Freeform Fabrication of Zirconium Diboride Parts using Selective Laser Sintering

Ming-Chuan Leu; Erik B. Adamek; Tieshu Huang; Greg Hilmas; Fatih Dogan

Freeform Fabrication of Zirconium Diboride Parts using Selective Laser Sintering

Ming-Chuan Leu
, Erik B. Adamek
, Tieshu Huang
, Greg Hilmas
, Fatih Dogan

Research output: Contribution to journal › Article › peer-review

Abstract

Using the Selective Laser Sintering (SLS) process, both flexural test bars and 3D fuel injector components have been fabricated with zirconium diboride (ZrB ₂ ) powder. Stearic acid was selected as the binder. Values of SLS process parameters were chosen such that the green parts could be built with sharp geometrical features and that the sintered parts could have good mechanical properties. After binder burnout and sintering, the SLS fabricated ZrB ₂ test bars achieved 80% theoretical density, and the average flexural strength of the sintered samples was 195 MPa. These values demonstrate the feasibility of the SLS process for freeform fabrication of 3D parts with the ultra high temperature ceramic.

Original language	American English
Journal	Proceedings of the 19th Annual International Solid Freeform Fabrication Symposium (2008, Austin, TX)
State	Published - Aug 6 2008

Keywords

Binders
Mechanical properties
Sintering
Three dimensional
Zirconium compounds
Freeform fabrication
Geometrical features
Process parameters
Selective laser sintering
Sintered samples
Theoretical density
Ultra-high-temperature ceramics
Zirconium diboride
Laser heating

Disciplines

Ceramic Materials
Manufacturing

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Freeform Fabrication of Zirconium Diboride Parts using SelectiveFinal published version, 1.48 MBLicense: CC BY

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title = "Freeform Fabrication of Zirconium Diboride Parts using Selective Laser Sintering",

abstract = " Using the Selective Laser Sintering (SLS) process, both flexural test bars and 3D fuel injector components have been fabricated with zirconium diboride (ZrB 2 ) powder. Stearic acid was selected as the binder. Values of SLS process parameters were chosen such that the green parts could be built with sharp geometrical features and that the sintered parts could have good mechanical properties. After binder burnout and sintering, the SLS fabricated ZrB 2 test bars achieved 80\% theoretical density, and the average flexural strength of the sintered samples was 195 MPa. These values demonstrate the feasibility of the SLS process for freeform fabrication of 3D parts with the ultra high temperature ceramic.",

keywords = "Binders, Mechanical properties, Sintering, Three dimensional, Zirconium compounds, Freeform fabrication, Geometrical features, Process parameters, Selective laser sintering, Sintered samples, Theoretical density, Ultra-high-temperature ceramics, Zirconium diboride, Laser heating",

author = "Ming-Chuan Leu and Adamek, \{Erik B.\} and Tieshu Huang and Greg Hilmas and Fatih Dogan",

year = "2008",

month = aug,

day = "6",

language = "American English",

journal = "Proceedings of the 19th Annual International Solid Freeform Fabrication Symposium (2008, Austin, TX)",

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TY - JOUR

T1 - Freeform Fabrication of Zirconium Diboride Parts using Selective Laser Sintering

AU - Leu, Ming-Chuan

AU - Adamek, Erik B.

AU - Huang, Tieshu

AU - Hilmas, Greg

AU - Dogan, Fatih

PY - 2008/8/6

Y1 - 2008/8/6

N2 - Using the Selective Laser Sintering (SLS) process, both flexural test bars and 3D fuel injector components have been fabricated with zirconium diboride (ZrB 2 ) powder. Stearic acid was selected as the binder. Values of SLS process parameters were chosen such that the green parts could be built with sharp geometrical features and that the sintered parts could have good mechanical properties. After binder burnout and sintering, the SLS fabricated ZrB 2 test bars achieved 80% theoretical density, and the average flexural strength of the sintered samples was 195 MPa. These values demonstrate the feasibility of the SLS process for freeform fabrication of 3D parts with the ultra high temperature ceramic.

AB - Using the Selective Laser Sintering (SLS) process, both flexural test bars and 3D fuel injector components have been fabricated with zirconium diboride (ZrB 2 ) powder. Stearic acid was selected as the binder. Values of SLS process parameters were chosen such that the green parts could be built with sharp geometrical features and that the sintered parts could have good mechanical properties. After binder burnout and sintering, the SLS fabricated ZrB 2 test bars achieved 80% theoretical density, and the average flexural strength of the sintered samples was 195 MPa. These values demonstrate the feasibility of the SLS process for freeform fabrication of 3D parts with the ultra high temperature ceramic.

KW - Binders

KW - Mechanical properties

KW - Sintering

KW - Three dimensional

KW - Zirconium compounds

KW - Freeform fabrication

KW - Geometrical features

KW - Process parameters

KW - Selective laser sintering

KW - Sintered samples

KW - Theoretical density

KW - Ultra-high-temperature ceramics

KW - Zirconium diboride

KW - Laser heating

UR - https://scholarsmine.mst.edu/mec_aereng_facwork/3638

M3 - Article

JO - Proceedings of the 19th Annual International Solid Freeform Fabrication Symposium (2008, Austin, TX)

JF - Proceedings of the 19th Annual International Solid Freeform Fabrication Symposium (2008, Austin, TX)

ER -

Freeform Fabrication of Zirconium Diboride Parts using Selective Laser Sintering

Abstract

Keywords

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