Metastable magnesium titanate phases synthesized in nanometric systems

Synthesis and Characterizations of Novel Ca-Mg-Ti-Fe-Oxides Based Ceramic Nanocrystals and Flexible Film of Polydimethylsiloxane Composite with Improved Mechanical and Dielectric Properties for Sensors

“…Lead (Pb) free perovskite materials have been investigated to be used in many energy storage applications [13,14]. The perovskite calcium titanate (orthorhombic or monoclinic CaTiO 3 ) and geikeilite magnesium titanate (rhombohedral MgTiO 3 ) are being used as attractive materials in many ceramic coating industries [15,16]. It has been found that thermal diffusivity of these materials, e.g., MgTiO 3 -CaTiO 3 , decreases with temperature but thermal conductivity increases with sintering temperature [11].…”

Dielectric and AC conductivity studies of novel porous armalcolite nanocomposite‐based humidity sensor

“…The structure of piezoelectric ceramics is perovskite in nature, i.e., M 2+ TiO 3 , and its chemical composition decides its crystal structure, including trigonal (if M=Fe, Co, Ni, Mn, and Mg) or face‐centered cubic (FCC) (if M=Ca, Ba, and Sr) . The geikeilite magnesium titanate (rhombohedral MgTiO 3 ) and calcium titanate (orthorhombic or monoclinic CaTiO 3 ) are very popular materials in coating industries . The thermal conductivity and diffusivity of perovskite materials, such as MgTiO 3 –CaTiO 3 , are increased and decreased, respectively, with sintering temperature .…”

Molecular structure design approach to perspective single-source precursors of titanate materials. Synthesis, X-ray single crystal and mass-spectrometric study of M2Ti2(acac)4(OMe)8, M=Mg, Co

“…Magnesium titanate is of interest, for example, as microwave dielectric ceramics [1,2], while cobalt titanate is used in preparation of magnetic ferroelectric nanocomposite materials [3][4][5] and nanoparticulate gas sensors [6]. The synthetic approaches to these ceramic materials developed so far include the solid state reactions between fine powders [7,8] or even nanoparticles [9,10] of homometallic oxides, or Mg(OH) 2 and titanium oxide [11], co-precipitation reactions in aqueous media [6,12], and, only for MgTiO 3 , the alkoxide based sol-gel approach, based on hydrolysis of solutions of n-butoxides in nBuOH [13]. No metal-organic precursor based approach has been proposed so far to CoTiO 3 and no hydrocarbon-soluble or volatile individual heterometallic precursors to magnesium or cobalt titanate materials have been reported.…”