Pressureless spark plasma sintering of alumina micro-channel part produced by micro powder injection molding

Junhu Meng; Ngiap Hiang Loh; Bee Yen Tay; Shu Beng Tor; Gang Fu; Khiam Aik Khor; Ligen Yu

doi:10.1016/j.scriptamat.2010.10.016

Pressureless spark plasma sintering of alumina micro-channel part produced by micro powder injection molding

Junhu Meng^*, Ngiap Hiang Loh, Bee Yen Tay, Shu Beng Tor, Gang Fu, Khiam Aik Khor, Ligen Yu

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

Alumina micro-channel parts were produced by micro powder injection molding. The debound part was rapidly densified by pressuresless spark plasma sintering. Rapid densification of the micro-channel part proved to be feasible. Good shape retention and high densification were achieved for the final micro-channel part. The microstructural analysis revealed that fine-grained microstructures were obtained at the sintering temperatures of 1250-1300 °C. The nanoindentation tests showed that the nanohardness and Young's modulus were dependent on the porosity and grain size.

Original language	English
Pages (from-to)	237-240
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	3
DOIs	https://doi.org/10.1016/j.scriptamat.2010.10.016
Publication status	Published - Feb 2011
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Keywords

Ceramics
Micro powder injection molding
Microstructure
Spark plasma sintering

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10.1016/j.scriptamat.2010.10.016

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title = "Pressureless spark plasma sintering of alumina micro-channel part produced by micro powder injection molding",

abstract = "Alumina micro-channel parts were produced by micro powder injection molding. The debound part was rapidly densified by pressuresless spark plasma sintering. Rapid densification of the micro-channel part proved to be feasible. Good shape retention and high densification were achieved for the final micro-channel part. The microstructural analysis revealed that fine-grained microstructures were obtained at the sintering temperatures of 1250-1300 °C. The nanoindentation tests showed that the nanohardness and Young's modulus were dependent on the porosity and grain size.",

keywords = "Ceramics, Micro powder injection molding, Microstructure, Spark plasma sintering",

author = "Junhu Meng and Loh, {Ngiap Hiang} and Tay, {Bee Yen} and Tor, {Shu Beng} and Gang Fu and Khor, {Khiam Aik} and Ligen Yu",

year = "2011",

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doi = "10.1016/j.scriptamat.2010.10.016",

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TY - JOUR

T1 - Pressureless spark plasma sintering of alumina micro-channel part produced by micro powder injection molding

AU - Meng, Junhu

AU - Loh, Ngiap Hiang

AU - Tay, Bee Yen

AU - Tor, Shu Beng

AU - Fu, Gang

AU - Khor, Khiam Aik

AU - Yu, Ligen

PY - 2011/2

Y1 - 2011/2

N2 - Alumina micro-channel parts were produced by micro powder injection molding. The debound part was rapidly densified by pressuresless spark plasma sintering. Rapid densification of the micro-channel part proved to be feasible. Good shape retention and high densification were achieved for the final micro-channel part. The microstructural analysis revealed that fine-grained microstructures were obtained at the sintering temperatures of 1250-1300 °C. The nanoindentation tests showed that the nanohardness and Young's modulus were dependent on the porosity and grain size.

AB - Alumina micro-channel parts were produced by micro powder injection molding. The debound part was rapidly densified by pressuresless spark plasma sintering. Rapid densification of the micro-channel part proved to be feasible. Good shape retention and high densification were achieved for the final micro-channel part. The microstructural analysis revealed that fine-grained microstructures were obtained at the sintering temperatures of 1250-1300 °C. The nanoindentation tests showed that the nanohardness and Young's modulus were dependent on the porosity and grain size.

KW - Ceramics

KW - Micro powder injection molding

KW - Microstructure

KW - Spark plasma sintering

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DO - 10.1016/j.scriptamat.2010.10.016

M3 - Article

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SN - 1359-6462

VL - 64

SP - 237

EP - 240

JO - Scripta Materialia

JF - Scripta Materialia

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ER -

Pressureless spark plasma sintering of alumina micro-channel part produced by micro powder injection molding

Abstract

ASJC Scopus Subject Areas

Keywords

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