Synthesis, microstructure and properties of Ti–Al porous intermetallic compounds prepared by a thermal explosion reaction

Ti–Al porous intermetallic compounds were prepared by a simple and energy-saving process of thermal explosion (TE) reactions. The effects of the Ti/Al molar ratios (including Ti : Al = 3 : 1, 2 : 1, 1 : 1, 1 : 2 and 1 : 3) on the temperature profiles, phase compositions, pore characteristics, density, expansion behaviors and oxidation resistance were investigated. The ignition temperatures were between 630–653 °C and the combustion temperatures were between 737–1161 °C, both of which are higher than the target furnace temperature. Porous Ti–Al alloys displayed a high open porosity of 35–56%. The pores were from non-fully dense green compacts and expansion behaviors of TE. When the target furnace temperature was set at 650 °C, the specimen with Ti and Al in a 1 : 2 ratio possessed the highest open porosity of 53.89% and the lowest density of 1.58 g cm−3. When the target furnace temperature was set at 700 °C, the specimen with Ti and Al in a 1 : 3 ratio possessed the highest open porosity of 56.27% and the lowest density of 1.44 g cm−3. The porous specimens with Ti and Al in a 1 : 3 ratio exhibited the best resistance to oxidation at 650 °C in air.

[1]  P. Sooksaen,et al.  The properties of Southern Thailand clay-based porous ceramics fabricated from different pore size templates , 2015 .

[2]  Okenwa I. Okoli,et al.  Processing and properties of advanced porous ceramics: An application based review , 2014 .

[3]  Ying Wang,et al.  Fabrication and properties of ZrC-ZrB2/Ni cermet coatings on a magnesium alloy by atmospheric plasma spraying of SHS powders , 2014 .

[4]  K. Parida,et al.  Organic amine-functionalized silica-based mesoporous materials: an update of syntheses and catalytic applications , 2014 .

[5]  S. Mishra,et al.  Alumina-titanium diboride in situ composite by self-propagating high-temperature synthesis (SHS) dynamic compaction: Effect of compaction pressure during synthesis , 2014 .

[6]  Lei Zhang,et al.  Microstructure evolution of Al–Ti liquid–solid interface , 2013 .

[7]  J. Macneil,et al.  The impact of three new quaternary sulfides on the current predictive tools for structure and composition of diamond-like materials , 2013 .

[8]  H. Nakajima,et al.  Pore formation and compressive deformation in porous TiAl–Nb alloys containing directional pores , 2013 .

[9]  F. Siperstein,et al.  Organic molecules of intrinsic microporosity: Characterization of novel microporous materials , 2013 .

[10]  Alain Walcarius,et al.  Mesoporous materials and electrochemistry. , 2013, Chemical Society reviews.

[11]  Q. Ma,et al.  Preparation and characterization of mesoporous silicon oxycarbide ceramics without free carbon from polysiloxane , 2013 .

[12]  Zi-kui Liu,et al.  Pore structure and gas permeability of high Nb-containing TiAl porous alloys by elemental powder metallurgy for microfiltration application , 2013 .

[13]  Xiaohong Wang,et al.  Combustion synthesis of (Mo1 − xCrx)Si2 (x = 0.00–0.30) alloys in SHS mode , 2012 .

[14]  Yoshimi Watanabe,et al.  Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction , 2011 .

[15]  Galo J. A. A. Soler-Illia,et al.  Mesoporous Pt and Pt/Ru alloy electrocatalysts for methanol oxidation , 2011 .

[16]  Xiaohong Wang,et al.  Effect of diluent on the synthesis of molybdenum disilicide by mechanically-induced self-propagating reaction , 2010 .

[17]  J. Lin,et al.  Pore structures and thermal insulating properties of high Nb containing TiAl porous alloys , 2010 .

[18]  S. K. Sadrnezhaad,et al.  Fabrication of porous NiTi-shape memory alloy objects by partially hydrided titanium powder for biomedical applications , 2009 .

[19]  N. Xu,et al.  Development of a new graded-porosity FeAl alloy by elemental reactive synthesis , 2009 .

[20]  Yuehui He,et al.  Environmental corrosion resistance of porous TiAl intermetallic compounds , 2009 .

[21]  Yuehui He,et al.  Bond strength and interface energy between Pd membranes and TiAl supports , 2008 .

[22]  N. Xu,et al.  Effects of the Al content on pore structures of porous Ti–Al alloys , 2008 .

[23]  Yong Huang,et al.  Ceramics with Special Porous Structures Fabricated by Freeze‐Gelcasting: Using tert‐Butyl Alcohol as a Template , 2007 .

[24]  Yao Jiang,et al.  Fabrication of Ti–Al Micro/ Nanometer‐Sized Porous Alloys through the Kirkendall Effect , 2007 .

[25]  R. Yang,et al.  Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples , 2006 .

[26]  André R. Studart,et al.  Processing Routes to Macroporous Ceramics: A Review , 2006 .

[27]  Paolo Colombo,et al.  Conventional and novel processing methods for cellular ceramics , 2006, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[28]  D. Pettifor,et al.  Dislocations in materials with mixed covalent and metallic bonding , 2005 .

[29]  A. Biswas.  Porous NiTi by thermal explosion mode of SHS: processing, mechanism and generation of single phase microstructure , 2005 .

[30]  Jing Zhao,et al.  Synthesis and microstructural characterization of Ti-Al3Ti metal-intermetallic laminate (MIL) composites , 2005 .

[31]  J. Gachon,et al.  On the mechanism of heterogeneous reaction and phase formation in Ti/Al multilayer nanofilms , 2005 .

[32]  P. S. Liu,et al.  Review Functional materials of porous metals made by P/M, electroplating and some other techniques , 2001 .

[33]  R. Pérez,et al.  Microstructural and chemical characterization of Al3Ti alloy obtained with a rapid solidification technique , 1998 .

[34]  Yong-Seog Kim,et al.  On the formation of MoSi2 by self-propagating high-temperature synthesis , 1996 .

[35]  T. Shimizu,et al.  Cyclic oxidation resistance of an intermetallic compound TiAl , 1992 .

[36]  Zi-kui Liu,et al.  Reaction behavior and pore formation mechanism of TiAl–Nb porous alloys prepared by elemental powder metallurgy , 2014 .

[37]  Hongbo Guo,et al.  Cyclic oxidation of β-NiAl with various reactive element dopants at 1200 °C , 2013 .

[38]  U. Tamburini,et al.  Ignition mechanism in combustion synthesis of Ti–Al and Ti–Ni systems , 2003 .

[39]  T. Jewett,et al.  Phase formation kinetics of titanium aluminides produced from elemental powder mixtures , 1997 .

[40]  John J. Moore,et al.  Combustion synthesis of advanced materials: Part I. Reaction parameters , 1995 .

[41]  K. Kuroda,et al.  The preparation of alkyltrimethylammonium-kanemite complexes and their conversion to microporous materials. , 1990 .