Fabrication of Tantalum and Hafnium Carbide Fibers via ForcespinningTM for Ultrahigh-Temperature Applications

In this work, a novel method for producing ultrafine tantalum and hafnium carbide fibers using the ForcespinningTM technique via a nonhalide-based sol-gel process was investigated. An optimal solution viscosity range was systematically determined via rheological studies of neat PAN/DMF as a function of fiber formation. Subsequently, ForcespinningTM parameters were also systemically studied to determine the optimal rotational velocity and spinneret-to-collecting rod distance required for ideal fiber formation. TaC and HfC fibers were synthesized via ForcespinningTM utilizing a mixture of PAN and refractory transition metal alkoxides (i.e., tantalum (V) ethoxide and hafnium (IV) tert-butoxide) in DMF solution based on optimal conditions determined from the neat PAN/DMF. In all instances after calcination, powder X-ray diffraction (PXRD) and energy dispersive spectroscopy (EDS) indicated that TaC and HfC fibers were produced. TGA/DSC confirmed the chemical stability of the resulting fibers.

[1]  G. Hilmas,et al.  Mechanical behaviour of carbon fibre reinforced TaC/SiC and ZrC/SiC composites up to 2100°C , 2019, Journal of the European Ceramic Society.

[2]  M. Sayagués,et al.  Mechanochemical combustion synthesis of vanadium carbide (VC), niobium carbide (NbC) and tantalum carbide (TaC) nanoparticles , 2019, International Journal of Refractory Metals and Hard Materials.

[3]  Zhiming Zhang,et al.  A review on nanofiber fabrication with the effect of high-speed centrifugal force field , 2019, Journal of Engineered Fibers and Fabrics.

[4]  Jun Wang,et al.  Synthesis of a novel single-source precursor for HfC ceramics and its feasibility for the preparation of Hf-based ceramic fibres , 2018 .

[5]  Shaohua Jiang,et al.  Flexible and refractory tantalum carbide-carbon electrospun nanofibers with high modulus and electric conductivity , 2017 .

[6]  A. Agarwal,et al.  Thermal Analysis of Tantalum Carbide-Hafnium Carbide Solid Solutions from Room Temperature to 1400 °C , 2017 .

[7]  Y. Cong,et al.  Synthesis of tantalum carbide from multiwall carbon nanotubes in a molten salt medium , 2017 .

[8]  G. Hilmas,et al.  Ultra-high temperature ceramics: Materials for extreme environments , 2017 .

[9]  Yi-bing Cheng,et al.  Creation of Titanium and Zirconium Carbide Fibers with the Forcespinning Technique , 2016 .

[10]  Madhab Pokhrel,et al.  Effect of Polymer Concentration, Rotational Speed, and Solvent Mixture on Fiber Formation Using Forcespinning® , 2016 .

[11]  El-Sayed M. Sherif,et al.  Titanium Carbide Nanofibers-Reinforced Aluminum Compacts, a New Strategy to Enhance Mechanical Properties , 2016, Materials.

[12]  M. Alcoutlabi,et al.  Forcespinning: A new method for the mass production of Sn/C composite nanofiber anodes for lithium ion batteries , 2016 .

[13]  S. Lee,et al.  Nano-TaC powder synthesized using modified spark plasma sintering apparatus and its densification , 2015 .

[14]  Axel van de Walle,et al.  Prediction of the material with highest known melting point from ab initio molecular dynamics calculations , 2015 .

[15]  K. Lozano,et al.  Synthesis of β-SiC Fine Fibers by the Forcespinning Method with Microwave Irradiation , 2015 .

[16]  A. Fuentes,et al.  Experimental study of nanofiber production through forcespinning , 2013 .

[17]  N. Simonenko,et al.  Synthesis of highly dispersed super-refractory tantalum-zirconium carbide Ta4ZrC5 and tantalum-hafnium carbide Ta4HfC5 via sol-gel technology , 2011 .

[18]  Michael L. Ramírez,et al.  Electrospinning to Forcespinning , 2010 .

[19]  Weizhi Wang,et al.  Crystallization behavior of poly(ε-caprolactone)/layered double hydroxide nanocomposites , 2010 .

[20]  Chi Wang,et al.  Electrospinning of Polyacrylonitrile Solutions at Elevated Temperatures , 2007 .

[21]  Jianhua Ma,et al.  One simple synthesis route to nanocrystalline tantalum carbide via the reaction of tantalum pentachloride and sodium carbonate with metallic magnesium , 2007 .

[22]  R. Vispute,et al.  Epitaxy and recrystallization kinetics of TaC thin films on SiC for high temperature processing of semiconductor devices , 2007 .

[23]  William G. Fahrenholtz,et al.  Refractory Diborides of Zirconium and Hafnium , 2007 .

[24]  Koji Nakane,et al.  Formation of inorganic (TaC, TaN) fibers by thermal decomposition of cellulose acetate–tantalum alkoxide precursor gel fibers , 2006 .

[25]  Yiping Liu,et al.  Finite strain 3D thermoviscoelastic constitutive model for shape memory polymers , 2006 .

[26]  H. Preiss,et al.  Preparation of NbC, TaC and Mo2C fibres and films from polymeric precursors , 1998 .

[27]  J. Desmaison,et al.  Comparison of the oxidation behaviour of two dense hot isostatically pressed tantalum carbide (TaC and Ta2C) Materials , 1997 .