Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses
Multicomponent silicate glasses are crystallized by Y<sub>2</sub>O<sub>3</sub> addition. Depending on the Y<sub>2</sub>O<sub>3</sub> concentration, different crystalline phases evolve. In the absence of Y<sub>2</sub>O<sub>3</sub>...
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MDPI AG
2024-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/14/3/214 |
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| author | Akram Beniaiche Aitana Tamayo Nabil Belkhir Fausto Rubio Abdellah Chorfa Juan Rubio |
| author_facet | Akram Beniaiche Aitana Tamayo Nabil Belkhir Fausto Rubio Abdellah Chorfa Juan Rubio |
| author_sort | Akram Beniaiche |
| collection | DOAJ |
| description | Multicomponent silicate glasses are crystallized by Y<sub>2</sub>O<sub>3</sub> addition. Depending on the Y<sub>2</sub>O<sub>3</sub> concentration, different crystalline phases evolve. In the absence of Y<sub>2</sub>O<sub>3</sub>, a multicomponent glass crystallizes as ZnSnO<sub>3,</sub> while with the addition of just 3% of this oxide, ZnSnO<sub>3</sub> no longer crystallizes and ZrSiO<sub>4</sub> appears instead. Different yttrium silicate crystals are formed in all glasses containing Y<sub>2</sub>O<sub>3</sub>, but, while α-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> and β-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> are favored at low Y<sub>2</sub>O<sub>3</sub> concentrations, the γ-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> and y-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> phases are favored at the maximum Y<sub>2</sub>O<sub>3</sub> content. At a 12% Y<sub>2</sub>O<sub>3</sub> concentration, barium and calcium silicate crystalline phases also evolve. Interestingly, the crystalline phases appearing on the surface of the material present different microstructures compared to crystals developed in the bulk. While the crystallized surface presents a tabular-shape type, crystallization in the bulk is of a prismatic type at low Y<sub>2</sub>O<sub>3</sub> concentrations and of a globular (spherical) type at higher concentrations. The main crystal size ranges between 0.85 and 0.75 micrometers, but most of the crystals coalesce to form larger superstructures depending on the Y<sub>2</sub>O<sub>3</sub> concentrations. |
| first_indexed | 2024-04-24T18:24:16Z |
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| id | doaj.art-27ba0e4ebaa54c90a03123da0bcf50ef |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-24T18:24:16Z |
| publishDate | 2024-02-01 |
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| spelling | doaj.art-27ba0e4ebaa54c90a03123da0bcf50ef2024-03-27T13:32:23ZengMDPI AGCrystals2073-43522024-02-0114321410.3390/cryst14030214Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate GlassesAkram Beniaiche0Aitana Tamayo1Nabil Belkhir2Fausto Rubio3Abdellah Chorfa4Juan Rubio5Laboratory of Applied Optics, Institute of Optics and Precision Mechanics, Ferhat Abbas University, Setif 19000, AlgeriaInstitute of Ceramic and Glass, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, SpainLaboratory of Applied Optics, Institute of Optics and Precision Mechanics, Ferhat Abbas University, Setif 19000, AlgeriaInstitute of Ceramic and Glass, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, SpainLaboratory of Applied Optics, Institute of Optics and Precision Mechanics, Ferhat Abbas University, Setif 19000, AlgeriaLaboratory of Applied Optics, Institute of Optics and Precision Mechanics, Ferhat Abbas University, Setif 19000, AlgeriaMulticomponent silicate glasses are crystallized by Y<sub>2</sub>O<sub>3</sub> addition. Depending on the Y<sub>2</sub>O<sub>3</sub> concentration, different crystalline phases evolve. In the absence of Y<sub>2</sub>O<sub>3</sub>, a multicomponent glass crystallizes as ZnSnO<sub>3,</sub> while with the addition of just 3% of this oxide, ZnSnO<sub>3</sub> no longer crystallizes and ZrSiO<sub>4</sub> appears instead. Different yttrium silicate crystals are formed in all glasses containing Y<sub>2</sub>O<sub>3</sub>, but, while α-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> and β-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> are favored at low Y<sub>2</sub>O<sub>3</sub> concentrations, the γ-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> and y-Y<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> phases are favored at the maximum Y<sub>2</sub>O<sub>3</sub> content. At a 12% Y<sub>2</sub>O<sub>3</sub> concentration, barium and calcium silicate crystalline phases also evolve. Interestingly, the crystalline phases appearing on the surface of the material present different microstructures compared to crystals developed in the bulk. While the crystallized surface presents a tabular-shape type, crystallization in the bulk is of a prismatic type at low Y<sub>2</sub>O<sub>3</sub> concentrations and of a globular (spherical) type at higher concentrations. The main crystal size ranges between 0.85 and 0.75 micrometers, but most of the crystals coalesce to form larger superstructures depending on the Y<sub>2</sub>O<sub>3</sub> concentrations.https://www.mdpi.com/2073-4352/14/3/214crystallizationY<sub>2</sub>O<sub>3</sub>multicomponent glassesmicrostructuresurface and bulk crystals |
| spellingShingle | Akram Beniaiche Aitana Tamayo Nabil Belkhir Fausto Rubio Abdellah Chorfa Juan Rubio Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses Crystals crystallization Y<sub>2</sub>O<sub>3</sub> multicomponent glasses microstructure surface and bulk crystals |
| title | Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses |
| title_full | Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses |
| title_fullStr | Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses |
| title_full_unstemmed | Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses |
| title_short | Effect of Y<sub>2</sub>O<sub>3</sub> Concentration on the Surface and Bulk Crystallization of Multicomponent Silicate Glasses |
| title_sort | effect of y sub 2 sub o sub 3 sub concentration on the surface and bulk crystallization of multicomponent silicate glasses |
| topic | crystallization Y<sub>2</sub>O<sub>3</sub> multicomponent glasses microstructure surface and bulk crystals |
| url | https://www.mdpi.com/2073-4352/14/3/214 |
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