Pulse current pressure sintering of al/al2O3 functional graded material

Takekazu Nagae; Mai Mizubayashi; Masaru Yokota; Masateru Nose; Tomoaki Ishiguro; Shigeoki Saji

doi:10.1016/B978-008044504-5/50062-3

Pulse current pressure sintering of al/al₂O₃ functional graded material

Takekazu Nagae^*, Mai Mizubayashi, Masaru Yokota, Masateru Nose, Tomoaki Ishiguro, Shigeoki Saji

^*Corresponding author for this work

Department of Art and Design

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

1 Scopus citations

Abstract

This chapter discusses the pulse current pressure sintering on hardness and thermal expansion of Al/Al₂O₃ functionally graded material (FGM) This FGM consists of an aluminum layer, an α- Al₂ O₃ layer and seven intermediate layers between the two outermost layers. Aluminum and Al (OH)₃ powders are used as starting materials. Al (OH)₃ powder transformed into several types of Al₂ O₃ after the sintering process. The hardness of the intermediate layers gradually increased in proportion to the volume fraction of γ-A L₂ O₃. The top layer, which consists of α-A l₂ O₃, is about 1000 HV on average and 1500 HV at the surface. One feasible technique to improve the thermal resistance of aluminum alloy is to combine it with ceramics, which have high thermal resistance such as alumina, but the difference in the rate of thermal expansion between aluminum and alumina creates an obstacle to use them together.

Original language	English
Title of host publication	Novel Materials Processing by Advanced Electromagnetic Energy Sources
Publisher	Elsevier
Pages	301-304
Number of pages	4
ISBN (Print)	9780080445045
DOIs	https://doi.org/10.1016/B978-008044504-5/50062-3
State	Published - 2005

ASJC Scopus subject areas

General Energy

Access to Document

10.1016/B978-008044504-5/50062-3

Cite this

@inbook{af23ff7c6af44e478e1e66013f778a2e,

title = "Pulse current pressure sintering of al/al2O3 functional graded material",

abstract = "This chapter discusses the pulse current pressure sintering on hardness and thermal expansion of Al/Al2O3 functionally graded material (FGM) This FGM consists of an aluminum layer, an α- Al2 O3 layer and seven intermediate layers between the two outermost layers. Aluminum and Al (OH)3 powders are used as starting materials. Al (OH)3 powder transformed into several types of Al2 O3 after the sintering process. The hardness of the intermediate layers gradually increased in proportion to the volume fraction of γ-A L2 O3. The top layer, which consists of α-A l2 O3, is about 1000 HV on average and 1500 HV at the surface. One feasible technique to improve the thermal resistance of aluminum alloy is to combine it with ceramics, which have high thermal resistance such as alumina, but the difference in the rate of thermal expansion between aluminum and alumina creates an obstacle to use them together.",

author = "Takekazu Nagae and Mai Mizubayashi and Masaru Yokota and Masateru Nose and Tomoaki Ishiguro and Shigeoki Saji",

year = "2005",

doi = "10.1016/B978-008044504-5/50062-3",

language = "英語",

isbn = "9780080445045",

pages = "301--304",

booktitle = "Novel Materials Processing by Advanced Electromagnetic Energy Sources",

publisher = "Elsevier",

}

TY - CHAP

T1 - Pulse current pressure sintering of al/al2O3 functional graded material

AU - Nagae, Takekazu

AU - Mizubayashi, Mai

AU - Yokota, Masaru

AU - Nose, Masateru

AU - Ishiguro, Tomoaki

AU - Saji, Shigeoki

PY - 2005

Y1 - 2005

N2 - This chapter discusses the pulse current pressure sintering on hardness and thermal expansion of Al/Al2O3 functionally graded material (FGM) This FGM consists of an aluminum layer, an α- Al2 O3 layer and seven intermediate layers between the two outermost layers. Aluminum and Al (OH)3 powders are used as starting materials. Al (OH)3 powder transformed into several types of Al2 O3 after the sintering process. The hardness of the intermediate layers gradually increased in proportion to the volume fraction of γ-A L2 O3. The top layer, which consists of α-A l2 O3, is about 1000 HV on average and 1500 HV at the surface. One feasible technique to improve the thermal resistance of aluminum alloy is to combine it with ceramics, which have high thermal resistance such as alumina, but the difference in the rate of thermal expansion between aluminum and alumina creates an obstacle to use them together.

AB - This chapter discusses the pulse current pressure sintering on hardness and thermal expansion of Al/Al2O3 functionally graded material (FGM) This FGM consists of an aluminum layer, an α- Al2 O3 layer and seven intermediate layers between the two outermost layers. Aluminum and Al (OH)3 powders are used as starting materials. Al (OH)3 powder transformed into several types of Al2 O3 after the sintering process. The hardness of the intermediate layers gradually increased in proportion to the volume fraction of γ-A L2 O3. The top layer, which consists of α-A l2 O3, is about 1000 HV on average and 1500 HV at the surface. One feasible technique to improve the thermal resistance of aluminum alloy is to combine it with ceramics, which have high thermal resistance such as alumina, but the difference in the rate of thermal expansion between aluminum and alumina creates an obstacle to use them together.

UR - http://www.scopus.com/inward/record.url?scp=84884454316&partnerID=8YFLogxK

U2 - 10.1016/B978-008044504-5/50062-3

DO - 10.1016/B978-008044504-5/50062-3

M3 - 章

AN - SCOPUS:84884454316

SN - 9780080445045

SP - 301

EP - 304

BT - Novel Materials Processing by Advanced Electromagnetic Energy Sources

PB - Elsevier