Tungsten Carbide: A Versatile Additive to Get Trace Alkaline-earth Oxide Impurities out of ZrB2 based Ceramics

Ji Zou; Andrea D'Angio'; Haibin Ma; Guojun Zhang

doi:10.1016/j.scriptamat.2017.12.033

Tungsten Carbide: A Versatile Additive to Get Trace Alkaline-earth Oxide Impurities out of ZrB2 based Ceramics

Ji Zou, Andrea D'Angio', Haibin Ma, Guojun Zhang

Metallurgy and Materials

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Abstract

In this work, trace amounts of alkaline-earth oxide impurities (MxOy), M=Mg, Ca and Al, are identified from different graded ZrB2 based ceramics. The reactions in MxOy-WC systems at high temperature are therefore investigated via X-Ray diffraction and element analysis, which have been further supported by thermodynamic calculations. Since MxOy with low melting point deteriorates the high temperature performance of ceramics, the effective role of WC on strongZrB2-SiC-WC ceramics is re-considered: apart from the contribution on removing of
ZrO2, WC serves as a versatile additive with capacity to remove different oxide

Original language	English
Pages (from-to)	40-44
Number of pages	5
Journal	Scripta Materialia
Volume	147
Early online date	5 Jan 2018
DOIs	https://doi.org/10.1016/j.scriptamat.2017.12.033
Publication status	Published - 1 Apr 2018

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Zou_et_al_Tungsten_carbide_a_versatile_Scripta_Materialia_2018
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title = "Tungsten Carbide: A Versatile Additive to Get Trace Alkaline-earth Oxide Impurities out of ZrB2 based Ceramics",

abstract = "In this work, trace amounts of alkaline-earth oxide impurities (MxOy), M=Mg, Ca and Al, are identified from different graded ZrB2 based ceramics. The reactions in MxOy-WC systems at high temperature are therefore investigated via X-Ray diffraction and element analysis, which have been further supported by thermodynamic calculations. Since MxOy with low melting point deteriorates the high temperature performance of ceramics, the effective role of WC on strongZrB2-SiC-WC ceramics is re-considered: apart from the contribution on removing ofZrO2, WC serves as a versatile additive with capacity to remove different oxide",

author = "Ji Zou and Andrea D'Angio' and Haibin Ma and Guojun Zhang",

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T1 - Tungsten Carbide: A Versatile Additive to Get Trace Alkaline-earth Oxide Impurities out of ZrB2 based Ceramics

AU - Zou, Ji

AU - D'Angio', Andrea

AU - Ma, Haibin

AU - Zhang, Guojun

PY - 2018/4/1

Y1 - 2018/4/1

N2 - In this work, trace amounts of alkaline-earth oxide impurities (MxOy), M=Mg, Ca and Al, are identified from different graded ZrB2 based ceramics. The reactions in MxOy-WC systems at high temperature are therefore investigated via X-Ray diffraction and element analysis, which have been further supported by thermodynamic calculations. Since MxOy with low melting point deteriorates the high temperature performance of ceramics, the effective role of WC on strongZrB2-SiC-WC ceramics is re-considered: apart from the contribution on removing ofZrO2, WC serves as a versatile additive with capacity to remove different oxide

AB - In this work, trace amounts of alkaline-earth oxide impurities (MxOy), M=Mg, Ca and Al, are identified from different graded ZrB2 based ceramics. The reactions in MxOy-WC systems at high temperature are therefore investigated via X-Ray diffraction and element analysis, which have been further supported by thermodynamic calculations. Since MxOy with low melting point deteriorates the high temperature performance of ceramics, the effective role of WC on strongZrB2-SiC-WC ceramics is re-considered: apart from the contribution on removing ofZrO2, WC serves as a versatile additive with capacity to remove different oxide

U2 - 10.1016/j.scriptamat.2017.12.033

DO - 10.1016/j.scriptamat.2017.12.033

M3 - Article

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VL - 147

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EP - 44

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Tungsten Carbide: A Versatile Additive to Get Trace Alkaline-earth Oxide Impurities out of ZrB2 based Ceramics

Abstract

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