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has been cited by the following article:

• TITLE: The Effect of Using Nano ZrO2 on the Properties of W-ZrC Composite Fabricated through Reaction Sintering

  AUTHORS: Mostafa Roosta, Hamidreza Baharvandi, Hossein Abdizade

  KEYWORDS: W/ZrC Composite, Reaction Sintering, Tungsten Carbide, Nano Zirconium Oxide

  JOURNAL NAME: New Journal of Glass and Ceramics, Vol.1 No.1, April 12, 2011

  ABSTRACT: To fabricate W-ZrC composite through reaction sintering at first WC and ZrO2 powders with molar ratio of 3-1 are ball milled, then the green body made from this mixture is sintered. Since reactivity is the main problem in sintering of mironized powders the starting ZrO2 powder is selected in nano size to see whether the reaction improves. The XRD pattern indicates that W-ZrC composite has been formed, although some unreacted compounds still exist and some unwanted components have been created. In the case of using nano powders the amount of unreacted WC and ZrO2 phases and unwanted W2C phase reduces and the reaction progresses better. Additionally by using nano powders the reaction progressed and the mechanical proprieties including density, hardness, Elastic modulus and Flexural strength improved.