Fabrication of highly porous mullite microspheres via oil-drop molding accompanied by freeze casting

Zhaoping Hou; Biao Zhang; Rui Zhang; Liangliang Liu

doi:10.1016/j.ceramint.2017.04.012

Fabrication of highly porous mullite microspheres via oil-drop molding accompanied by freeze casting

Zhaoping Hou^*
, Biao Zhang
, Rui Zhang
, Liangliang Liu

^*Corresponding author for this work

Taiyuan University of Technology
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Porous mullite microspheres with a highly open porosity and average diameter of more than 800 µm were fabricated via an oil-drop molding method accompanied by a freeze casting process. After sintering, a highly porous structure was formed due to interlocking whisker-shaped mullite grains and formation of interconnected skeletons during the freeze-casting process. Additionally, it was found that a high porosity and large pore size in the microspheres green bodies are favorable for the synthesis of mullite whiskers with high aspect ratio.

Original language	English
Pages (from-to)	8809-8812
Number of pages	4
Journal	Ceramics International
Volume	43
Issue number	12
DOIs	https://doi.org/10.1016/j.ceramint.2017.04.012
State	Published - 15 Aug 2017
Externally published	Yes

Keywords

Freeze casting
Mullite
Porous microspheres
Porous structure

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10.1016/j.ceramint.2017.04.012

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title = "Fabrication of highly porous mullite microspheres via oil-drop molding accompanied by freeze casting",

abstract = "Porous mullite microspheres with a highly open porosity and average diameter of more than 800 µm were fabricated via an oil-drop molding method accompanied by a freeze casting process. After sintering, a highly porous structure was formed due to interlocking whisker-shaped mullite grains and formation of interconnected skeletons during the freeze-casting process. Additionally, it was found that a high porosity and large pore size in the microspheres green bodies are favorable for the synthesis of mullite whiskers with high aspect ratio.",

keywords = "Freeze casting, Mullite, Porous microspheres, Porous structure",

author = "Zhaoping Hou and Biao Zhang and Rui Zhang and Liangliang Liu",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = aug,

day = "15",

doi = "10.1016/j.ceramint.2017.04.012",

language = "英语",

volume = "43",

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TY - JOUR

T1 - Fabrication of highly porous mullite microspheres via oil-drop molding accompanied by freeze casting

AU - Hou, Zhaoping

AU - Zhang, Biao

AU - Zhang, Rui

AU - Liu, Liangliang

PY - 2017/8/15

Y1 - 2017/8/15

N2 - Porous mullite microspheres with a highly open porosity and average diameter of more than 800 µm were fabricated via an oil-drop molding method accompanied by a freeze casting process. After sintering, a highly porous structure was formed due to interlocking whisker-shaped mullite grains and formation of interconnected skeletons during the freeze-casting process. Additionally, it was found that a high porosity and large pore size in the microspheres green bodies are favorable for the synthesis of mullite whiskers with high aspect ratio.

AB - Porous mullite microspheres with a highly open porosity and average diameter of more than 800 µm were fabricated via an oil-drop molding method accompanied by a freeze casting process. After sintering, a highly porous structure was formed due to interlocking whisker-shaped mullite grains and formation of interconnected skeletons during the freeze-casting process. Additionally, it was found that a high porosity and large pore size in the microspheres green bodies are favorable for the synthesis of mullite whiskers with high aspect ratio.

KW - Freeze casting

KW - Mullite

KW - Porous microspheres

KW - Porous structure

UR - https://www.scopus.com/pages/publications/85017157617

U2 - 10.1016/j.ceramint.2017.04.012

DO - 10.1016/j.ceramint.2017.04.012

M3 - 文章

AN - SCOPUS:85017157617

SN - 0272-8842

VL - 43

SP - 8809

EP - 8812

JO - Ceramics International

JF - Ceramics International

IS - 12

ER -

Fabrication of highly porous mullite microspheres via oil-drop molding accompanied by freeze casting

Abstract

Keywords

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