Porous Y2SiO5 ceramics with a centrosymmetric structure produced by freeze casting

Rubing Zhang; Bingyu Han; Daining Fang; Yuesheng Wang

doi:10.1016/j.ceramint.2015.05.099

Porous Y₂SiO₅ ceramics with a centrosymmetric structure produced by freeze casting

Rubing Zhang^*, Bingyu Han, Daining Fang, Yuesheng Wang

^*Corresponding author for this work

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

30 Citations (Scopus)

Abstract

A novel water-based freeze-casting technique was used to prepare porous yttrium silicate (Y₂SiO₅) ceramics. The formation mechanism of lamellar channels of porous ceramics that were arranged centrosymmetrically along the radial axis is discussed in this study. The effect of solid content on the pore structure, porosity, dielectric properties, and mechanical properties of porous Y₂SiO₅ ceramics were investigated. The increase in solid content reduced the porosity, decreased the pore size, and changed the pore structure. Upon increasing the solid content from 15 vol% to 30 vol%, the compressive strength and dielectric constant of the porous Y₂SiO₅ ceramics increased from 1.87 to 8.42 MPa and from 1.86 to 2.85, respectively. Porous Y₂SiO₅ ceramics with these properties can be used in ultra-high temperature broadband radome structures.

Original language	English
Pages (from-to)	11517-11522
Number of pages	6
Journal	Ceramics International
Volume	41
Issue number	9
DOIs	https://doi.org/10.1016/j.ceramint.2015.05.099
Publication status	Published - Nov 2015
Externally published	Yes

Keywords

C. Dielectric properties
C. Mechanical properties
Freeze casting
Porous ceramics

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10.1016/j.ceramint.2015.05.099

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title = "Porous Y2SiO5 ceramics with a centrosymmetric structure produced by freeze casting",

abstract = "A novel water-based freeze-casting technique was used to prepare porous yttrium silicate (Y2SiO5) ceramics. The formation mechanism of lamellar channels of porous ceramics that were arranged centrosymmetrically along the radial axis is discussed in this study. The effect of solid content on the pore structure, porosity, dielectric properties, and mechanical properties of porous Y2SiO5 ceramics were investigated. The increase in solid content reduced the porosity, decreased the pore size, and changed the pore structure. Upon increasing the solid content from 15 vol% to 30 vol%, the compressive strength and dielectric constant of the porous Y2SiO5 ceramics increased from 1.87 to 8.42 MPa and from 1.86 to 2.85, respectively. Porous Y2SiO5 ceramics with these properties can be used in ultra-high temperature broadband radome structures.",

keywords = "C. Dielectric properties, C. Mechanical properties, Freeze casting, Porous ceramics",

author = "Rubing Zhang and Bingyu Han and Daining Fang and Yuesheng Wang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

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doi = "10.1016/j.ceramint.2015.05.099",

language = "English",

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AU - Zhang, Rubing

AU - Han, Bingyu

AU - Fang, Daining

AU - Wang, Yuesheng

PY - 2015/11

Y1 - 2015/11

N2 - A novel water-based freeze-casting technique was used to prepare porous yttrium silicate (Y2SiO5) ceramics. The formation mechanism of lamellar channels of porous ceramics that were arranged centrosymmetrically along the radial axis is discussed in this study. The effect of solid content on the pore structure, porosity, dielectric properties, and mechanical properties of porous Y2SiO5 ceramics were investigated. The increase in solid content reduced the porosity, decreased the pore size, and changed the pore structure. Upon increasing the solid content from 15 vol% to 30 vol%, the compressive strength and dielectric constant of the porous Y2SiO5 ceramics increased from 1.87 to 8.42 MPa and from 1.86 to 2.85, respectively. Porous Y2SiO5 ceramics with these properties can be used in ultra-high temperature broadband radome structures.

AB - A novel water-based freeze-casting technique was used to prepare porous yttrium silicate (Y2SiO5) ceramics. The formation mechanism of lamellar channels of porous ceramics that were arranged centrosymmetrically along the radial axis is discussed in this study. The effect of solid content on the pore structure, porosity, dielectric properties, and mechanical properties of porous Y2SiO5 ceramics were investigated. The increase in solid content reduced the porosity, decreased the pore size, and changed the pore structure. Upon increasing the solid content from 15 vol% to 30 vol%, the compressive strength and dielectric constant of the porous Y2SiO5 ceramics increased from 1.87 to 8.42 MPa and from 1.86 to 2.85, respectively. Porous Y2SiO5 ceramics with these properties can be used in ultra-high temperature broadband radome structures.

KW - C. Dielectric properties

KW - C. Mechanical properties

KW - Freeze casting

KW - Porous ceramics

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DO - 10.1016/j.ceramint.2015.05.099

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SN - 0272-8842

VL - 41

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EP - 11522

JO - Ceramics International

JF - Ceramics International

IS - 9

ER -

Porous Y₂SiO₅ ceramics with a centrosymmetric structure produced by freeze casting

Abstract

Keywords

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