Local texture of three-stage CVD SiC fibre by precession electron diffraction (PED) and XRD

SiC fibre with the transverse isotropic properties is very important to it reinforced metal matrix composites. In this paper, local texture of the CVD SiC fibre was investigated by means of X-ray diffraction (XRD) and precession electron diffraction (PED) on transmission electron microscopy (TEM). The result from XRD is in agreement with the result obtained from PED. And the result shown that at the first stage of deposition, the preferred direction of SiC grains is almost random and the distribution of grain size is scattered. At the second and third stages of deposition, there are two kinds of texture in SiC fibre, that is, (110)<111> and (110)<115>. Furthermore, the grain size at the second and third stages is about 200 nm and it is lower at the third stage than at the second stage because of the lower temperature at the third stage. The [110] preferred direction along axial direction for SiC fibre is beneficial to the axial tensile strength.

[1]  B. Boyce,et al.  Cryogenic indentation-induced grain growth in nanotwinned copper , 2013 .

[2]  A. Rollett,et al.  A comparison of texture results obtained using precession electron diffraction and neutron diffraction methods at diminishing length scales in ordered bimetallic nanolamellar composites , 2012 .

[3]  K. Ganesh,et al.  Evidence of metastable hcp phase grains in as-deposited nanocrystalline nickel films , 2012 .

[4]  Xiaoyan Song,et al.  Quantitative characterization of the microstructure and properties of nanocrystalline WC–Co bulk , 2012 .

[5]  Chen Wang,et al.  Microstructure of SiC Fiber Fabricated by Three-stage Chemical Vapor Deposition: Microstructure of SiC Fiber Fabricated by Three-stage Chemical Vapor Deposition , 2011 .

[6]  Chen Wang,et al.  Microstructure of SiC fiber fabricated by two-stage chemical vapor deposition on tungsten filament , 2010 .

[7]  Chen Wang,et al.  Study on W/SiC interface of SiC fiber fabricated by chemical vapor deposition on tungsten filament , 2010 .

[8]  Yan-qing Yang,et al.  Preparation and Tensile Test of SiC Fiber Fabricated by Three-stage Chemical Vapor Deposition: Preparation and Tensile Test of SiC Fiber Fabricated by Three-stage Chemical Vapor Deposition , 2010 .

[9]  S. Hovmöller,et al.  Collecting 3D electron diffraction data by the rotation method , 2010 .

[10]  P. Moeck,et al.  Automated Crystal Orientation and Phase Mapping of Iron Oxide Nano-Crystals in a Transmission Electron Microscope , 2009, Microscopy and Microanalysis.

[11]  Bin Huang,et al.  Effect of the interfacial reaction layer thickness on the thermal residual stresses in SiCf/Ti–6Al–4V composites , 2008 .

[12]  Z. J. Ma,et al.  The fabrication and property of SiC fiber reinforced copper matrix composites , 2007 .

[13]  A. Authier,et al.  Physical properties of crystals , 2007 .

[14]  S. Nicolopoulos,et al.  Precession technique and electron diffractometry as new tools for crystal structure analysis and chemical bonding determination. , 2007, Ultramicroscopy.

[15]  Kaifeng Zhang,et al.  Superplastic deformation behaviour of electrodeposited nanocrystalline nickel , 2007 .

[16]  S. Nicolopoulos,et al.  Ab initio determination of the framework structure of the heavy-metal oxide Cs(x)Nb2.54W2.46O14 from 100 kV precession electron diffraction data. , 2006, Ultramicroscopy.

[17]  E. Rauch,et al.  Coupled microstructural observations and local texture measurements with an automated crystallographic orientation mapping tool attached to a tem , 2005 .

[18]  L. Bonilla,et al.  Igniting homogeneous nucleation. , 2004, Physical review. E, Statistical, nonlinear, and soft matter physics.

[19]  Fei Ma,et al.  Calculation of the surface energy of fcc metals with modified embedded-atom method , 2004 .

[20]  I. Jones,et al.  The microstructure of sigma 1140+SiC fibres , 1999 .

[21]  N. Bansal.  CVD SiC fiber-reinforced barium aluminosilicate glass—ceramic matrix composites , 1996 .

[22]  Paul A. Midgley,et al.  Double conical beam-rocking system for measurement of integrated electron diffraction intensities , 1994 .

[23]  P. Pirouz,et al.  The microstructure of SCS-6 SiC fiber , 1991 .

[24]  Z. Li,et al.  The single-crystal elastic constants of cubic (3C) SiC to 1000° C , 1987 .

[25]  A. Müller.  The Structure of Metals , 1881, The American journal of dental science.

[26]  Peter Moeck,et al.  Automated nanocrystal orientation and phase mapping in the transmission electron microscope on the basis of precession electron diffraction , 2010 .

[27]  Gao Yu-kui.  Measurement of Residual Stresses in Single Crystal Cubic Materials Using X-Ray Diffraction Technique , 2010 .

[28]  N. Shi,et al.  Microstructure Characterization of Long W Core SiC Fiber , 2007 .

[29]  V. Radmilović,et al.  Formation of fiber texture in β-SiC films deposited on Si(100) substrates , 2007 .

[30]  Edgar F. Rauch,et al.  Rapid spot diffraction patterns idendification through template matching , 2005 .

[31]  E. F. Rauch,et al.  Rapid Diffraction Patterns identification through template matching , 2005 .