Refractory self-reinforced Y-α-SiAlON with barium aluminosilicate glass ceramic addition

Feng Ye; Limeng Liu; Haijiao Zhang; Yu Zhou

doi:10.1016/j.msea.2007.11.036

Refractory self-reinforced Y-α-SiAlON with barium aluminosilicate glass ceramic addition

Feng Ye^*
, Limeng Liu
, Haijiao Zhang
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology

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

7 Scopus citations

Abstract

Refractory Y-α-SiAlONs with elongated microstructure were obtained by hot pressing and post-heat treatment using BaAl₂Si₂O₈ (BAS) as an additive. The results showed that BAS not only served as a liquid phase sintering aid to promote densification, but also facilitated the development of elongated α-sialon grains, resulting in excellent room and high-temperature mechanical properties. Increasing the amount of BAS addition and post-heat treatment could further effectively promote the anisotropic growth of α-SiAlON grains, the room-temperature flexural strength and fracture toughness of 10 wt% BAS/Y-α-SiAlON could reach 634 MPa and 7.2 MPa m^1/2, respectively. The resultant materials could maintain the room strength up to 1400 °C due to the extensive crystallization of BAS.

Original language	English
Pages (from-to)	352-357
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	488
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.11.036
State	Published - 15 Aug 2008
Externally published	Yes

Keywords

Barium aluminosilicate
Elongated grains
Mechanical properties
Microstructure
α-SiAlON

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10.1016/j.msea.2007.11.036

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@article{937fe819bd4f4a62abe02f3fa44db3c9,

title = "Refractory self-reinforced Y-α-SiAlON with barium aluminosilicate glass ceramic addition",

abstract = "Refractory Y-α-SiAlONs with elongated microstructure were obtained by hot pressing and post-heat treatment using BaAl2Si2O8 (BAS) as an additive. The results showed that BAS not only served as a liquid phase sintering aid to promote densification, but also facilitated the development of elongated α-sialon grains, resulting in excellent room and high-temperature mechanical properties. Increasing the amount of BAS addition and post-heat treatment could further effectively promote the anisotropic growth of α-SiAlON grains, the room-temperature flexural strength and fracture toughness of 10 wt\% BAS/Y-α-SiAlON could reach 634 MPa and 7.2 MPa m1/2, respectively. The resultant materials could maintain the room strength up to 1400 °C due to the extensive crystallization of BAS.",

keywords = "Barium aluminosilicate, Elongated grains, Mechanical properties, Microstructure, α-SiAlON",

author = "Feng Ye and Limeng Liu and Haijiao Zhang and Yu Zhou",

year = "2008",

month = aug,

day = "15",

doi = "10.1016/j.msea.2007.11.036",

language = "英语",

volume = "488",

pages = "352--357",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

number = "1-2",

}

TY - JOUR

T1 - Refractory self-reinforced Y-α-SiAlON with barium aluminosilicate glass ceramic addition

AU - Ye, Feng

AU - Liu, Limeng

AU - Zhang, Haijiao

AU - Zhou, Yu

PY - 2008/8/15

Y1 - 2008/8/15

N2 - Refractory Y-α-SiAlONs with elongated microstructure were obtained by hot pressing and post-heat treatment using BaAl2Si2O8 (BAS) as an additive. The results showed that BAS not only served as a liquid phase sintering aid to promote densification, but also facilitated the development of elongated α-sialon grains, resulting in excellent room and high-temperature mechanical properties. Increasing the amount of BAS addition and post-heat treatment could further effectively promote the anisotropic growth of α-SiAlON grains, the room-temperature flexural strength and fracture toughness of 10 wt% BAS/Y-α-SiAlON could reach 634 MPa and 7.2 MPa m1/2, respectively. The resultant materials could maintain the room strength up to 1400 °C due to the extensive crystallization of BAS.

AB - Refractory Y-α-SiAlONs with elongated microstructure were obtained by hot pressing and post-heat treatment using BaAl2Si2O8 (BAS) as an additive. The results showed that BAS not only served as a liquid phase sintering aid to promote densification, but also facilitated the development of elongated α-sialon grains, resulting in excellent room and high-temperature mechanical properties. Increasing the amount of BAS addition and post-heat treatment could further effectively promote the anisotropic growth of α-SiAlON grains, the room-temperature flexural strength and fracture toughness of 10 wt% BAS/Y-α-SiAlON could reach 634 MPa and 7.2 MPa m1/2, respectively. The resultant materials could maintain the room strength up to 1400 °C due to the extensive crystallization of BAS.

KW - Barium aluminosilicate

KW - Elongated grains

KW - Mechanical properties

KW - Microstructure

KW - α-SiAlON

UR - https://www.scopus.com/pages/publications/44049086565

U2 - 10.1016/j.msea.2007.11.036

DO - 10.1016/j.msea.2007.11.036

M3 - 文章

AN - SCOPUS:44049086565

SN - 0921-5093

VL - 488

SP - 352

EP - 357

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Refractory self-reinforced Y-α-SiAlON with barium aluminosilicate glass ceramic addition

Abstract

Keywords

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