Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics - Publikacja - MOST Wiedzy

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Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics

Abstrakt

Doping of Na and K at La sites and of B at Si site in La10Si6O27 with oxyapatite structure and fabrication of their ceramics were made by solid-state reaction method. It was found that partial substitution of Na+ and K+ on La sites decreased the sinterability of the La10Si6O27 based ceramics, whereas partial substitution of B3+ on Si site imporved the sinterability. Na+ and K+ substitutions in La10-xNaxSi6O27-x and La10-xKxSi6O27-x were found to suppress second-phase La2SiO5 formation. La10Si5.5B0.5O26.75 ceramic sintered at 1575ºC showed the highest electrical conductivity at temperatures above 600ºC among all the apatite ceramics evaluated. The electrical conductivities of La10Si5.5B0.5O26.75 at 700ºC and 800ºC reported 0.011 and 0.024 S cm-1, respectively, which are superior or comparable to previous studies, and their activation energies for conduction were calculated to be 0.80 eV.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ECS Transactions nr 91, strony 1223 - 1228,
ISSN: 1938-5862
Język:
angielski
Rok wydania:
2019
Opis bibliograficzny:
Wang S., Hsu Y., Liao Y., Yang T., Jasiński P.: Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics// ECS Transactions -Vol. 91,iss. 1 (2019), s.1223-1228
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1149/09101.1223ecst
Weryfikacja:
Politechnika Gdańska

wyświetlono 79 razy

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