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Title: Gelcasting methods

Abstract

A method of gelcasting includes the steps of providing a solution of at least hydroxymethylacrylamide (HMAM) and water. At least one inorganic powder is added to the mixture. At least one initiator system is provided to polymerize the HMAM. The initiator polymerizes the HMAM and water, to form a firm hydrogel that contains the inorganic powder. One or more comonomers can be polymerized with the HMAM monomer, to alter the final properties of the gelcast material. Additionally, one or more additives can be included in the polymerization mixture, to alter the properties of the gelcast material.

Inventors:
 [1];  [2];  [2];  [2];  [2];  [2]
  1. Oak Ridge, TN
  2. Knoxville, TN
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
873007
Patent Number(s):
6066279
Assignee:
Lockheed Martin Energy Research Corp. (Oak Ridge, TN)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gelcasting; methods; method; steps; providing; solution; hydroxymethylacrylamide; hmam; water; inorganic; powder; added; mixture; initiator; provided; polymerize; polymerizes; form; firm; hydrogel; contains; comonomers; polymerized; monomer; alter; final; properties; gelcast; material; additionally; additives; included; polymerization; organic powder; inorganic powder; gelcasting method; casting method; /264/419/

Citation Formats

Walls, Claudia A, Kirby, Glen H, Janney, Mark A, Omatete, Ogbemi O, Nunn, Stephen D, and McMillan, April D. Gelcasting methods. United States: N. p., 2000. Web.
Walls, Claudia A, Kirby, Glen H, Janney, Mark A, Omatete, Ogbemi O, Nunn, Stephen D, & McMillan, April D. Gelcasting methods. United States.
Walls, Claudia A, Kirby, Glen H, Janney, Mark A, Omatete, Ogbemi O, Nunn, Stephen D, and McMillan, April D. Sat . "Gelcasting methods". United States. https://www.osti.gov/servlets/purl/873007.
@article{osti_873007,
title = {Gelcasting methods},
author = {Walls, Claudia A and Kirby, Glen H and Janney, Mark A and Omatete, Ogbemi O and Nunn, Stephen D and McMillan, April D},
abstractNote = {A method of gelcasting includes the steps of providing a solution of at least hydroxymethylacrylamide (HMAM) and water. At least one inorganic powder is added to the mixture. At least one initiator system is provided to polymerize the HMAM. The initiator polymerizes the HMAM and water, to form a firm hydrogel that contains the inorganic powder. One or more comonomers can be polymerized with the HMAM monomer, to alter the final properties of the gelcast material. Additionally, one or more additives can be included in the polymerization mixture, to alter the properties of the gelcast material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}

Works referenced in this record:

Gelcasting of Sintered Reaction Bonded Silicon Nitride for Improved Mechanical Properties
book, January 1995

  • Maria, J. -P.; Kiggans, J. O.; Tiegs, T. N.
  • Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures—B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5
  • https://doi.org/10.1002/9780470314784.ch51

Gelcasting of silicon compositions for SRBSN
report, December 1995


Tailoring Suspension Flow for the Gelcasting of Oxide and Nonoxide Ceramics
journal, January 1994


Tensile Strength of Dried Gelcast Green Bodies
book, January 2008

  • Nunn, Stephen D.; Omatete, Ogbemi O.; Walls, Claudia A.
  • Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials—A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4
  • https://doi.org/10.1002/9780470314500.ch55

Green Machining of Gelcast Ceramic Materlals
book, January 2008

  • Nunn, Stephen D.; Kirby, Glen H.
  • Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures—A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3
  • https://doi.org/10.1002/9780470314821.ch24

Rheology of Zirconia-Alumina Gelcasting Slurries
journal, January 1992


Gelcasting: From laboratory development toward industrial production
journal, January 1997


Gelcasting of Alumina
journal, March 1991