Design, fabrication and performance of Al2O3/(W0.7Ti0.3)C + Al2O3/TiC multilayered ceramic nozzles

Abstract Al 2 O 3 /(W 0.7 Ti 0.3 )C + Al 2 O 3 /TiC multilayered ceramic nozzles (N1, N2, N3 and N4) with different thickness ratios among constituent layers were produced by hot-pressing. The value of the residual stress inside the layered nozzle during fabricating process was calculated by means of the finite element method. The mechanical properties at the surface layer of these layered materials were measured, the microstructure was examined. The wear behaviors of the multilayered nozzles were investigated and compared with an unstressed reference nozzle (N5). Results showed that the multilayered nozzles had superior erosion wear resistance to that of the stress-free one. The erosion wear resistance of the layered nozzles was influenced by the thickness ratio among constituent layers. The N4 nozzle with thickness ratio of two between adjacent layers exhibited higher erosion wear resistance over the N1, N2 and N3 nozzles.

[1]  G. Pezzotti,et al.  Laminated ceramic structures from oxide systems , 2006 .

[2]  D. Sciti,et al.  Effects of residual stresses on the fracture properties of non-oxide laminated composites , 2007 .

[3]  D. Jianxin,et al.  Effect of residual stresses on the erosion wear of laminated ceramic nozzles , 2008 .

[4]  D. Clarke,et al.  Edge Stresses in Alumina/Zirconia Laminates , 2005 .

[5]  J. Michler,et al.  Tribological behaviour of Si3N4 and Si3N4–%TiN based composites and multi-layer laminates , 2006 .

[6]  Raymond A. Cutler,et al.  Toughening of Layered Ceramic Composites with Residual Surface Compression , 1996 .

[7]  G. Pezzotti,et al.  Abrasive wear in ceramic laminated composites , 2006 .

[8]  Li Jianfeng,et al.  Development of SiC/(W, Ti)C gradient ceramic nozzle materials for sand blasting surface treatments , 2007 .

[9]  Deng Jianxin,et al.  Erosion wear behaviours of SiC/(W,Ti)C laminated ceramic nozzles in dry sand blasting processes , 2007 .

[10]  D. Jianxin.  Erosion wear of boron carbide ceramic nozzles by abrasive air-jets , 2005 .

[11]  C. Melandri,et al.  Tribological behaviour of Al2O3/ZrO2-ZrO2 laminated composites , 2000 .

[12]  G. Messing,et al.  Mechanical characterization of Al2O3/ZrO2 hybrid laminates , 1998 .

[13]  Y. Sekiguchi,et al.  Measurement of residual stress distributions in Al2O3/3Y-TZP multilayered composites by fluorescence and Raman microprobe piezo-spectroscopy , 2005 .

[14]  M. Boniecki,et al.  Multilayer ceramic composites with high failure resistance , 2007 .

[15]  M. Bertoldi,et al.  Design and production of ceramic laminates with high mechanical resistance and reliability , 2006 .

[16]  L. Lili,et al.  Erosion wear of laminated ceramic nozzles , 2007 .

[17]  D. Jianxin,et al.  Wear behavior of ceramic nozzles in sand blasting treatments , 2003 .

[18]  C. Melandri,et al.  Influence of Residual Stresses on the Wear Behavior of Alumina/Alumina–Zirconia Laminated Composites , 2003 .

[19]  M. C. Nichols,et al.  Effect of Thermal History on the Properties of a Willemite Glass‐Ceramic , 1983 .

[20]  R. Cook,et al.  A Modified Indentation Toughness Technique , 1983 .