Synthesis of /spl beta/"-Al/sub 2/O/sub 3/ polymer precursor and its pyrolysis to ultrafine /spl beta/"-Al/sub 2/O/sub 3/ powders [AMTEC applications]

/spl beta/"-alumina, an important high-temperature solid electrolyte for alkali metal thermoelectric conversion (AMTEC) applications, was synthesized in ultrafine particle form from inexpensive starting materials via a polymeric, metalloorganic precursor. The precursor, made by reacting NaOH, L...

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Bibliographic Details
Main Authors: Treadwell, D.R., Sutorik, A.C., Siew Siang Neo, Laine, R.M., Svedberg, R.C.
Format: Conference Proceeding
Language:English
Subjects:
Anti-freeze
Ethanol
Inorganic materials
Polymers
Powders
Solids
Solvents
Temperature
Thermoelectricity
X-ray diffraction
Online Access:Request full text
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Summary:/spl beta/"-alumina, an important high-temperature solid electrolyte for alkali metal thermoelectric conversion (AMTEC) applications, was synthesized in ultrafine particle form from inexpensive starting materials via a polymeric, metalloorganic precursor. The precursor, made by reacting NaOH, LiOH, and Al(OH)/sub 3/ with triethanolamine (TEA) in ethylene glycol (EG) while distilling off product water, is a glassy thermoplastic at room temperature, and dissolves in polar solvents, e.g. ethanol. Spheroidal, nonagglomerated particles of
DOI:10.1109/IECEC.1997.661941