Superfast densification of oxide ceramics by spark plasma sintering

Lian Gao; Jin Sheng Hong; Hiroki Miyamoto; Sebastian Eiaz De La Torre

Superfast densification of oxide ceramics by spark plasma sintering

Lian Gao, Jin Sheng Hong, Hiroki Miyamoto, Sebastian Eiaz De La Torre

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

Abstract

The SPS (Spark Plasma Sintering) process is a new materials synthesis processing technology recently developed by Sumitomo Coal Mining Co.Ltd., Japan. Some oxides such as Al₂O₃, Y-TZP, YAG, Al₂O₃-ZrO₂ and Mullite were successfully superfast densified by SPS under the conditions of heating rate as high as 600°C/min, no keeping time at the sintering temperatures above 1200°C, and then fast cooling to 600°C within 3 minutes. The superfast sintering samples show high densities, fine microstructures and excellent mechanical properties. The fracture toughness K_1c of 20mol% Al₂O₃-ZrO₂(3Y) samples sintered by SPS at >1250°C for 2 min is higher than 6MPa·m^1/2. The reaction sintering of ZrO₂- mullite could be completed by SPS at 1530°C for 3 min.

Original language	English
Pages (from-to)	22
Number of pages	1
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	13
Issue number	1
State	Published - 1998
Externally published	Yes

Keywords

Oxide ceramics
Spark plasma sintering
Superfast densification

Cite this

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title = "Superfast densification of oxide ceramics by spark plasma sintering",

abstract = "The SPS (Spark Plasma Sintering) process is a new materials synthesis processing technology recently developed by Sumitomo Coal Mining Co.Ltd., Japan. Some oxides such as Al2O3, Y-TZP, YAG, Al2O3-ZrO2 and Mullite were successfully superfast densified by SPS under the conditions of heating rate as high as 600°C/min, no keeping time at the sintering temperatures above 1200°C, and then fast cooling to 600°C within 3 minutes. The superfast sintering samples show high densities, fine microstructures and excellent mechanical properties. The fracture toughness K1c of 20mol% Al2O3-ZrO2(3Y) samples sintered by SPS at >1250°C for 2 min is higher than 6MPa·m1/2. The reaction sintering of ZrO2- mullite could be completed by SPS at 1530°C for 3 min.",

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author = "Lian Gao and Hong, {Jin Sheng} and Hiroki Miyamoto and {Eiaz De La Torre}, Sebastian",

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T1 - Superfast densification of oxide ceramics by spark plasma sintering

AU - Gao, Lian

AU - Hong, Jin Sheng

AU - Miyamoto, Hiroki

AU - Eiaz De La Torre, Sebastian

PY - 1998

Y1 - 1998

N2 - The SPS (Spark Plasma Sintering) process is a new materials synthesis processing technology recently developed by Sumitomo Coal Mining Co.Ltd., Japan. Some oxides such as Al2O3, Y-TZP, YAG, Al2O3-ZrO2 and Mullite were successfully superfast densified by SPS under the conditions of heating rate as high as 600°C/min, no keeping time at the sintering temperatures above 1200°C, and then fast cooling to 600°C within 3 minutes. The superfast sintering samples show high densities, fine microstructures and excellent mechanical properties. The fracture toughness K1c of 20mol% Al2O3-ZrO2(3Y) samples sintered by SPS at >1250°C for 2 min is higher than 6MPa·m1/2. The reaction sintering of ZrO2- mullite could be completed by SPS at 1530°C for 3 min.

AB - The SPS (Spark Plasma Sintering) process is a new materials synthesis processing technology recently developed by Sumitomo Coal Mining Co.Ltd., Japan. Some oxides such as Al2O3, Y-TZP, YAG, Al2O3-ZrO2 and Mullite were successfully superfast densified by SPS under the conditions of heating rate as high as 600°C/min, no keeping time at the sintering temperatures above 1200°C, and then fast cooling to 600°C within 3 minutes. The superfast sintering samples show high densities, fine microstructures and excellent mechanical properties. The fracture toughness K1c of 20mol% Al2O3-ZrO2(3Y) samples sintered by SPS at >1250°C for 2 min is higher than 6MPa·m1/2. The reaction sintering of ZrO2- mullite could be completed by SPS at 1530°C for 3 min.

KW - Oxide ceramics

KW - Spark plasma sintering

KW - Superfast densification

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M3 - Artículo

SN - 1000-324X

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JO - Wuji Cailiao Xuebao/Journal of Inorganic Materials

JF - Wuji Cailiao Xuebao/Journal of Inorganic Materials

IS - 1

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Superfast densification of oxide ceramics by spark plasma sintering

Abstract

Keywords

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