| ON ZrO_2-NiCr COMPOSITE POWDER FOR SPRAYING |
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| 作者姓名： | 邱凤襄 罗志平 邵刚勤 潘牧 |
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| 作者单位： | Qiu Fengxiang Luo ZhipingShao Canqin Pan MuResearch Institute for Advanced Materials，Wuhan University of Technology，Wuhan 430070.P. R.China |
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| 摘 要： | Composite powder prepared of calcium ox-ide stabilzed ZrO_2 (CSZ)and NiCr by vacuum sintering isstudied, and the effect of additive TiO_2,on its properties isdiscussed. The morphology and phases of the powder weremeasured and determined by SEM.EPMA. XRD methodsand the testing of flowability, bulk density and microhard-ness. The results show that the metallic camponents in thepowder are in homogeneous distribution,the flowability.bulkdensity and microhardness are superior to the ZrO_2-NiCrpowder prepared by mechanically mixing. All components inthe coating made of the composite powder are well-distribut-ed because of avoiding segregation in the middle of mixing.It proves that the comopsite powder is an excellent materialfor plasma spraying.
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ON ZrO_2-NiCr COMPOSITE POWDER FOR SPRAYING |
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| Qiu Fengxiang Luo ZhipingShao Canqin Pan MuResearch Institute for Advanced Materials,Wuhan University of Technology,Wuhan .P. R.China.ON ZrO_2-NiCr COMPOSITE POWDER FOR SPRAYING[J].Journal of Wuhan University of Technology. Materials Science Edition,1995(4). |
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| Authors: | Qiu Fengxiang Luo ZhipingShao Canqin Pan MuResearch Institute for Advanced Materials Wuhan University of Technology Wuhan P RChina |
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| Affiliation: | Qiu Fengxiang Luo ZhipingShao Canqin Pan MuResearch Institute for Advanced Materials,Wuhan University of Technology,Wuhan 430070.P. R.China |
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| Abstract: | Composite powder prepared of calcium oxide stabilzed ZrO2(CSZ) and NiCr by vacuum sintering is studied,and the effect of additive TiO2 on its properties is discussed. The morphology and phases of the powder were measured and determined by SEM. EPMA, XRD methods and the testing of flowability, bulk density and microhard-ness. The results show that the metallic components in the powder are in homogeneous distribution , the flowability, bulk density and microhardness are superior to the ZrO2-NiCr powder prepared by mechanically mixing. All components in the coating made of the composite powder are well-distributed because of avoiding segregation in the middle of mixing. It proves that the composite powder is an excellent material for plasma spraying. |
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| Keywords: | composite powder ZrO2 vacuum sin-tering plasma spraying |
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