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Title

Production of dispersed nanometer sized YAG powders from alkoxide, nitrate and chloride precursors and spark plasma sintering to transparency

AuthorsSuárez, Marta ; Fernández, Adolfo ; Menéndez, José Luis ; Torrecillas, Ramón
KeywordsCeramic
Optical materials
Sol–gel process
Sintering
Optical properties
Issue DateMar-2010
PublisherElsevier
CitationJournal of Alloys and Compounds 493(1-2): 391-395 (2010)
AbstractYttrium aluminum garnet (YAG) was synthesized from different starting materials, i.e., alkoxide, nitrate and chloride precursors. The conversion steps from the precursors to crystalline YAG were studied by Raman spectroscopy. Dispersed YAG powders were formed at a relatively low temperature, around 800 °C by the chlorides route, whereas alkoxide precursors needed firing over 900 °C and nitrates even over 1100 °C. Lyophilized YAG gel was sintered to transparency by the spark plasma sintering method at 1500 °C with in-line transmittances close to 60% at 680 nm and over 80% in the infrared range.
Description5 páginas, 5 figuras.
Publisher version (URL)http://dx.doi.org/10.1016/j.jallcom.2009.12.108
URIhttp://hdl.handle.net/10261/43923
DOI10.1016/j.jallcom.2009.12.108
ISSN0925-8388
Appears in Collections:(CINN) Artículos
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