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Synthesis of WSi2 and W2B intermetallic compound by in-situ self propagating high-temperature synthesis reaction

机译:原位自蔓延高温合成反应合成WSi2和W2B金属间化合物

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This study is the experiments on the synthesis of Tungsten intermetallic compound (WSi2, W2B) by self propagating high-temperature synthesis (SHS) from two aluminothermic reactant mixture systems of WO3–Si–Al and WO3–B2O3–Al. The reactions were carried out in a SHS reactor under static argon gas at the pressure of 0.5 MPa. The standard Gibbs energy minimization method was used to calculate the equilibrium composition of the reacting species. The as-SHS products were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) with energy dispersive X-ray (EDX) technique.
机译:本研究是由两个铝热反应物混合物系统通过自蔓延高温合成(SHS)合成钨金属间化合物(WSi 2 ,W 2 B)的实验WO 3 –Si–Al和WO 3 –B 2 O 3 –Al的分布。反应在SHS反应器中在静态氩气下在0.5MPa的压力下进行。使用标准的吉布斯能量最小化方法来计算反应物种的平衡组成。通过X射线衍射(XRD)和扫描电子显微镜(SEM)以及能量色散X射线(EDX)技术对as-SHS产品进行了表征。

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