Evaluation on Died-Pressed Binders of Ti(C,N)-Based Cermet Powders

Abstract:

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The effect of died-pressed binders, such as polyvinyl alcohol (PVA), butyl sodium rubber (BSR) and paraffin wax (PW), on green strength, green density, dimensional stability, residue, sintered compact density and mechanical properties of Ti(C,N)-based cermet was investigated. It was found that the types of the binder had a significant impact on the characteristics of the green compact. PVA improved dimensional stability of the green compact due to interaction between binder and particle. The glass transition temperature (Tg) of PVA influenced the forming behavior of Ti(C,N)-based cermet powders during died-pressed processing. Some residual moisture was needed to obtain high green strength. PVA had a gradual burnout with a low char residue in nitrogen. Compared with PVA, the influence of binders BSR and PW was also presented and discussed.

Info:

Periodical:

Materials Science Forum (Volumes 471-472)

Edited by:

Xing Ai, Jianfeng Li and Chuanzhen Huang

Pages:

390-395

DOI:

10.4028/www.scientific.net/MSF.471-472.390

Citation:

C. Fan et al., "Evaluation on Died-Pressed Binders of Ti(C,N)-Based Cermet Powders", Materials Science Forum, Vols. 471-472, pp. 390-395, 2004

Online since:

December 2004

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Price:

$35.00

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