Preparation and physical properties of SrxLa 1-xMgAl11O19-0.5x

Huadong Yao; Qiang Xu; Ling Liu; Shizhen Zhu

doi:10.4028/www.scientific.net/AMR.105-106.403

Preparation and physical properties of Sr_xLa _1-xMgAl₁₁O_19-0.5x

Huadong Yao^*, Qiang Xu, Ling Liu, Shizhen Zhu

^*此作品的通讯作者

材料学院

Beijing Institute of Technology

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

1 引用（Scopus）

摘要

In order to further improve the thermal expansion coefficient of LaMgAl₁₁O₁₉, LaMgAl₁₁O₁₉with Sr ²⁺doped is designed to increase the density of oxygen vacancies, and the effect of doping Sr²⁺to hardness and toughness was studied. Sr_xLa_1-xMgAl₁₁O_19-0.5xpellets were synthesized by hot-pressing (1500°C, 40MPa). The relative density of LaMgAl₁₁O₁₉ reaches 97.68%. The hardness of LaMgAl ₁₁O₁₉ is about 25.47GPa and the fracture toughness is 11.3 MPa·m_1/2. The thermal expansion coefficient of LaMgAl ₁₁O₁₉was 8.71×10^-6K^-1, and Sr_0.6La_0.4MgAl₁₁O_18.7was 8.95×10^-6K^-1. The results showed hot-pressure sintering could synthesize dense Sr_xLa_1-xMgAl ₁₁O_19-0.5x with magnetoplumbite structure. Sr ²⁺doping could increase the thermal expansion coefficient of LaMgAl₁₁O₁₉.

源语言	英语
主期刊名	Chinese Ceramics Communications
页	403-405
页数	3
版本	1
DOI	https://doi.org/10.4028/www.scientific.net/AMR.105-106.403
出版状态	已出版 - 2010
活动	6th China International Conference on High-Performance Ceramics, CICC-6 - Harbin, 中国期限: 16 8月 2009 → 19 8月 2009

出版系列

姓名	Advanced Materials Research
编号	1
卷	105-106
ISSN（印刷版）	1022-6680

会议

会议	6th China International Conference on High-Performance Ceramics, CICC-6
国家/地区	中国
市	Harbin
时期	16/08/09 → 19/08/09

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10.4028/www.scientific.net/AMR.105-106.403

其它文件与链接

链接到 Scopus 的出版物

引用此

@inproceedings{689fa3e3fbc34b1d8f74290b56889a21,

title = "Preparation and physical properties of SrxLa 1-xMgAl11O19-0.5x",

abstract = "In order to further improve the thermal expansion coefficient of LaMgAl11O19, LaMgAl11O19with Sr 2+doped is designed to increase the density of oxygen vacancies, and the effect of doping Sr2+to hardness and toughness was studied. SrxLa1-xMgAl11O19-0.5xpellets were synthesized by hot-pressing (1500°C, 40MPa). The relative density of LaMgAl11O19 reaches 97.68%. The hardness of LaMgAl 11O19 is about 25.47GPa and the fracture toughness is 11.3 MPa·m1/2. The thermal expansion coefficient of LaMgAl 11O19was 8.71×10-6K-1, and Sr0.6La0.4MgAl11O18.7was 8.95×10-6K-1. The results showed hot-pressure sintering could synthesize dense SrxLa1-xMgAl 11O19-0.5x with magnetoplumbite structure. Sr 2+doping could increase the thermal expansion coefficient of LaMgAl11O19.",

keywords = "Hexa-aluminate, Hot-pressing, Thermal expansion coefficient",

author = "Huadong Yao and Qiang Xu and Ling Liu and Shizhen Zhu",

year = "2010",

doi = "10.4028/www.scientific.net/AMR.105-106.403",

language = "English",

isbn = "0878492755",

series = "Advanced Materials Research",

number = "1",

pages = "403--405",

booktitle = "Chinese Ceramics Communications",

edition = "1",

note = "6th China International Conference on High-Performance Ceramics, CICC-6 ; Conference date: 16-08-2009 Through 19-08-2009",

}

Yao, H, Xu, Q, Liu, L & Zhu, S 2010, Preparation and physical properties of Sr_xLa _1-xMgAl₁₁O_19-0.5x. 在 Chinese Ceramics Communications. 1 编辑, Advanced Materials Research, 号码 1, 卷 105-106, 页码 403-405, 6th China International Conference on High-Performance Ceramics, CICC-6, Harbin, 中国, 16/08/09. https://doi.org/10.4028/www.scientific.net/AMR.105-106.403

TY - GEN

T1 - Preparation and physical properties of SrxLa 1-xMgAl11O19-0.5x

AU - Yao, Huadong

AU - Xu, Qiang

AU - Liu, Ling

AU - Zhu, Shizhen

PY - 2010

Y1 - 2010

N2 - In order to further improve the thermal expansion coefficient of LaMgAl11O19, LaMgAl11O19with Sr 2+doped is designed to increase the density of oxygen vacancies, and the effect of doping Sr2+to hardness and toughness was studied. SrxLa1-xMgAl11O19-0.5xpellets were synthesized by hot-pressing (1500°C, 40MPa). The relative density of LaMgAl11O19 reaches 97.68%. The hardness of LaMgAl 11O19 is about 25.47GPa and the fracture toughness is 11.3 MPa·m1/2. The thermal expansion coefficient of LaMgAl 11O19was 8.71×10-6K-1, and Sr0.6La0.4MgAl11O18.7was 8.95×10-6K-1. The results showed hot-pressure sintering could synthesize dense SrxLa1-xMgAl 11O19-0.5x with magnetoplumbite structure. Sr 2+doping could increase the thermal expansion coefficient of LaMgAl11O19.

AB - In order to further improve the thermal expansion coefficient of LaMgAl11O19, LaMgAl11O19with Sr 2+doped is designed to increase the density of oxygen vacancies, and the effect of doping Sr2+to hardness and toughness was studied. SrxLa1-xMgAl11O19-0.5xpellets were synthesized by hot-pressing (1500°C, 40MPa). The relative density of LaMgAl11O19 reaches 97.68%. The hardness of LaMgAl 11O19 is about 25.47GPa and the fracture toughness is 11.3 MPa·m1/2. The thermal expansion coefficient of LaMgAl 11O19was 8.71×10-6K-1, and Sr0.6La0.4MgAl11O18.7was 8.95×10-6K-1. The results showed hot-pressure sintering could synthesize dense SrxLa1-xMgAl 11O19-0.5x with magnetoplumbite structure. Sr 2+doping could increase the thermal expansion coefficient of LaMgAl11O19.

KW - Hexa-aluminate

KW - Hot-pressing

KW - Thermal expansion coefficient

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U2 - 10.4028/www.scientific.net/AMR.105-106.403

DO - 10.4028/www.scientific.net/AMR.105-106.403

M3 - Conference contribution

AN - SCOPUS:77954194471

SN - 0878492755

SN - 9780878492756

T3 - Advanced Materials Research

SP - 403

EP - 405

BT - Chinese Ceramics Communications

T2 - 6th China International Conference on High-Performance Ceramics, CICC-6

Y2 - 16 August 2009 through 19 August 2009

ER -

Preparation and physical properties of SrxLa 1-xMgAl11O19-0.5x

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Preparation and physical properties of Sr_xLa _1-xMgAl₁₁O_19-0.5x