Al2O3/Ni functionally graded materials (FGM) obtained by centrifugal-slip casting method

被引：17

作者：

Zygmuntowicz, Justyna ^{[1
]}

Wiecinska, Paulina ^{[2
]}

Miazga, Aleksandra ^{[1
]}

Konopka, Katarzyna ^{[1
]}

Kaszuwara, Waldemar ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Mat Sci & Engn, 141 Woloska St, PL-02507 Warsaw, Poland

[2] Warsaw Univ Technol, Fac Chem, 3 Noakowskiego St, PL-00664 Warsaw, Poland

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 130卷 / 01期

关键词：

Centrifugal-slip casting; Al2O3/Ni; Composite; Reductive atmosphere; TG/DTA; Mass spectrometry; MECHANICAL-PROPERTIES; THERMAL-ANALYSIS; COMPOSITES; FABRICATION;

D O I：

10.1007/s10973-017-6232-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The fabrication and the characterization of Al2O3/Ni composites with a gradient distribution of the Ni particles are reported. The composites have been obtained by centrifugal-slip casting and subsequent sintering and had the shape of a hollow cylinder. TG/DTA analysis was done for the nickel powder with the addition of the dispersant used in centrifugal-slip casting as well as for the composite green body. The measurements were performed in two atmospheres: argon and the mixture of argon and hydrogen (1: 1). Additionally, coupling the thermobalance with the mass spectrometer allowed to determine type of gases released from the samples during thermal treatment. The morphology and chemical composition of the produced composites were analyzed using a scanning electron microscope equipped with an EDS detector. Interface between alumina and nickel was described. Moreover, the X-ray diffraction was made. The stereological analysis confirmed that the nickel particles are distributed in the composite in a gradient way.

引用

页码：123 / 130

页数：8

共 25 条

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