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Title: Microwave sintering of complex shapes: From multiphysics simulation to improvements of process scalability

Journal Article · · Journal of the American Ceramic Society
DOI:https://doi.org/10.1111/jace.15892· OSTI ID:1611088
ORCiD logo [1];  [1];  [2]
  1. San Diego State Univ., CA (United States)
  2. San Diego State Univ., CA (United States) ; Univ. of California, San Diego, CA (United States)

Abstract The microwave sintering homogeneity of large and complex shape specimens is analyzed. A new approach enabling the fabrication of complex shapes ceramics via 3D printing and microwave sintering is presented. The use of a dental microwave cavity is shown to enable a substantial level of densification of complex shape components while restricting the grain growth. The homogeneity of the processed samples during microwave sintering is studied by an electromagnetic‐thermal‐mechanical simulation. The realistic densification behavior, that phenomenologically takes into account the microwave effect, is included in the modeling framework. The simulation indicates the sharp correlation between the microwave field distribution in the cavity, the temperature profile, and the specimen's shape distortion.

Research Organization:
San Diego State Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0008581; DE‐SC0008581
OSTI ID:
1611088
Alternate ID(s):
OSTI ID: 1459041
Journal Information:
Journal of the American Ceramic Society, Vol. 102, Issue 2; ISSN 0002-7820
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (2)

Microwave processing and characterization of nickel powder based metal matrix composite castings journal May 2019
Microwave Sintering of Alumina at 915 MHz: Modeling, Process Control, and Microstructure Distribution journal August 2019

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