Dissertation/Thesis Abstract

Sol-Gel Synthesis of Lanthanide-Doped Aluminosilicate Glasses
by Bheemala, Veera Manesh, M.S., Southern Illinois University at Edwardsville, 2015, 58; 1601351
Abstract (Summary)

Doping Praseodymium into Al-Si glass has potential applications in permanent holographic data storage and other optical devices. For this we are using the sol-gel method to produce glass monoliths at relatively low temperatures. The silicon precursor is tetraethylorthosilicate (TEOS) and aluminum tri-sec butoxide (ATSB) is the aluminum precursor. TEOS is hydrolyzed in ethanol with HCl as a catalyst. ATSB is then added, as well as praseodymium chloride in water. To prevent cracking we use dimethyl formamide (DMF) as a drying control chemical additive (DCCA). The solution is poured into a polymethylpentene cylinder and maintained at 40°C and the temperature is raised to 150°C to dry and shrink the sample. Samples prepared by this method are amorphous, as indicated by X-ray diffraction. The final aim of this research is to produce optically clear, fracture less monoliths by varying aging, shape and drying conditions.

Indexing (document details)
Advisor: Voss, Eric J.
Commitee: Jones, Myron W., Shaw, Michael, Voss, Eric J.
School: Southern Illinois University at Edwardsville
Department: Chemistry
School Location: United States -- Illinois
Source: MAI 55/02M(E), Masters Abstracts International
Subjects: Chemistry, Inorganic chemistry
Keywords: Aluminosilicate, Gel, Glasses, Lanthanide-Doped, Sol-Gel
Publication Number: 1601351
ISBN: 9781339124971
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