Study the effect of α-TeO2 substitution on some properties Hg- system | Zendy

Shatha hashim Mahdi | Zendy

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Study the effect of α-TeO2 substitution on some properties Hg- system

Author(s) -

Shatha hashim Mahdi

Publication year - 2018

Publication title -

al-mustansiriyah journal of science

Language(s) - English

Resource type - Journals

eISSN - 2521-3520

pISSN - 1814-635X

DOI - 10.23851/mjs.v29i2.301

Subject(s) - tetragonal crystal system , electrical resistivity and conductivity , lattice constant , materials science , brittleness , semiconductor , lattice (music) , analytical chemistry (journal) , composite material , crystallography , chemistry , crystal structure , physics , diffraction , optics , chromatography , optoelectronics , quantum mechanics , acoustics

Specimens of HgBa2-xTexCa2Cu3 O8+ with x =0, 0.15, 0.3 and 0.45, were prepared by traditional method (SSR). The results showed enhancing structural and electrical (resistivity vs temperature) properties, where XRD analysis shows a tetragonal structure for all specimens and high ratio of Hg-1223 phase with an increase of the lattice parameter and Tc, except x=0.45, it shown semiconductor. The HgBa1.70Te0.30Ca2Cu3 O8+ specimen with x= 0.3 shows the highest (Tc=143K) than with Tc of the basic compound HgBa2Ca2Cu3 O8+ equal (135K), at increment of Te content. While mechanical properties have been weakened as consequence to increasing brittleness of HgBa2-xTexCa2Cu3 O8+ compounds at increment Te content.

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