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Title: Process for slip casting textured tubular structures

Abstract

A process for centrifugal slip casting a textured hollow tube. A slip made up of a carrier fluid and a suspended powder is introduced into a porous mold which is rotated at a speed sufficient to create a centrifugal force that forces the slip radially outward toward the inner surface of the mold. The suspended powder, which is formed of particles having large dimensional aspect ratios such as particles of superconductive BSCCO, settles in a textured fashion radially outward toward the mold surface. The carrier fluid of the slip passes by capillary action radially outward around the settled particles and into the absorbent mold. A layer of mold release material is preferably centrifugally slip cast to cover the mold inner surface prior to the introduction of the BSCCO slip, and the mold release layer facilitates removal of the BSCCO greenbody from the mold without fracturing.

Inventors:
 [1];  [1];  [1]
  1. (West Lafayette, IN)
Publication Date:
Research Org.:
Purdue Research Foundation (West Lafayette, IN)
OSTI Identifier:
874192
Patent Number(s):
US 6335065
Assignee:
Purdue Research Foundation (West Lafayette, IN) CHO
DOE Contract Number:  
FG02-90ER45427
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; slip; casting; textured; tubular; structures; centrifugal; hollow; tube; carrier; fluid; suspended; powder; introduced; porous; mold; rotated; speed; sufficient; create; force; forces; radially; outward; inner; surface; formed; particles; dimensional; aspect; ratios; superconductive; bscco; settles; fashion; passes; capillary; action; settled; absorbent; layer; release; material; centrifugally; cast; cover; prior; introduction; facilitates; removal; greenbody; fracturing; capillary action; hollow tube; carrier fluid; tubular structure; /428/264/505/

Citation Formats

Steinlage, Greg A., Trumble, Kevin P., and Bowman, Keith J. Process for slip casting textured tubular structures. United States: N. p., 2002. Web.
Steinlage, Greg A., Trumble, Kevin P., & Bowman, Keith J. Process for slip casting textured tubular structures. United States.
Steinlage, Greg A., Trumble, Kevin P., and Bowman, Keith J. Tue . "Process for slip casting textured tubular structures". United States. https://www.osti.gov/servlets/purl/874192.
@article{osti_874192,
title = {Process for slip casting textured tubular structures},
author = {Steinlage, Greg A. and Trumble, Kevin P. and Bowman, Keith J.},
abstractNote = {A process for centrifugal slip casting a textured hollow tube. A slip made up of a carrier fluid and a suspended powder is introduced into a porous mold which is rotated at a speed sufficient to create a centrifugal force that forces the slip radially outward toward the inner surface of the mold. The suspended powder, which is formed of particles having large dimensional aspect ratios such as particles of superconductive BSCCO, settles in a textured fashion radially outward toward the mold surface. The carrier fluid of the slip passes by capillary action radially outward around the settled particles and into the absorbent mold. A layer of mold release material is preferably centrifugally slip cast to cover the mold inner surface prior to the introduction of the BSCCO slip, and the mold release layer facilitates removal of the BSCCO greenbody from the mold without fracturing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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