@article { ISI:000228794300014,
	title = {Preparation of fine MgTa2O6 and Mg4Ta2O9 powders by chemical methods},
	journal = {Materials Science and Engineering B-Solid State Materials for Advanced Technology},
	volume = {119},
	number = {2},
	year = {2005},
	month = {MAY},
	pages = {189-191},
	publisher = {ELSEVIER SCIENCE SA},
	type = {Article},
	address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND},
	abstract = {<p>Two different chemical methods are applied to prepare MgTa2O6 (MT2) and Mg4Ta2O9 (M4T2) powders. A gel was formed when a aqueous solution of Mg(NO3)(2), TAF(5) and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 750 degrees C produced the fine crystallites of ternary oxide, M4T2. A simple co-precipitation technique had been successfully applied for the preparation of pure ultrafine single phase MT2. Ammonium hydroxide was used to precipitate Mg2+ and Ta5+ cations as hydroxides simultaneously. This precursor on heating at 750 degrees produces MT2 powders. The phase contents and lattice parameters were studied by the powder X-ray diffraction (XRD). Particle size and morphology was studied by transmission electron microscopy (TEM). (c) 2005 Elsevier B.V. All rights reserved.</p>},
	keywords = {Electron microscopy, powders-chemical preparation, X-ray methods},
	issn = {0921-5107},
	doi = {10.1016/j.mseb.2005.02.058},
	author = {Navale, SC and Ravi, V}
}
