Preparation of Y-TZP Nanoceramics by Superhigh Pressure Compaction

Abstract

Abstract: The preparation of Y-TZP nano-ceramics by the superhigh pressure compaction was investigated.
By applying superhigh pressure of about 3GPa, a green compact with a relative density of about 60% can be obtained, 13% higher than that by a normal cold isostatic press of 450MPa. The
sintering ability of this green compact is so good that it can be sintered to 99% dense at a very low temperature of 1050℃. The relative
high density of the green compact rather than the small pore size makes the sintering ability excellent . Y-TZP nano-ceramics having the grain
size of about 80nm were obtained when sintered at 1050℃ for 5h after CIP of 3GPa.

Key words: superhigh pressure, CIP, nano-ceramics, Y-TZP

CLC Number:

TB383

GAO Lian,LI Wei,WANG Hong-Zhi,ZHOU Jun-Xue,CAO Zhen-Jun,ZHAI Qing-Zhen. Preparation of Y-TZP Nanoceramics by Superhigh Pressure Compaction[J]. Journal of Inorganic Materials.

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Preparation of Y-TZP Nanoceramics by Superhigh Pressure Compaction

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