Preparation and structural stability of ordered nanocomposites: opal matrix - lead titanates
| Parent link: | IOP Conference Series: Materials Science and Engineering Vol. 135 : Issues of Physics and Technology in Science, Industry and Medicine.— 2016.— [012038, 5 p.] |
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| Other Authors: | , , , , |
| Summary: | Title screen The conditions for the formation of nanocomposites based on the basis of lattice packings of SiO[2] nanospheres (opal matrices) with included crystallites of lead titanates (PbTiO[3] and PbTi[3]O[7]) in interspherical nanospacing are considered. For the formation of nanocomposites are used sample opal matrices with dimensions of single-domain regions >=0,1 mm.{3} The diameter of SiO[2] nanospheres was ~260 nm. Obtained nanocomposites volume >2 cm{3} in filling >20% of interspherical nanospacing PbTiO[3], PbTi[3]O[7] crystallites were size of 16-36 nm. Using X-ray diffraction and Raman spectroscopy are studied composition and structural stability when heated nanocomposites to 550°C, which allowed the identification of a local phase transition with change of the space group. The dependence of the composition of synthesized materials on the conditions of their preparation is submitted. |
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2016
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| Online Access: | http://dx.doi.org/10.1088/1757-899X/135/1/012038 http://earchive.tpu.ru/handle/11683/34827 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650317 |