Premium
Dispersion and Gelcasting of Zirconium Diboride through Aqueous Route
Author(s) -
Yin Jie,
Liu Xuejian,
Zhang Hui,
Yan Yongjie,
Huang Zhengren,
Yang Yong,
Jiang Dongliang
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02803.x
Subject(s) - materials science , dispersant , zirconium diboride , suspension (topology) , composite material , zirconium , slurry , aqueous solution , dispersion (optics) , zeta potential , flexural strength , adsorption , green body , chemical engineering , ceramic , nanoparticle , nanotechnology , metallurgy , chemistry , physics , mathematics , organic chemistry , engineering , homotopy , pure mathematics , optics
The dispersion of highly concentrated Zirconium diboride ( ZrB 2 ) suspension in aqueous media was investigated in terms of zeta potential and rheological measurements, with a salt of polyacrylate polymer ( SD ‐07) as dispersant. The adsorption behavior of SD ‐07 on ZrB 2 particle surface was also studied. Results showed that acid cleaning improved the fluidity of aqueous ZrB 2 slurry. Concentrated (up to 50 vol%) and well‐stabilized suspension was obtained in the alkaline pH region, with 0.60 mg/m 2 SD ‐07. On this basis, 50 vol% ZrB 2 gelcasting slurry was prepared. The linear shrinkage and flexural strength of as‐casted green body were (3.42 ± 0.13)% and (9.4 ± 0.3) MPa, respectively.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom