Effect of preheating treatment at 575 °C of green compacts on porous NiAl

被引：20

作者：

Dong, H. X. ^{[1
]}

He, Y. H. ^{[1
]}

Zou, J. ^{[2
,3
]}

Xu, N. P. ^{[4
]}

Huang, B. Y. ^{[1
]}

Liu, C. T. ^{[5
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[2] Univ Queensland, Div Mat, Brisbane, Qld 4072, Australia

[3] Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia

[4] Nanjing Univ Technol, Membrane Sci & Technol Res Ctr, Nanjing 210009, Peoples R China

[5] Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 492卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

NiAl intermetallics; Porous materials; Preheating treatment; SHAPE-MEMORY ALLOYS; NICKEL; SHS; ALUMINIDES; MECHANISM; METALS;

D O I：

10.1016/j.jallcom.2009.12.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of preheating treatment on NiAl compacts was systematically investigated. The preheating treatment of green compacts at 575 degrees C preserves their original shapes. The formation of porous NiAl alloys usually accompanies with the volume expansion due to the formation of Ni2Al3 during the preheating treatment. The pore structures of porous NiAl alloys strongly depended on the preheating duration. The volume expansion, porosity and the maximum pore size increased with prolonged preheating treatment duration. Whereas the maximum pore size of final product decreased with increased preheating treatment duration. It has been found that the pore structures especially the maximum pore size strongly depend on the volume expansion determined by the intensity of exothermic reaction from the preheating temperature to the finally sintering temperature. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：219 / 225

页数：7

共 23 条

[1] High-porosity permeable cellular metals and alloys in catalytic processes of gas cleaning [J].

Antsiferov, VN ;

Makarov, AM ;

Khramtsov, VD .

ADVANCED ENGINEERING MATERIALS, 2005, 7 (1-2) :77-91

[2]

Barin Ihsan., 2013, Thermochemical properties of inorganic substances: supplement

[3] NiAl intermetallic coatings elaborated by a solar assisted SHS process [J].

Bautista, C. Sanchez ;

Ferriere, A. ;

Rodriguez, G. P. ;

Lopez-Almodovar, M. ;

Barba, A. ;

Sierra, C. ;

Vazquez, A. J. .

INTERMETALLICS, 2006, 14 (10-11) :1270-1275

[4]

BRADLY AJ, 1982, J LESS-COMMON MET, V87, P117

[5] Al-Ni intermetallics obtained by SHS;: A time-resolved X-ray diffraction study [J].

Curfs, C. ;

Tun-As, X. ;

Vaughan, G. B. M. ;

Terr, A. E. ;

Kvick, A. ;

Rodriguez, M. A. .

INTERMETALLICS, 2007, 15 (09) :1163-1171

[6] Formation of porous Ni-Al intermetallics through pressureless reaction synthesis [J].

Dong, H. X. ;

Jiang, Y. ;

He, Y. H. ;

Song, M. ;

Zou, J. ;

Xu, N. P. ;

Huang, B. Y. ;

Liu, C. T. ;

Liaw, P. K. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 484 (1-2) :907-913

[7] Synthesis of intermetallic NiAl by SHS reaction using coarse-grained nickel and ultrafine-grained aluminum produced by wire electrical explosion [J].

Dong, SS ;

Hou, P ;

Yang, HB ;

Zou, GT .

INTERMETALLICS, 2002, 10 (03) :217-223

[8] Modeling of reactive synthesis in consolidated blends of fine Ni and Al powders [J].

Farber, L ;

Klinger, L ;

Gotman, I .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 254 (1-2) :155-165

[9] Effect of heating rate on pore structure of porous FeAl material [J].

Gao, H. Y. ;

He, Y. H. ;

Shen, P. Z. ;

Xu, N. P. ;

Zou, J. ;

Jiang, Y. ;

Huang, B. Y. ;

Liu, C. T. .

POWDER METALLURGY, 2008, 51 (02) :171-175

[10] Processing of iron aluminides by pressureless sintering through Fe plus Al elemental route [J].

Gedevanishvili, S ;

Deevi, SC .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 325 (1-2) :163-176

← 1 2 3 →