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Title: Low-temperature synthesis of berlinite-bonded alumina ceramics.

Abstract

Alumina ceramics, in which berlinite (aluminum orthophosphate, AlPO{sub 4}) is the bonding phase, were synthesized at 150 C. Differential thermal analysis of a mixture of Al{sub 2}O{sub 3} and H{sub 3}PO{sub 4} solution indicated that a minimum temperature of 118 C was necessary for a chemical reaction to occur. Therefore, we hydrothermally cured a mixture of Al{sub 2}O{sub 3} and H{sub 3}PO{sub 4} solution between 130 C and 150 C to form a hard and dense berlinite-bonded alumina ceramic. The intermediate phase of aluminum phosphate hydrate (AlH{sub 3}(PO{sub 4}){sub 2}H{sub 2}O) was also identified. Physical and mechanical properties of this material are discussed.

Authors:
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
11185
Report Number(s):
ANL/ET/CP-97994
TRN: US0104343
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 101st Annual Meeting of the American Ceramic Society, Indianapolis, IN (US), 04/25/1999--04/28/1999; Other Information: PBD: 3 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ALUMINIUM OXIDES; ALUMINIUM PHOSPHATES; CERAMICS; CHEMICAL REACTIONS; DIFFERENTIAL THERMAL ANALYSIS; HYDRATES; MECHANICAL PROPERTIES; MIXTURES; SYNTHESIS; PHYSICAL PROPERTIES; WASTE FORMS

Citation Formats

Grover, S. E. Low-temperature synthesis of berlinite-bonded alumina ceramics.. United States: N. p., 1999. Web.
Grover, S. E. Low-temperature synthesis of berlinite-bonded alumina ceramics.. United States.
Grover, S. E. Tue . "Low-temperature synthesis of berlinite-bonded alumina ceramics.". United States. https://www.osti.gov/servlets/purl/11185.
@article{osti_11185,
title = {Low-temperature synthesis of berlinite-bonded alumina ceramics.},
author = {Grover, S. E.},
abstractNote = {Alumina ceramics, in which berlinite (aluminum orthophosphate, AlPO{sub 4}) is the bonding phase, were synthesized at 150 C. Differential thermal analysis of a mixture of Al{sub 2}O{sub 3} and H{sub 3}PO{sub 4} solution indicated that a minimum temperature of 118 C was necessary for a chemical reaction to occur. Therefore, we hydrothermally cured a mixture of Al{sub 2}O{sub 3} and H{sub 3}PO{sub 4} solution between 130 C and 150 C to form a hard and dense berlinite-bonded alumina ceramic. The intermediate phase of aluminum phosphate hydrate (AlH{sub 3}(PO{sub 4}){sub 2}H{sub 2}O) was also identified. Physical and mechanical properties of this material are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Conference:
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