Nanostructured MgTiO3 thick films obtained by electrophoretic deposition from nanopowders prepared by solar PVD

Apostol, Irina; Mahajan, Amit; Monty, C.; Saravanan, K.

doi:10.1016/j.apsusc.2015.09.060

Cited by 11 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the process is eco-friendly since it uses solar energy which is available abundantly in nature. The KNNT powder required for the EPD was prepared by conventional solid state reaction technique [16,17]. The KNNT and Mg 2 TiO 4 powders were thoroughly mixed in isopropyl alcohol and acetone, respectively, followed by ultra-sonication and rigorous magnetic stirring.…”

Section: Stable Suspensionmentioning

confidence: 99%

“…Even though the starting powder was Mg 2 TiO 4, a pure MgTiO 3 phase without secondary phases was obtained after sintering because nanopowders were very fine and very reactive. Moreover, the XRD patterns were matched to crystallographic data on synthetic geikielite crystalline phase and the peaks were indexed to a rhombohedral unit cell with a = b = 0.5057(2) nm and c = 1.3890(4) nm [17].…”

Section: Electrophoretic Depositionmentioning

confidence: 99%

“…(a) Schematic representation of customized EPD cell (b) optical micrograph of MgTiO 3 thick film[17], and (c) KNNT thick film.…”

mentioning

confidence: 99%

“…(a) XRD patterns of KNNT powder, green film and sintered thick films (b) XRD patterns of Mg 2 TiO 4 nanopowder, EPD films sintered at 800 (15 min) and 900°C (15 min)[17].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Fabrication of Dielectric Thick Films by Electrophoretic Deposition and Their Characterization

Vineetha¹,

K²

2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

View full text Add to dashboard Cite

In this chapter, we have discussed about the fabrication of MgTiO 3 and (K 0.5 Na 0.5) (Nb 0.7 Ta 0.3)O 3 (KNNT) thick films via EPD, including the preparation of stable suspension, which is the essential requirement for EPD. Acetone and isopropyl alcohol are used as solvents for MgTiO 3 and (K 0.5 Na 0.5)(Nb 0.7 Ta 0.3)O 3 , respectively. In both the cases triethanolamine (TEA) is used as the surfactant. It was observed that with increase in applied voltage and deposition time, the deposition of particle on the substrate has increased. For KNNT particle the optimum voltage and time to get quality film was 100 V and 10 min respectively. The surface morphology and film thickness was analyzed from SEM images. The thickness of KNNT and MgTiO 3 films was found to be ̴ 32 and 18-20 μm (for film sintered at 900°C) respectively. In the case of MgTiO 3 thick films, the sintering temperature plays an important role in the quality of films since it affects the density and grain growth. An increase in the sintering temperature, from 800-900°C, resulted in increase in the dielectric constant and reduced loss. The dielectric values of the KNNT and MgTiO 3 thick film at 1 MHz was 320 and 18.3 respectively.

show abstract

Section: Stable Suspensionmentioning

confidence: 99%

Section: Electrophoretic Depositionmentioning

confidence: 99%