headerpos: 9507
 
 
  Estonian Journal of Engineering

ISSN 1736-7522 (electronic)  ISSN 1736-6038  (print)

 An international scientific journal
Formerly: Proceedings of the Estonian Academy of Sciences Engineering
(ISSN 1406-0175)
Published since 1995

Estonian Journal of Engineering

ISSN 1736-7522 (electronic)  ISSN 1736-6038  (print)

 An international scientific journal
Formerly: Proceedings of the Estonian Academy of Sciences Engineering
(ISSN 1406-0175)
Published since 1995

Publisher
Journal Information
» Abstracting/Indexing
List of Issues
» 2013
» 2012
» 2011
» 2010
» 2009
Vol. 15, Issue 4
Vol. 15, Issue 3
Vol. 15, Issue 2
Vol. 15, Issue 1
» 2008
» 2007
» Back Issues
» Back issues (full texts)
  in Google
Publisher
» Other Journals
» Staff

Processing and microstructural characterization of WC-based cermets doped by ZrO2; pp. 275–282

(Full article in PDF format) doi: 10.3176/eng.2009.4.04


Authors

Eduard Kimmari, Irina Hussainova, Anton Smirnov, Rainer Traksmaa, Irina Preis

Abstract

In the present work we report the processing of the WC-based and ZrO2-doped cermets with the addition of oxides of 6 wt% through sinter/HIP routine. Microstructural characterization of the final products has been conducted with the help of XRD-analysis and scanning electron micro­scopy combined with energy dispersive spectroscopy. Influence of the binder metal on the developed microstructure and possibility to sinter a fully dense bulk cermet with zirconia is discussed in detail.

Keywords

tungsten carbide, hardmetal, zirconia, powder metallury, HIP.

References

  1. Gee , M. G. , Grant , A. and Roebuck , B. Wear mechanisms in abrasion and erosion of WC/Co and related hardmetals. Wear , 2007 , 263 , 137–148.
doi:10.1016/j.wear.2006.12.046

  2. Hussainova , I. Microstructural design of ceramic-metal composites for tribological applications. Adv. Comp. Mater. Struct. , 2007 , 334–335 , 125–128.

  3. Bakshi , S. D. , Basu , B. and Mishra , S. K. Microstructure and mechanical properties of sinter-HIPed ZrO2-ZrB2 composites. Composites A , 2006 , 37 , 2128–2135.
doi:10.1016/j.compositesa.2005.11.012

  4. Basu , B. , Venkateswaran , T. and Sarkar , D. Pressureless sintering and tribological properties of WC–ZrO2 composites. J. Eur. Ceram. Soc. , 2005 , 25 , 1603–1610.
doi:10.1016/j.jeurceramsoc.2004.05.021

  5. Jiang , D. , der Biest , O. and Vleugels , J. ZrO2-WC nanocomposites with superior properties. J. Eur. Ceram. Soc. , 2007 , 27 , 1247–1251.
doi:10.1016/j.jeurceramsoc.2006.05.028

  6. Yang , F. , Zhao , J. and Ai , X. Effect of initial particulate and sintering temperature on mechanical properties and microstructure of WC-ZrO2-VC ceramic composites. J. Mater. Proc. Tech. , 2009 , 209 , 4531–4536.
doi:10.1016/j.jmatprotec.2008.10.027

  7. An , L. , Han , J. and Chen , J. Microstructure and mechanical properties of WC-20%Co/ZrO2(3Y) cermet composites. J. University of Science and Technology Beijing , 2006 , 13 , 174–177.
doi:10.1016/S1005-8850(06)60038-8

  8. Bocanegra-Bernal , M. H. Hot isostatic pressing technology and its applications to metals and ceramics. J. Mater. Sci. , 2004 , 39 , 6399–6420.
doi:10.1023/B:JMSC.0000044878.11441.90

  9. Nikolopoulos , P. and Sotiropoulou , D. Wettability between zirconia ceramics and the liquid metals copper , nickel and cobalt. J. Mater. Sci. Lett. , 1987 , 6 , 1429–1430.
doi:10.1007/BF01689311

10. Munos , M. C. , Gallego , S. , Beltran , J. and Cerda , J. Adhesion at metal–ZrO2 interfaces. Surface Sci. Rep. , 2006 , 61 , 303–344.
doi:10.1016/j.surfrep.2006.03.002

11. Zhu , J. , Kamiya , A. , Yamada , T. , Shi , W. , Naganuma , K. and Mukai , K. Surface tension , wettability and reactivity of molten titanium in Ti/yttria-stabilized zirconia system. Mater. Sci. Eng. A , 327 , 117–127.
doi:10.1016/S0921-5093(01)01732-4

12. Li , Q. , Lei , T. C. and Chen , W. Z. Microstructural characterization of WCp reinforced Ni-Cr-B-Si-C composite coatings. Surface Coatings Technol. , 1999 , 114 , 285–291.
doi:10.1016/S0257-8972(99)00056-0

13. Wang , Y. , Delanoe , A. , Lay , S. , Pauty , E. and Allibert , C. H. Morphology and growth of WC grains in WC-Co cermets. Materiaux , 2002 , AF-01-082.
 
Back

Current Issue: Vol. 19, Issue 4, 2013





Publishing schedule:
No. 1: 20 March
No. 2: 20 June
No. 3: 20 September
No. 4: 20 December