐ray diffraction, transmission electron microscope, and field emission scanning electron microscopy analyses were employed to investigate the characteristics of the synthesized powder and resulting coatings. The hardness, wear properties, and corrosion resistance of the coating were studied by microhardness, ball‐on‐disk, electrochemical impedance spectroscopy, and polarization methods. The coatings deposited at 1 min and 110 V were sound and free of microcracks. The wear resistance increased by increasing Cr%, so the 50–50 coating showed the best wear resistance with a friction coefficient of .763 and wear mass of 1.6 mg. However, the coating 70–30 presented the highest microhardness of 180.28 Hv. The coating 60–40 had the best corrosion resistance with a corrosion current density of 5.92 µA/cm2. The corrosion resistance improved for thicker coatings.

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Section: Introductionmentioning

confidence: 99%

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Mohammadzadeh,

Jafari,

Azargoon

2024

Int J Applied Ceramic Tech

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“…However, it is assumed that the combination of two transition metal oxides of NiO and Cr2O3 could provide a rise in their associated functionality, improved than the individual performance of each constituent. A number of techniques have been reported in the previous studies to synthesize nano-sized oxide semiconductors composites including thermal decomposition [19], microwave-irradiation [20], chemical precipitation [21][22][23], sol-gel [24], sonochemical [25], hydrothermal [26,27] and co-precipitation [28,29] methods. Most of the techniques addressed in the literature are associated with the high cost and low yielding drawback.…”

Section: Introductionmentioning

confidence: 99%

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Javadi

Mohammadzadeh

Aghaeinejad‐Meybodi

2023

Preprint

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In the present study, the nanocomposite of Ni-Cr oxide was synthesized through the chemical co-precipitation route with different ratios of NiO to Cr2O3, including 50–50, 60 − 40, and 70 − 30 wt. %. The morphological and physical properties of products were assessed thoroughly. Moreover, the possible chemical reactions through synthesis were proposed based on FTIR and XRD results. The crystallite size, the lattice strain, and stress were evaluated through some well-known methods based on XRD diffraction. The particle size and morphology of produced powders were studied by FESEM imaging. Also, the optical and magnetic features were assessed by UV-Vis spectroscopy and VSM analysis, respectively. The results proved the presence of NiO and NiCr2O4 in the calcined products, with uniform distribution of elements and an average particle size of < 30 nm. Moreover, the crystallite size, and the lattice stress and strain decreased with increasing NiO in the product. According to the VSM curves, nanocomposite powders showed a weak ferro/ferrimagnetic signal with a fairly dominant superparamagnetic feature. While the largest coercivity of 252 Oe belonged to the sample 70 − 30, the highest magnetization saturation (0.291 emu/g) was observed for 50–50. According to the UV-Vis curves, the value of band gap energy was in the semiconductor’s domain and increased by NiO value in the hybrid oxide combination.

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Prediction of sintered density of binary W(Mo) alloys using machine learning

et al. 2023

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Sintering of WC-Ni nanocomposite powder: Experimental and artificial neural networks modeling study

Cited by 6 publications

References 46 publications

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Prediction of sintered density of binary W(Mo) alloys using machine learning

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