Title of article
Gelcasting of alumina with a mixed PVP–MAM system
Author/Authors
Jingtao Ma، نويسنده , , Zhongzhou Yi، نويسنده , , Zhipeng Xie، نويسنده , , Longjie Zhou، نويسنده , , Hezhuo Miao، نويسنده , , Baoqing Zhang، نويسنده , , Xuping Lin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
5
From page
1015
To page
1019
Abstract
A common and fatal problem of the low-toxicity gelcasting is the low flexural strength of green bodies. The objective of this study was to solve the problem by introducing water-soluble polyvinylpyrrolidone (PVP) polymer to the monomer system. The low-toxicity monomer and ceramic powder were selected as methacrylamide (MAM) and alumina, respectively. Flexural strength of green bodies was improved nearly by 30%, with no significant change in the property of sintered bodies when the addition amount of PVP is 2.8 wt.%. Influence of PVP content on rheological properties of alumina suspensions, their gelation time, and the microstructure of green and sintered bodies were investigated.
Keywords
D. Alumina , Polyvinylpyrrolidone , Methacrylamide , Gelcasting
Journal title
Ceramics International
Serial Year
2005
Journal title
Ceramics International
Record number
1269665
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