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Title: Advanced powder processing

Abstract

Gelcasting is an advanced powder forming process. It is most commonly used to form ceramic or metal powders into complex, near-net shapes. Turbine rotors, gears, nozzles, and crucibles have been successfully gelcast in silicon nitride, alumina, nickel-based superalloy, and several steels. Gelcasting can also be used to make blanks that can be green machined to near-net shape and then high fired. Green machining has been successfully applied to both ceramic and metal gelcast blanks. Recently, the authors have used gelcasting to make tooling for metal casting applications. Most of the work has centered on H13 tool steel. They have demonstrated an ability to gelcast and sinter H13 to near net shape for metal casting tooling. Also, blanks of H13 have been cast, green machined into complex shape, and fired. Issues associated with forming, binder burnout, and sintering are addressed.

Authors:
 [1]
  1. Oak Ridge National Lab., TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
494128
Report Number(s):
ORNL/TM-13399
ON: DE97005392; TRN: 97:003310-0024
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Apr 1997; Related Information: Is Part Of Advanced Industrial Materials (AIM) program. Annual progress report. FY 1996; PB: 292 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; STEELS; CASTING; CASTING MOLDS; PROGRESS REPORT; GELS; POWDER METALLURGY

Citation Formats

Janney, M. A. Advanced powder processing. United States: N. p., 1997. Web. doi:10.2172/494128.
Janney, M. A. Advanced powder processing. United States. https://doi.org/10.2172/494128
Janney, M. A. 1997. "Advanced powder processing". United States. https://doi.org/10.2172/494128. https://www.osti.gov/servlets/purl/494128.
@article{osti_494128,
title = {Advanced powder processing},
author = {Janney, M. A.},
abstractNote = {Gelcasting is an advanced powder forming process. It is most commonly used to form ceramic or metal powders into complex, near-net shapes. Turbine rotors, gears, nozzles, and crucibles have been successfully gelcast in silicon nitride, alumina, nickel-based superalloy, and several steels. Gelcasting can also be used to make blanks that can be green machined to near-net shape and then high fired. Green machining has been successfully applied to both ceramic and metal gelcast blanks. Recently, the authors have used gelcasting to make tooling for metal casting applications. Most of the work has centered on H13 tool steel. They have demonstrated an ability to gelcast and sinter H13 to near net shape for metal casting tooling. Also, blanks of H13 have been cast, green machined into complex shape, and fired. Issues associated with forming, binder burnout, and sintering are addressed.},
doi = {10.2172/494128},
url = {https://www.osti.gov/biblio/494128}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 01 00:00:00 EST 1997},
month = {Tue Apr 01 00:00:00 EST 1997}
}