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Title: Chemically bonded phospho-silicate ceramics

Abstract

A chemically bonded phospho-silicate ceramic formed by chemically reacting a monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and a sparsely soluble oxide, with a sparsely soluble silicate in an aqueous solution. The monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and sparsely soluble oxide are both in powder form and combined in a stochiometric molar ratio range of (0.5-1.5):1 to form a binder powder. Similarly, the sparsely soluble silicate is also in powder form and mixed with the binder powder to form a mixture. Water is added to the mixture to form a slurry. The water comprises 50% by weight of the powder mixture in said slurry. The slurry is allowed to harden. The resulting chemically bonded phospho-silicate ceramic exhibits high flexural strength, high compression strength, low porosity and permeability to water, has a definable and bio-compatible chemical composition, and is readily and easily colored to almost any desired shade or hue.

Inventors:
 [1];  [2];  [3];  [3]
  1. (Orland Park, IL)
  2. (Westmont, IL)
  3. (Chicago, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
875040
Patent Number(s):
6518212
Assignee:
The University of Chicago (Chicago, IL) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
chemically; bonded; phospho-silicate; ceramics; ceramic; formed; reacting; monovalent; alkali; metal; phosphate; ammonium; hydrogen; sparsely; soluble; oxide; silicate; aqueous; solution; powder; form; combined; stochiometric; molar; ratio; range; 05-151; binder; similarly; mixed; mixture; water; added; slurry; 50; weight; allowed; harden; resulting; exhibits; flexural; strength; compression; porosity; permeability; definable; bio-compatible; chemical; composition; readily; easily; colored; shade; hue; alkali metal; aqueous solution; powder mixture; powder form; chemically react; chemically bond; hydrogen ph; ceramic form; /501/

Citation Formats

Wagh, Arun S., Jeong, Seung Y., Lohan, Dirk, and Elizabeth, Anne. Chemically bonded phospho-silicate ceramics. United States: N. p., 2003. Web.
Wagh, Arun S., Jeong, Seung Y., Lohan, Dirk, & Elizabeth, Anne. Chemically bonded phospho-silicate ceramics. United States.
Wagh, Arun S., Jeong, Seung Y., Lohan, Dirk, and Elizabeth, Anne. Wed . "Chemically bonded phospho-silicate ceramics". United States. https://www.osti.gov/servlets/purl/875040.
@article{osti_875040,
title = {Chemically bonded phospho-silicate ceramics},
author = {Wagh, Arun S. and Jeong, Seung Y. and Lohan, Dirk and Elizabeth, Anne},
abstractNote = {A chemically bonded phospho-silicate ceramic formed by chemically reacting a monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and a sparsely soluble oxide, with a sparsely soluble silicate in an aqueous solution. The monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and sparsely soluble oxide are both in powder form and combined in a stochiometric molar ratio range of (0.5-1.5):1 to form a binder powder. Similarly, the sparsely soluble silicate is also in powder form and mixed with the binder powder to form a mixture. Water is added to the mixture to form a slurry. The water comprises 50% by weight of the powder mixture in said slurry. The slurry is allowed to harden. The resulting chemically bonded phospho-silicate ceramic exhibits high flexural strength, high compression strength, low porosity and permeability to water, has a definable and bio-compatible chemical composition, and is readily and easily colored to almost any desired shade or hue.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

Patent:

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