Characterization of MgAl2O4 sintered ceramics

Obradović, Nina; Fahrenholtz, William G.; Filipović, Suzana; Corlett, Cole; Đorđević, Pavle; Rogan, Jelena; Vulić, Predrag; Buljak, Vladimir; Pavlović, Vladimir

doi:10.2298/sos1904363o

Cited by 17 publications

(10 citation statements)

References 30 publications

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“…Numerous analysts have put forth different attempts in creating transition metal based oxide (essentially got from Mn 3 O 4 ) nanoparticles through various synthesis techniques, for example, ultrasonic technique [21],co-precipitation [22,23], auto-burning [24], solid state reaction [25,26], ball milling process [27,28], sol-gel [29] techniques and others. In light of the methods referenced above, we apply the co-precipitation route because of its simplest and adequacy in creating the nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Structural, vibrational and magnetic characterization of copper doped CoMn2O4 nano-particles synthesized by chemical route

2021

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The Co1-xCuxMn2O4 samples were effectively synthesized by means of chemical reagents and highly scalable co-precipitation technique. X-ray diffraction investigation affirmed the tetragonal structure possessed by Co1-xCuxMn2O4 with crystal size ranging from 12 nm to 22 nm. The crystallite size and micro strain values were correlated using Williamson-Hall plot and size-strain plot method. SEM images showed highly porous, less dense, agglomerated grains with grain size from 3.93 ?m to 13.73 ?m. Vibrational characterization of the samples was completed using FTIR spectra and Raman spectra which affirm the tetragonal structure. The magnetic characterization demonstrates the ferromagnetic nature of the materials which varies with copper substitution

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Section: Introductionmentioning

confidence: 99%

Structural, vibrational and magnetic characterization of copper doped CoMn2O4 nano-particles synthesized by chemical route

2021

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“…Powder mixtures milled for 60 h, pressed, and sintered at 1200 • C for 1 h gave a cold crushing strength value of 70 MPa. 71 Another study by Obradović et al 72 reported on the formation and…”

Section: Synthesis Of Mas By Solid-state Reaction Routementioning

confidence: 98%

Synthesis of magnesium aluminate spinel—An overview

Baruah

Bhattacharyya

Sarkar

2023

Int J Applied Ceramic Tech

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Magnesium aluminate spinel (MAS) is a remarkable ceramic material known for its unique combination of beneficial properties. But due to volume expansion associated with spinel formation, and the high cost of production, MAS was not commercially successful till last century. However, environmental friendliness and superior properties have helped MAS to substitute magnesia-chrome refractories and are commercially acceptable with time. From an industrial perspective, solid-oxide reaction route or conventional oxide mixing route is the most popular method used for the synthesis of MAS. Although there have been myriad other common routes-coprecipitation, sol-gel, auto-ignition, molten technique, and so forth to produce spinel, solid-oxide reaction route is still the principal route from the industrial point of view owing to its ease of bulk production and low cost of production for refractory applications. This report attempts to accumulate the information on different synthesis techniques used for the synthesis of MAS for easy and ready reckoning.

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“…The crack process in Ca-PWA crystals had followed the appearance of smaller crystals with the average size of several micrometers (~ 2 μm). Concerning Ca-PWB sample, SEM image have shown increased micrometer size (~ 20 μm) due to agglomeration of crystals [33][34][35][36].…”

Section: Tab IImentioning

confidence: 99%

A possible connection between phosphate tungsten bronzes properties and Briggs-Rauscher oscillatory reaction response

Maksimović

Tančić³

et al. 2021

Sci Sintering

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The calcium phosphate tungsten bronze (Ca-PWB) has been synthesized and characterized (TGA, DSC, XRPD, FTIR, SEM). The influence of solid insoluble materials Ca- PWB, as well as lithium doped (Li-PWB) and cation free phosphate tungsten (PWB) bronzes on the oscillatory Briggs-Rauscher (BR) reaction dynamics, is compared. The results show that doping with Li and Ca reduces sensitivity of the BR reaction towards bronzes addition. These findings suggest the usage of the BR reaction as an innovative method for testing of different properties of bronze material. The behavior of PWB in the BR reaction is significantly changed with divalent cation (Ca2+) doping. The reasons for the different bronzes behavior were found in their calculated unit cell volumes. Namely, the compressed Ca-PWB unit cell volume indicates the difficult availability of the active site for heterogeneous catalysis. Hence, the linear correlation (slope) of the BR oscillogram?s length (?osc) vs. mass of bronze in BR reaction might be considered as a new parameter for the evaluation of the bronzes catalytic activity.

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Characterization of MgAl2O4 sintered ceramics

Cited by 17 publications

References 30 publications

Structural, vibrational and magnetic characterization of copper doped CoMn2O4 nano-particles synthesized by chemical route

Structural, vibrational and magnetic characterization of copper doped CoMn2O4 nano-particles synthesized by chemical route

Synthesis of magnesium aluminate spinel—An overview

A possible connection between phosphate tungsten bronzes properties and Briggs-Rauscher oscillatory reaction response

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