Silicon nitride foams from emulsions sintered by rapid intense thermal radiation

被引：24

作者：

de Moraes, Elisangela Guzi ^{[1
]}

Li, Duan ^{[2
,3
]}

Colombo, Paolo ^{[1
,4
]}

Shen, Zhijian ^{[2
,3
]}

机构：

[1] Univ Padua, Dipartimento Ingn Ind, I-35131 Padua, Italy

[2] Stockholm Univ, Arrhenius Lab, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden

[3] Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, S-10691 Stockholm, Sweden

[4] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16801 USA

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2015年 / 35卷 / 12期

基金：

瑞典研究理事会;

关键词：

Foams; Silicon nitride; Emulsification; Spark plasma sintering; Sintering by intense thermal radiation; GLASS-CERAMIC SCAFFOLDS; MECHANICAL-PROPERTIES; COLLOIDAL FILTRATION; CELLULAR CERAMICS; AQUEOUS SLIPS; MICROSTRUCTURE; FABRICATION; MGO;

D O I：

10.1016/j.jeurceramsoc.2015.02.007

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Open cell Si3N4 foams were fabricated by an emulsification process and subsequent sintering. Emulsification took place in an aqueous environment by using octane as alkane phase and a surfactant as stabilizer. Effects of different octane concentrations (50 vol% and 70 vol%) and stirring velocities (700 rpm and 1000 rpm) on porosity and pore size distribution were investigated. The shaped foams were pressureless sintered at 1600 degrees C inside a modified SPS set-up. Si3N4 foams decorated with SiC nanowires and with an average cell size of 8-41 mu m and total porosity of 80-86 vol% were obtained. The compressive strength ranged from 2.0 MPa up to 9.9 MPa. Both the foaming and sintering processes contributed to the development of different microstructures. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：3263 / 3272

页数：10

共 51 条

[1]

Alper AllenM., 1995, PHASE DIAGRAMS ADV C

[2] CRITICAL CONCENTRATION OF MGO FOR THE PREVENTION OF ABNORMAL GRAIN-GROWTH IN ALUMINA [J].

BAE, SI ;

BAIK, S .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (10) :2499-2504

[3] Cellular ceramics by direct foaming of emulsified ceramic powder suspensions [J].

Barg, Suelen ;

Soltmann, Christian ;

Andrade, Miria ;

Koch, Dietmar ;

Grathwohl, Georg .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (09) :2823-2829

[4] New cellular ceramics from high alkane phase emulsified suspensions (HAPES) [J].

Barg, Suelen ;

de Moraes, Elisangela Guzi ;

Koch, Dietmar ;

Grathwohl, Georg .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (12) :2439-2446

[5] X-RAY-DIFFRACTION ANALYSIS OF THE PYROLYTIC CONVERSION OF PERHYDROPOLYSILAZANE INTO SILICON-NITRIDE [J].

BLANCHARD, CR ;

SCHWAB, ST .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (07) :1729-1739

[6] EVALUATION OF STRUT STRENGTH IN OPEN-CELL CERAMICS [J].

BREZNY, R ;

GREEN, DJ ;

DAM, CQ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (06) :885-889

[7] The surface functionalization of 45S5 Bioglass®-based glass-ceramic scaffolds and its impact on bioactivity [J].

Chen, Q. Z. ;

Rezwan, K. ;

Armitage, D. ;

Nazhat, S. N. ;

Boccaccini, A. R. .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 2006, 17 (11) :979-987

[8] 45S5 Bioglass®-derived glass-ceramic scaffolds for bone tissue engineering [J].

Chen, QZZ ;

Thompson, ID ;

Boccaccini, AR .

BIOMATERIALS, 2006, 27 (11) :2414-2425

[9] Conventional and novel processing methods for cellular ceramics [J].

Colombo, P .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2006, 364 (1838) :109-124

[10] Silicon nitride foams from emulsions [J].

de Moraes, E. G. ;

Colombo, P. .

MATERIALS LETTERS, 2014, 128 :128-131

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