Debinding from Thick Green Compact from Alumina and Dimensional Precision of Sintered Compact

Alumina fine powder (0.6 μm) is granulated by 3 mass% PVA. The granule admixed with liquid paraffin are formed by a single-action tooling to columnar-shaped green compact, diameter: 60 mm, height: 60 mm and mass: 450 g. Green density increases according to the content of liquid paraffin. Debinding o...

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Veröffentlicht in:Journal of the Japan Society of Powder and Powder Metallurgy 2005, Vol.52(5), pp.334-338
Hauptverfasser: Takahashi, Seizo, Shindoh, Takanori, Katsuta, Mototsugu, Yamada, Tadashi
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container_end_page 338
container_issue 5
container_start_page 334
container_title Journal of the Japan Society of Powder and Powder Metallurgy
container_volume 52
creator Takahashi, Seizo
Shindoh, Takanori
Katsuta, Mototsugu
Yamada, Tadashi
description Alumina fine powder (0.6 μm) is granulated by 3 mass% PVA. The granule admixed with liquid paraffin are formed by a single-action tooling to columnar-shaped green compact, diameter: 60 mm, height: 60 mm and mass: 450 g. Green density increases according to the content of liquid paraffin. Debinding of green compact admixed with a lot of liquid paraffin is succeeded without cracking on compact by thermal debinding technique after extracting liquid paraffin in an organic solvent to pre-baked compact. Sintered density and dimensional precision of sintered compact formed by flow compaction are improved by liquid paraffin content of 7.5 mass% and by compacting pressure of 98 MPa.
doi_str_mv 10.2497/jjspm.52.334
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source J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Alumina granule
Dimensional precision
Flow compaction
Liquid paraffin
Sintered density
Thick sintered compact
title Debinding from Thick Green Compact from Alumina and Dimensional Precision of Sintered Compact
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