紀要論文

放電プラズマ焼結法にて作製したZrO_2/Ti系傾斜機能材料の熱・力学特性に関する種々の考察

MULTIPLE EXAMINATIONS OF THERMAL AND MECHANICAL PROPERTIES OF ZIRCONIA /TITANIUM FUNCTIONALLY GRADED MATERIALS FABRICATED BY SPARK PLASMA SINTERING

jpn

24368083

https://doi.org/10.15002/00030636

法政大学大学院理工学研究科

法政大学大学院紀要. 理工学研究科編

65

1

8

2024-03-24

Version of Record

Functionally graded materials (FGMs) are multi-phase composites that have properties which never be achieved with homogeneous materials by spatially grading the constituents within the materials. This study aims to investigate thermo-mechanical behavior of zirconia (ZrO_2)/ titanium (Ti) FGMs with continuous composition gradients, which are expected to be used in both aerospace and biomedical fields, fabricated by centrifugal slurry methods and spark plasma sintering (SPS). The fabricated samples were proved on their microstructures, using SEM EDS and XPS, and nano-, micro-and macro-mechanical properties. In addition, resistance to cyclic thermal shock loadings of the FGMs was investigated experimentally and numerically. The results demonstrated that various compositional gradation patterns can be achieved by changing the amount of dispersant, ammonium polycarboxylic acid (PCA). Oxygen can play a significant role, which generated through reduction reactions of ZrO_2 during SPS processes, to determine the thermo-mechanical behavior of the FGMs.

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