English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We investigated the opportunities for obtaining hexaferrites Pb 1- x  La  x  Fe 12- x  Zn  x  O 19 ( x = 0-1) from citrate-glycerin gel and showed that synthesis occurs via the formation of the Fe 3 O 4 phase; products with a small amount of hematite impurity Fe 2 O 3 can be obtained after firing at 800 to 900 °C with 0 ≤ x ≤ 0.5. If x &gt; 0.5, perovskite-like LaFeO 3 is formed in samples, so that if x = 0.9-1, the synthesis products virtually do not contain phases with hexaferrite structures and represent a mixture of LaFeO 3 , Fe 2 O 3 , and Fe 3 O 4 . Within the range of 0 ≤ x ≤ 0.5, the electrical and magnetic characteristics of hexaferrites Pb 1- x  La  x  Fe 12- x  Zn  x  O 19 are slightly dependent on x and have the following average values: A relative permittivity ε/ε 0 ~ 45, a dielectric loss tangent tan δ ~ 0.6, an electrical resistivity R ~ 10 9 Ohm cm, coercivity H c ~ 3 kOe, saturation magnetization M s ~ 50 emu/g, and remanent magnetization M r ~ 25 emu/g. The magnetoelectric (ME) ceramics 50 wt.% PZTNB-1 + 50 wt.% Pb 1- x  La  x  Fe 12- x  Zn  x  O 19 (PZTNB-1 is an industrial piezoelectric material based on lead titanate zirconate (PZT) do not contain impurity phases and have the following characteristics: Piezoelectric coefficients d 33 = 10-60 and -d 31 = 2-30 pC/N, piezoelectric voltage coefficients g 33 = 2-13 and -g 31 = 1-5 mV m/N, an electromechanical coupling coefficient K p = 0.03-0.13, magnetic parameters H c = 3-1 kOe, M s = 50-30, and M r = 25-12 emu/g. The maximum ME coupling coefficient ΔE/ΔH ~ 1.75 mV/(cm Oe) was achieved with x = 0.5.

Gel Synthesis of Hexaferrites Pb1−xLaxFe12−xZnxO19 and Properties of Multiferroic Composite Ceramics PZT–Pb1−xLaxFe12−xZnxO19