Microstructure and indentation properties of ZrO2/Ti functionally graded materials fabricated by spark plasma sintering

作者: Hideaki Tsukamoto

DOI: 10.1016/J.MSEA.2015.06.005

关键词: MicromechanicsIndentationTitaniumPhase (matter)Composite materialElastic modulusSpark plasma sinteringMaterials scienceMicrostructureNanoindentation

摘要: This study aims to investigate effects of compositional gradation patterns and amount Y2O3 stabilizing ZrO2 on microstructure nano- micro-indentation properties in ZrO2/Ti functionally graded materials (FGMs) fabricated by spark plasma sintering (SPS) methods. In terms effect patterns, higher content corresponds micro-Vickers hardness, while nanoindentation elastic modulus hardness both Ti phases are independent constituent phase the FGMs. Nanoindentation FGMs high compared those substrates, which can be attributed presence titanium oxides phase. The largely affects with containing noY2O3 has not been soundly because transformation during cooling processes fabrication. Indentation thermal stress states have examined based a mean-field micromechanics-based model.

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