{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T12:11:32Z","timestamp":1775823092614,"version":"3.50.1"},"reference-count":33,"publisher":"Wiley","license":[{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100006319","name":"Centre National pour la Recherche Scientifique et Technique","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100006319","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Spectroscopy"],"published-print":{"date-parts":[[2013]]},"abstract":"<jats:p>New phosphate glasses in the quaternary system (50-<jats:italic>x<\/jats:italic>) A<jats:sub>2<\/jats:sub>O-<jats:italic>x<\/jats:italic>WO<jats:sub>3<\/jats:sub>-10 Nb<jats:sub>2<\/jats:sub>O<jats:sub>5<\/jats:sub>-40 P<jats:sub>2<\/jats:sub>O<jats:sub>5<\/jats:sub>, with<jats:italic>x<\/jats:italic>= 0; 30 and A = Li or Na were prepared by the melt quenching method. The effect on the crystallization behaviour of the glass due to the introduction of WO<jats:sub>3<\/jats:sub>into the glass composition and, consequently, the diminishing of the molar amount of the alkaline oxide and the decreasing of the molar ratio between network modifiers and network formers (M\/F) was studied. The prepared glasses were heat-treated in air, at 550\u00b0C, 600\u00b0C, and 650\u00b0C for 4 hours. The structure, of the obtained samples, was studied by differential thermal analysis (DTA), X-ray powder diffraction (XRD), and Raman spectroscopy and the morphology by scanning electron microscopy (SEM). It was found that the replacement of Li<jats:sub>2<\/jats:sub>O or Na<jats:sub>2<\/jats:sub>O by WO<jats:sub>3<\/jats:sub>reduces the number of the crystallised phases. In the lithium-niobiophosphate glasses, the presence of WO<jats:sub>3<\/jats:sub>promotes the formation of NbOPO<jats:sub>4<\/jats:sub>instead of the LiNbO<jats:sub>3<\/jats:sub>phase and reduces the formation of ortho- and pyro-phosphate phases. The thermal treatments affect the arrangements of the network structure of the AW40-glasses.<\/jats:p>","DOI":"10.1155\/2013\/123519","type":"journal-article","created":{"date-parts":[[2012,11,4]],"date-time":"2012-11-04T16:00:16Z","timestamp":1352044816000},"page":"1-10","source":"Crossref","is-referenced-by-count":30,"title":["Raman Spectroscopy, X-Ray, SEM, and DTA Analysis of Alkali-Phosphate Glasses Containing<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:msub><mml:mrow><mml:mtext>WO<\/mml:mtext><\/mml:mrow><mml:mtext>3<\/mml:mtext><\/mml:msub><\/mml:mrow><\/mml:math>and Nb<sub>2<\/sub>O<sub>5<\/sub>"],"prefix":"10.1155","volume":"2013","author":[{"given":"L.","family":"Bih","sequence":"first","affiliation":[{"name":"Equipe Sciences de Mat\u00e9riaux, FST-Errachidia, Errachidia, Morocco"}]},{"given":"M.","family":"Azrour","sequence":"additional","affiliation":[{"name":"Equipe Sciences de Mat\u00e9riaux, FST-Errachidia, Errachidia, Morocco"}]},{"given":"B.","family":"Manoun","sequence":"additional","affiliation":[{"name":"Equipe Mat\u00e9riaux et Environnement, Laboratoire de Chimie Appliqu\u00e9e et Environnement, Universit\u00e9 Hassan 1er, Settat, Morocco"}]},{"given":"M. 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