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Titolo:
Extrusion behavior of metal-ceramic composite pipes in multi-billet extrusion process
Autore:
Chen, ZC; Ikeda, K; Murakami, T; Takeda, T;
Indirizzi:
Yamagata Univ, Fac Engn, Dept Mech Syst Engn, Yonezawa, Yamagata 9928510, Japan Yamagata Univ Yonezawa Yamagata Japan 9928510 wa, Yamagata 9928510, Japan Tohoku Univ, Fac Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan TohokuUniv Sendai Miyagi Japan 9808579 oc, Sendai, Miyagi 9808579, Japan
Titolo Testata:
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
fascicolo: 2, volume: 114, anno: 2001,
pagine: 154 - 160
SICI:
0924-0136(20010720)114:2<154:EBOMCP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
COATINGS;
Keywords:
multi-billet extrusion; zirconia; stainless steel; composite pipe; powder; binder;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Chen, ZC Yamagata Univ, Fac Engn, Dept Mech Syst Engn, Jonan 4-3-16, Yonezawa, Yamagata 9928510, Japan Yamagata Univ Jonan 4-3-16 Yonezawa Yamagata Japan 9928510 Japan
Citazione:
Z.C. Chen et al., "Extrusion behavior of metal-ceramic composite pipes in multi-billet extrusion process", J MATER PR, 114(2), 2001, pp. 154-160

Abstract

Two-layer composite pipes consisting of zirconia and stainless steel were fabricated by a multi-billet extrusion (MBE) technique. The MBE process is characterized by coextruding different kinds of particulate pastes containing a water-based binder, joining them in chambers and finally obtaining a desired extrudate by means of dies. It is shown that sound extrudates can beobtained no matter what mixing ratios of zirconia and stainless steel powders in both inner and outer layers are used. The MBE requires a larger amount of binder compared to conventional rod extrusion. Furthermore, a better flowability is necessary for the outer layer than for the inner one in the extrusion process of a two-layer pipe, as a result of the characteristic structures of the extrusion dies. The amount of binder can be minimized by using mixed powder with a wider particle size distribution and a die with a longer land. It is effective to add a small amount of glycerol or use partially stabilized zirconia powder in restraining the crack formation in extrudates during drying period. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 18:31:48