Combustion synthesis and characteristics of aluminum oxynitride ceramic foams

Yongting Zheng; Hongbo Li; Wei Zhou; Xiaonan Zhang; Guorui Ye

doi:10.1016/j.ceramint.2012.03.018

Combustion synthesis and characteristics of aluminum oxynitride ceramic foams

Yongting Zheng^*
, Hongbo Li
, Wei Zhou
, Xiaonan Zhang
, Guorui Ye

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

12 Scopus citations

Abstract

Aluminum oxynitride (AlON) ceramic foams were prepared by combustion synthesis using Al and Al ₂O ₃ as starting materials under high nitrogen pressure. By introducing Al(NO ₃) ₃· 9H ₂O into reactants as active pore-forming agent, AlON ceramic foams with well-distributed pores were cost-effectively fabricated. The influences of Al(NO ₃) ₃·9H ₂O content on the combustion process, pore content and structure were studied systematically. The experiment results showed that porous AlON ceramics containing evenly distributed and noncontiguous pores were obtained when Al(NO ₃) ₃· 9H ₂O content was 30%, in which the closed porosity of 80% was found by Archimedes' method. Pore distribution measured by mercury intrusion porosimetry indicated that pores with several types of diameter were formed in the foams because of the different conditions of pore fusion and molten viscosity.

Original language	English
Pages (from-to)	5139-5144
Number of pages	6
Journal	Ceramics International
Volume	38
Issue number	6
DOIs	https://doi.org/10.1016/j.ceramint.2012.03.018
State	Published - Aug 2012

Keywords

B. Porosity
D. Al O
E. Structural applications

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10.1016/j.ceramint.2012.03.018

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@article{a6b0db490ecf433a924c16e7f506df2c,

title = "Combustion synthesis and characteristics of aluminum oxynitride ceramic foams",

abstract = "Aluminum oxynitride (AlON) ceramic foams were prepared by combustion synthesis using Al and Al 2O 3 as starting materials under high nitrogen pressure. By introducing Al(NO 3) 3· 9H 2O into reactants as active pore-forming agent, AlON ceramic foams with well-distributed pores were cost-effectively fabricated. The influences of Al(NO 3) 3·9H 2O content on the combustion process, pore content and structure were studied systematically. The experiment results showed that porous AlON ceramics containing evenly distributed and noncontiguous pores were obtained when Al(NO 3) 3· 9H 2O content was 30\%, in which the closed porosity of 80\% was found by Archimedes' method. Pore distribution measured by mercury intrusion porosimetry indicated that pores with several types of diameter were formed in the foams because of the different conditions of pore fusion and molten viscosity.",

keywords = "B. Porosity, D. Al O, E. Structural applications",

author = "Yongting Zheng and Hongbo Li and Wei Zhou and Xiaonan Zhang and Guorui Ye",

year = "2012",

month = aug,

doi = "10.1016/j.ceramint.2012.03.018",

language = "英语",

volume = "38",

pages = "5139--5144",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "6",

}

TY - JOUR

T1 - Combustion synthesis and characteristics of aluminum oxynitride ceramic foams

AU - Zheng, Yongting

AU - Li, Hongbo

AU - Zhou, Wei

AU - Zhang, Xiaonan

AU - Ye, Guorui

PY - 2012/8

Y1 - 2012/8

N2 - Aluminum oxynitride (AlON) ceramic foams were prepared by combustion synthesis using Al and Al 2O 3 as starting materials under high nitrogen pressure. By introducing Al(NO 3) 3· 9H 2O into reactants as active pore-forming agent, AlON ceramic foams with well-distributed pores were cost-effectively fabricated. The influences of Al(NO 3) 3·9H 2O content on the combustion process, pore content and structure were studied systematically. The experiment results showed that porous AlON ceramics containing evenly distributed and noncontiguous pores were obtained when Al(NO 3) 3· 9H 2O content was 30%, in which the closed porosity of 80% was found by Archimedes' method. Pore distribution measured by mercury intrusion porosimetry indicated that pores with several types of diameter were formed in the foams because of the different conditions of pore fusion and molten viscosity.

AB - Aluminum oxynitride (AlON) ceramic foams were prepared by combustion synthesis using Al and Al 2O 3 as starting materials under high nitrogen pressure. By introducing Al(NO 3) 3· 9H 2O into reactants as active pore-forming agent, AlON ceramic foams with well-distributed pores were cost-effectively fabricated. The influences of Al(NO 3) 3·9H 2O content on the combustion process, pore content and structure were studied systematically. The experiment results showed that porous AlON ceramics containing evenly distributed and noncontiguous pores were obtained when Al(NO 3) 3· 9H 2O content was 30%, in which the closed porosity of 80% was found by Archimedes' method. Pore distribution measured by mercury intrusion porosimetry indicated that pores with several types of diameter were formed in the foams because of the different conditions of pore fusion and molten viscosity.

KW - B. Porosity

KW - D. Al O

KW - E. Structural applications

UR - https://www.scopus.com/pages/publications/84862830794

U2 - 10.1016/j.ceramint.2012.03.018

DO - 10.1016/j.ceramint.2012.03.018

M3 - 文章

AN - SCOPUS:84862830794

SN - 0272-8842

VL - 38

SP - 5139

EP - 5144

JO - Ceramics International

JF - Ceramics International

IS - 6

ER -

Combustion synthesis and characteristics of aluminum oxynitride ceramic foams

Abstract

Keywords

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