Structure, Electronic, Magnetic, and Elastic Properties of Cd0.75TM0.25O (TM = Mn, Fe, Co, and Ni) Compounds

Menaceur, Moussa; Alleg, S.; Abdelouahed, Samir; Belghit, R.

doi:10.1007/s13369-021-05746-w

Cited by 2 publications

(1 citation statement)

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“…The structural, optical, and magnetic signatures of the host CdO matrix were found to be improved by transition metal doping, allowing for novel applications. CdO nanoparticles doped with Mn 2+ [32][33][34] and Fe 3+ [35][36][37] have gotten a lot of attention. Even so, no prior research has looked experimentally at the effect of the addition of Cd 0.95 Mn 0.05 O (CdMnO) and Cd 0.95 Fe 0.05 O (CdFeO) nanoparticles on the structural, mechanical, and thermal behavior (TGA) of (Bi, Pb)-2212superconducting ceramics.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Mechanical Investigations of (Bi, Pb)-2212 Superconductor Added with Different Oxide Nanoparticles

Matar,

Basma,

Abbas

et al. 2024

Materials Performance and Characterization

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In this study, superconducting samples of type Bi 1.6 Pb 0.4 Sr 1.9 Ca 1.1 Cu 2.1 O y ,(Bi, Pb))-2212, added with CdO, CdMnO, and CdFeO nanoparticles, were synthesized using a solid state reaction technique. The samples were examined using X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Thermogravimetric analysis (TGA) was utilized to evaluate the thermal stability of the pure sample throughout the different stages of the phase formation and the effect of the nanoparticles addition. The weight loss/gain by the three additions is related to the excess of oxygen, con rmed via Iodometric titration analysis and from the ndings of oxygen diffusion energy using TGA data. Vickers microhardness measurements were conducted at various applied loads (0.49-9.8 N). All of the prepared samples displayed a typical 'indentation size effect' (ISE) behavior based on the H V measurements. It was found that the optimum addition of nanoparticles, for increasing the microhardness of the (Bi, Pb)-2212 phase, was at x = 0.05 wt. %. Furthermore, various mechanical properties as Elastic modulus (E), yield strength (Y), fracture toughness(K), and brittleness index (B) were calculated for three additions of the samples studied. As for the theoretical examination of H V in the saturation limit regions, the indentationinduced cracking (IIC) model wins the comparison.

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