Effects of the binder compositions on the homogeneity of ceramic injection molded compacts

Wen, Jiaxin1; Liu, Wei2; Xie, Zhipeng3; Lou, Chaogang4; Yang, Xianfeng5

2018-02-15

10.1016/j.ceramint.2017.11.093

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

In this study, the effects of different binder compositions on the homogeneity of injection molded ceramic compacts are discussed from the standpoint of the rheological properties of the feedstocks, density, density deviation, and flexural strength of the as-prepared compacts, and the microstructures of the as-prepared compacts, compacts after solvent debinding, and compacts after thermal debinding. Also the pore size distribution of the compact after thermal debinding was characterized to examine the distribution of the binders in the as prepare compacts. The feedstock with 30% macromolecular binders attains the minimum power-law index n value at 160 degrees C, hence it is the most appropriate feedstock for injection molding. The optimal composition is feedstock B30, which is the most homogeneous at an injection temperature of 160 degrees C. The macromolecular binder-to-PW weight ratio of 3:7 allows best mixing of feedstock and more homogeneous binder distribution. B30 has the highest density, the lowest density deviation and the lowest deviations in flexural strength of the as prepared compact. Compacts prepared with B30 have the most homogenous pore size distribution after thermal debinding, as determined from the sharp, narrow peaks on the pore size distribution curves.

A: Injection molding B: Defects Microstructure-final C: Mechanical properties Homogeneity

SCI ; EI

英语

第一

Science and Technology Project of Guangdong Province[2017A010103046]

Materials Science

Materials Science, Ceramics

WOS:000423891900077

ELSEVIER SCI LTD

20174804471286

Bending strength ; Binders ; Ceramic materials ; Feedstocks ; Macromolecules ; Microstructure ; Pore size ; Size distribution

Chemical Agents and Basic Industrial Chemicals:803 ; Ceramics:812.1 ; Polymeric Materials:815.1 ; Mathematical Statistics:922.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China
3.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
4.Southeast Univ, Dept Elect & Elect Engn, Nanjing 210096, Jiangsu, Peoples R China
5.Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China

Wen, Jiaxin,Liu, Wei,Xie, Zhipeng,et al. Effects of the binder compositions on the homogeneity of ceramic injection molded compacts[J]. CERAMICS INTERNATIONAL,2018,44(3):3218-3225.

Wen, Jiaxin,Liu, Wei,Xie, Zhipeng,Lou, Chaogang,&Yang, Xianfeng.(2018).Effects of the binder compositions on the homogeneity of ceramic injection molded compacts.CERAMICS INTERNATIONAL,44(3),3218-3225.

Wen, Jiaxin,et al."Effects of the binder compositions on the homogeneity of ceramic injection molded compacts".CERAMICS INTERNATIONAL 44.3(2018):3218-3225.